NPORT-EX 2 BRFBCP0BRBalancedCapFd.htm Balanced Capital

Schedule of Investments  (unaudited)

June 30, 2020

  

BlackRock Balanced Capital Fund, Inc.

(Percentages shown are based on Net Assets)

 

Security   Shares/
Investment
Value
    Value  

Investment Companies(a)

 

Equity Funds — 51.2%  

Master Advantage Large Cap Core Portfolio of Master Large Cap Series LLC

  $ 693,573,511     $ 693,573,511  
   

 

 

 
Fixed-Income Funds — 34.4%            

iShares Core U.S. Aggregate Bond ETF

    473,739       56,000,687  

Master Total Return Portfolio of Master Bond LLC

  $ 410,222,664       410,222,664  
   

 

 

 
      466,223,351  
   

 

 

 

Total Long-Term Investments — 85.6%
(Cost: $1,062,875,345)

 

    1,159,796,862  
   

 

 

 
     Shares         

Short-Term Securities(a)(b)

 

Money Market Funds — 13.5%  

BlackRock Liquidity Funds, T-Fund,
Institutional Class, 0.11%

    183,532,979       183,532,979  
   

 

 

 

Total Short-Term Securities — 13.5%
(Cost: $183,532,979)

 

    183,532,979  
   

 

 

 

Total Investments — 99.1%
(Cost: $1,246,408,324)

 

    1,343,329,841  

Other Assets Less Liabilities — 0.9%

 

    12,076,625  
   

 

 

 

Net Assets — 100.0%

 

  $ 1,355,406,466  
   

 

 

 

 

(a) 

Affiliate of the Fund.

(b) 

Annualized 7-day yield as of period end.

 

 

Affiliates

Investments in issuers considered to be an affiliate/affiliates of the Fund during the period ended June 30, 2020 for purposes of
Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

 

Affiliated Issuer    Shares/
Investment
Value
Held at
09/30/19
     Shares/
Investment
Value
Purchased
    Shares/
Investment
Value
Sold
     Shares/
Investment
Value
Held at
06/30/20
     Value at
06/30/20
     Income      Net
Realized
Gain (Loss)(a)
     Change in
Unrealized
Appreciation
(Depreciation)
 

BlackRock Liquidity Funds, T-Fund,

                      

Institutional Class

     159,700,160        23,832,819 (b)             183,532,979      $ 183,532,979      $ 1,322,665      $ 367      $  

iShares Core U.S. Aggregate Bond ETF

     327,759        145,980              473,739        56,000,687        761,786               1,936,989  

Master Advantage Large Cap Core Portfolio of Master Large Cap Series LLC

   $ 651,543,880      $ 42,029,631 (b)(c)           $ 693,573,511        693,573,511        7,257,322        9,483,615        25,288,693  

Master Total Return Portfolio of Master Bond LLC

   $ 387,033,377      $ 23,189,287 (b)(c)           $ 410,222,664        410,222,664        8,582,419        14,892,595        143,627  
             

 

 

    

 

 

    

 

 

    

 

 

 
              $ 1,343,329,841      $ 17,924,192      $ 24,376,577      $ 27,369,309  
             

 

 

    

 

 

    

 

 

    

 

 

 

 

  (a) 

Includes net capital gain distributions, if applicable.

 
  (b) 

Represents net shares/investment value purchased (sold).

 
  (c) 

Inclusive of income, expense, realized and unrealized gains and losses allocated from the Master Portfolio.

 

 

 

  1


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

BlackRock Balanced Capital Fund, Inc.

 

BlackRock Balanced Capital Fund, Inc. (the “Fund”) seeks to achieve its investment objective by investing a significant amount of its assets in Master Advantage Large Cap Core Portfolio of Master Large Cap Series LLC and Master Total Return Portfolio of Master Bond LLC (collectively the “Master Portfolios”), which have the same investment objectives and strategies as the Fund. As of period end, the value of the investments and the percentage owned by the Fund of Master Advantage Large Cap Core Portfolio and Master Total Return Portfolio was $693,573,511 and $410,222,664, respectively and 20.0% and 2.2%, respectively.

Portfolio Abbreviation

 

ETF   Exchange-Traded Fund

 

S&P

  Standard & Poor’s

Derivative Financial Instruments Outstanding as of Period End

Futures Contracts

 

Description    Number of
Contracts
       Expiration
Date
       Notional
Amount
(000)
       Value/
Unrealized
Appreciation
(Depreciation)
 

Long Contracts

                 

S&P 500 E-Mini Index

     887          09/18/20        $   137,050        $ 3,676,899  

U.S. Treasury Notes (10 Year)

     464          09/21/20          64,576          133,587  

U.S. Ultra Treasury Bonds

     108          09/21/20          23,561          (96,059
                 

 

 

 
                    3,714,427  
                 

 

 

 

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of investments and derivative financial instruments. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

 

   

Level 1 — Unadjusted price quotations in active markets/exchanges for identical assets or liabilities that the Fund has the ability to access

 

   

Level 2 — Other observable inputs (including, but not limited to, quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market–corroborated inputs)

 

   

Level 3 — Unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the BlackRock Global Valuation Methodologies Committee’s (the “Global Valuation Committee’s”) assumptions used in determining the fair value of investments and derivative financial instruments)

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Investments classified within Level 3 have significant unobservable inputs used by the Global Valuation Committee in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies or funds. There may not be a secondary market, and/or there are a limited number of investors. The categorization of a value determined for investments and derivative financial instruments is based on the pricing transparency of the investments and derivative financial instruments and is not necessarily an indication of the risks associated with investing in those securities. For information about the Fund’s policy regarding valuation of investments and derivative financial instruments, refer to the Fund’s most recent financial statements as contained in its semi-annual report.

Certain investments of the Fund were fair valued using net asset value per share (“NAV”) as no quoted market value is available and therefore have been excluded from the fair value hierarchy.

The following tables summarize the Fund’s investments and derivative financial instruments categorized in the disclosure hierarchy:

 

      Level 1        Level 2        Level 3        Total  

Assets

                 

Investments

                 

Long-Term Investments

                 

Investment Companies

   $     56,000,687        $     —        $     —        $     56,000,687  

 

 

2  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

BlackRock Balanced Capital Fund, Inc.

 

      Level 1      Level 2      Level 3      Total  

Short-Term Securities

           

Money Market Funds

   $ 183,532,979      $      $      $ 183,532,979  
  

 

 

    

 

 

    

 

 

    

 

 

 
   $ 239,533,666      $      $        239,533,666  
  

 

 

    

 

 

    

 

 

    

 

 

 

Investments Valued at NAV(a)

              1,103,796,175  
           

 

 

 
            $ 1,343,329,841  
           

 

 

 

Derivative Financial Instruments(b)

           

Assets

           

Equity Contracts

   $ 3,676,899      $      $      $ 3,676,899  

Interest Rate Contracts

     133,587                      133,587  

Liabilities

           

Interest Rate Contracts

     (96,059                    (96,059
  

 

 

    

 

 

    

 

 

    

 

 

 
   $ 3,714,427      $      $      $ 3,714,427  
  

 

 

    

 

 

    

 

 

    

 

 

 

The breakdown of the Fund’s investments into major categories is disclosed in the Schedule of Investments above.

 

  (a) 

Certain investments of the Fund were fair valued using NAV per share as no quoted market value is available and therefore have been excluded from the fair value hierarchy.

 
  (b) 

Derivative financial instruments are futures contracts. Futures contracts are valued at the unrealized appreciation (depreciation) on the instrument.

 

 

 

  3


Schedule of Investments  (unaudited)

June 30, 2020

  

Master Advantage Large Cap Core Portfolio

(Percentages shown are based on Net Assets)

 

Security   Shares     Value  

Common Stocks

 

Aerospace & Defense — 1.3%  

Boeing Co.

    21,908     $     4,015,736  

HEICO Corp.

    39,522       3,938,367  

Hexcel Corp.

    11,835       535,179  

L3Harris Technologies, Inc.

    14,710       2,495,846  

Lockheed Martin Corp.

    36,112       13,177,991  

Northrop Grumman Corp.

    21,838       6,713,875  

Spirit AeroSystems Holdings, Inc., Class A

    134,526       3,220,552  

Teledyne Technologies, Inc.(a)

    29,798       9,265,688  
   

 

 

 
      43,363,234  
Air Freight & Logistics — 0.3%  

FedEx Corp.

    11,768       1,650,109  

United Parcel Service, Inc., Class B

    84,500       9,394,710  
   

 

 

 
      11,044,819  
Airlines — 0.3%  

Alaska Air Group, Inc.

    47,860       1,735,403  

Delta Air Lines, Inc.

    227,439       6,379,664  

Southwest Airlines Co.

    40,749       1,392,801  
   

 

 

 
      9,507,868  
Auto Components — 0.1%  

Dana, Inc.

    62,647       763,667  

Goodyear Tire & Rubber Co.

    217,784       1,948,078  
   

 

 

 
      2,711,745  
Automobiles — 0.5%  

Tesla, Inc.(a)

    17,223       18,597,568  
   

 

 

 
Banks — 3.4%  

Bank of America Corp.

    886,381       21,051,549  

CIT Group, Inc.

    95,002       1,969,391  

Citigroup, Inc.

    115,607       5,907,518  

Citizens Financial Group, Inc.

    248,590       6,274,412  

Comerica, Inc.

    8,843       336,918  

Cullen/Frost Bankers, Inc.

    81,206       6,066,900  

East West Bancorp, Inc.

    19,535       707,948  

First Hawaiian, Inc.

    30,117       519,217  

First Horizon National Corp.

    72,754       724,630  

JPMorgan Chase & Co.

    379,093       35,657,488  

PNC Financial Services Group, Inc.

    51,993       5,470,183  

Truist Financial Corp.

    17,761       666,926  

US Bancorp

    89,769       3,305,295  

Wells Fargo & Co.

    1,064,389       27,248,358  

Zions Bancorp NA

    29,965       1,018,810  
   

 

 

 
      116,925,543  
Beverages — 1.8%  

Coca-Cola Co.

    380,755       17,012,133  

Coca-Cola European Partners PLC

    27,354       1,032,887  

Molson Coors Beverage Co., Class B

    109,155       3,750,566  

PepsiCo, Inc.

    294,174       38,907,453  
   

 

 

 
      60,703,039  
Biotechnology — 4.2%  

AbbVie, Inc.

    450,708       44,250,511  

Alexion Pharmaceuticals, Inc.(a)

    5,765       647,064  

Amgen, Inc.

    105,675       24,924,505  

Biogen, Inc.(a)

    28,022       7,497,286  

Bluebird Bio, Inc.(a)

    69,876       4,265,231  

Gilead Sciences, Inc.

    417,234       32,101,984  

Moderna, Inc.(a)

    31,275       2,008,168  

Regeneron Pharmaceuticals, Inc.(a)

    13,470       8,400,566  
Security   Shares     Value  
Biotechnology (continued)  

United Therapeutics Corp.(a)

    17,621     $     2,132,141  

Vertex Pharmaceuticals, Inc.(a)

    61,985       17,994,865  
   

 

 

 
      144,222,321  
Building Products — 0.6%  

Allegion PLC

    199,012       20,343,006  

Resideo Technologies, Inc.(a)

    87,679       1,027,598  
   

 

 

 
      21,370,604  
Capital Markets — 2.4%  

Affiliated Managers Group, Inc.

    45,129       3,364,818  

Ameriprise Financial, Inc.

    4,538       680,882  

Bank of New York Mellon Corp.

    100,310       3,876,982  

Charles Schwab Corp.

    267,168       9,014,248  

CME Group, Inc.

    46,409       7,543,319  

Evercore, Inc., Class A

    11,745       692,015  

FactSet Research Systems, Inc.

    29,411       9,660,631  

Intercontinental Exchange, Inc.

    113,709       10,415,744  

Moody’s Corp.

    9,709       2,667,354  

Morgan Stanley

    90,840       4,387,572  

Northern Trust Corp.

    11,097       880,436  

S&P Global, Inc.

    78,061       25,719,538  

State Street Corp.

    12,321       783,000  

T Rowe Price Group, Inc.

    8,116       1,002,326  

TD Ameritrade Holding Corp.

    31,476       1,145,097  
   

 

 

 
      81,833,962  
Chemicals — 1.8%  

Air Products & Chemicals, Inc.

    46,217       11,159,557  

DuPont de Nemours, Inc.

    8,018       425,996  

Ecolab, Inc.

    141,765       28,204,147  

Linde PLC

    22,229       4,714,993  

LyondellBasell Industries NV, Class A

    35,617       2,340,749  

Mosaic Co.

    190,634       2,384,832  

PPG Industries, Inc.

    39,648       4,205,067  

Sherwin-Williams Co.

    15,646       9,041,041  
   

 

 

 
      62,476,382  
Commercial Services & Supplies — 0.3%  

Cintas Corp.

    28,852       7,685,019  

Copart, Inc.(a)

    28,772       2,395,844  
   

 

 

 
      10,080,863  
Communications Equipment — 1.6%  

Ciena Corp.(a)

    94,827       5,135,830  

Cisco Systems, Inc.

    1,103,417       51,463,369  

InterDigital, Inc.

    9       510  

Motorola Solutions, Inc.

    4,291       601,298  
   

 

 

 
      57,201,007  
Construction & Engineering — 0.2%  

EMCOR Group, Inc.

    28,032       1,854,037  

Fluor Corp.

    61,213       739,453  

MasTec, Inc.(a)

    89,177       4,001,372  

Quanta Services, Inc.

    20,280       795,584  
   

 

 

 
      7,390,446  
Consumer Finance — 0.7%  

Ally Financial, Inc.

    359,328       7,125,474  

American Express Co.

    115,183       10,965,422  

Capital One Financial Corp.

    20,197       1,264,130  

LendingTree, Inc.(a)

    13,523       3,915,314  
   

 

 

 
      23,270,340  
Containers & Packaging — 0.2%  

Westrock Co.

    252,581       7,137,939  
   

 

 

 
 

 

 

  1


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Advantage Large Cap Core Portfolio

(Percentages shown are based on Net Assets)

 

Security   Shares     Value  
Diversified Consumer Services — 0.2%  

frontdoor, Inc.(a)

    43,746     $     1,939,260  

Grand Canyon Education, Inc.(a)

    13,102       1,186,124  

H&R Block, Inc.

    327,403       4,675,315  
   

 

 

 
      7,800,699  
Diversified Financial Services — 1.7%  

Berkshire Hathaway, Inc., Class B(a)(b)

    320,834       57,272,077  
   

 

 

 
Diversified Telecommunication Services — 1.2%  

AT&T Inc.

    662,219       20,018,881  

CenturyLink, Inc.

    311,043       3,119,761  

Verizon Communications, Inc.

    314,818       17,355,916  
   

 

 

 
      40,494,558  
Electric Utilities — 1.7%  

Alliant Energy Corp.

    44,250       2,116,920  

Eversource Energy

    194,283       16,177,945  

IDACORP, Inc.

    72,047       6,294,746  

NextEra Energy, Inc.

    72,085       17,312,654  

Pinnacle West Capital Corp.

    60,906       4,463,801  

Xcel Energy, Inc.

    226,631       14,164,438  
   

 

 

 
      60,530,504  
Electrical Equipment — 0.7%  

AMETEK, Inc.

    181,568       16,226,732  

Hubbell, Inc.

    71,464       8,958,727  
   

 

 

 
      25,185,459  
Electronic Equipment, Instruments & Components — 0.6%  

Avnet, Inc.

    32,458       905,091  

CDW Corp.

    53,280       6,190,070  

National Instruments Corp.

    364,118       14,095,008  

TE Connectivity Ltd.

    5,361       437,190  
   

 

 

 
      21,627,359  
Energy Equipment & Services — 0.2%  

Baker Hughes Co.

    20,051       308,585  

ChampionX Corp.(a)

    269,548       2,630,788  

Schlumberger Ltd.

    167,212       3,075,029  

TechnipFMC PLC(b)

    39,241       268,408  
   

 

 

 
      6,282,810  
Entertainment — 1.0%  

Activision Blizzard, Inc.

    37,437       2,841,468  

Cinemark Holdings, Inc.

    59,444       686,578  

Electronic Arts, Inc.(a)

    24,875       3,284,744  

Netflix, Inc.(a)

    49,970       22,738,349  

Walt Disney Co.

    18,730       2,088,582  

Zynga, Inc., Class A(a)

    422,050       4,026,357  
   

 

 

 
      35,666,078  
Equity Real Estate Investment Trusts (REITs) — 2.5%  

Alexandria Real Estate Equities, Inc.

    19,008       3,084,048  

American Tower Corp.

    58,323       15,078,829  

AvalonBay Communities, Inc.

    20,399       3,154,501  

Boston Properties, Inc.

    142,097       12,842,727  

Camden Property Trust

    4,654       424,538  

Equity Residential

    118,788       6,987,110  

Host Hotels & Resorts, Inc.

    299,273       3,229,156  

Invitation Homes, Inc.

    94,056       2,589,362  

Lamar Advertising Co., Class A

    23,350       1,558,846  

Macerich Co.(b)

    224,781       2,016,286  

National Retail Properties, Inc.

    19,923       706,868  

Outfront Media, Inc.

    174,183       2,468,173  

Park Hotels & Resorts, Inc.

    545,934       5,399,287  

Prologis, Inc.

    161,319       15,055,902  

Realty Income Corp.

    19,222       1,143,709  
Security   Shares     Value  
Equity Real Estate Investment Trusts (REITs) (continued)  

RLJ Lodging Trust

    312,825     $     2,953,068  

Service Properties Trust

    89,058       631,421  

Simon Property Group, Inc.

    61,250       4,188,275  

UDR, Inc.

    21,386       799,409  

Ventas, Inc.

    24,870       910,739  

Welltower, Inc.

    26,412       1,366,821  
   

 

 

 
      86,589,075  
Food & Staples Retailing — 1.5%  

Costco Wholesale Corp.

    160,338       48,616,085  

Performance Food Group Co.(a)

    86,260       2,513,617  

Sprouts Farmers Market, Inc.(a)

    50,736       1,298,334  
   

 

 

 
      52,428,036  
Food Products — 1.4%  

General Mills, Inc.

    411,547       25,371,872  

Hershey Co.

    161,466       20,929,223  

Lamb Weston Holdings, Inc.

    19,270       1,231,931  

Mondelez International, Inc., Class A

    17,336       886,390  
   

 

 

 
      48,419,416  
Gas Utilities — 0.3%  

Southwest Gas Holdings, Inc.

    111,076       7,669,798  

UGI Corp.

    38,766       1,232,759  
   

 

 

 
      8,902,557  
Health Care Equipment & Supplies — 2.7%  

Abbott Laboratories

    212,404       19,420,098  

Cantel Medical Corp.

    41,701       1,844,435  

Danaher Corp.

    33,444       5,913,903  

DENTSPLY SIRONA, Inc.

    42,648       1,879,071  

Edwards Lifesciences Corp.(a)

    278,822       19,269,388  

Envista Holdings Corp.(a)

    19,715       415,789  

Hologic, Inc.(a)

    150,700       8,589,900  

IDEXX Laboratories, Inc.(a)

    23,911       7,894,456  

Intuitive Surgical, Inc.(a)

    961       547,607  

Medtronic PLC

    95,147       8,724,980  

SmileDirectClub, Inc.(a)(b)

    112,832       891,373  

Stryker Corp.

    94,223       16,978,042  
   

 

 

 
      92,369,042  
Health Care Providers & Services — 2.9%  

AmerisourceBergen Corp.

    39,971       4,027,878  

AMN Healthcare Services, Inc.(a)(b)

    18,434       833,954  

Anthem, Inc.

    61,845       16,263,998  

Cardinal Health, Inc.

    16,977       886,030  

Cigna Corp.

    39,839       7,475,788  

CVS Health Corp.

    285,037       18,518,854  

HCA Healthcare, Inc.

    25,049       2,431,256  

McKesson Corp.

    48,420       7,428,596  

Quest Diagnostics, Inc.

    4,409       502,450  

UnitedHealth Group, Inc.

    139,180       41,051,141  
   

 

 

 
      99,419,945  
Health Care Technology — 0.4%  

Teladoc Health, Inc.(a)

    25,116       4,793,137  

Veeva Systems, Inc., Class A(a)

    38,944       9,129,253  
   

 

 

 
      13,922,390  
Hotels, Restaurants & Leisure — 1.6%  

Boyd Gaming Corp.

    103,487       2,162,878  

Chipotle Mexican Grill, Inc.(a)

    3,994       4,203,126  

Choice Hotels International, Inc.(b)

    42,862       3,381,812  

Darden Restaurants, Inc.

    58,643       4,443,380  

Domino’s Pizza, Inc.

    15,565       5,750,334  

Extended Stay America, Inc.

    401,482       4,492,584  
 

 

 

2  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Advantage Large Cap Core Portfolio

(Percentages shown are based on Net Assets)

 

Security   Shares     Value  
Hotels, Restaurants & Leisure (continued)  

International Game Technology PLC

    63,246     $     562,889  

Las Vegas Sands Corp.

    32,023       1,458,327  

McDonald’s Corp.

    84,797       15,642,503  

MGM Resorts International(b)

    30,804       517,507  

Penn National Gaming, Inc.(a)

    37,240       1,137,310  

Texas Roadhouse, Inc.

    71,415       3,754,286  

Vail Resorts, Inc.

    8,240       1,500,916  

Yum! Brands, Inc.

    77,003       6,692,331  
   

 

 

 
      55,700,183  
Household Durables — 0.0%  

DR Horton, Inc.

    20,327       1,127,132  
   

 

 

 
Household Products — 1.9%            

Church & Dwight Co., Inc.

    135,159       10,447,791  

Clorox Co.

    68,928       15,120,735  

Colgate-Palmolive Co.

    16,848       1,234,285  

Procter & Gamble Co.

    322,441       38,554,270  
   

 

 

 
      65,357,081  
Industrial Conglomerates — 1.0%  

3M Co.

    21,568       3,364,392  

General Electric Co.

    79,678       544,201  

Honeywell International, Inc.

    138,419       20,014,003  

Roper Technologies, Inc.

    27,024       10,492,338  
   

 

 

 
      34,414,934  
Insurance — 1.9%  

Arthur J. Gallagher & Co.

    82,131       8,006,951  

Brown & Brown, Inc.

    25,518       1,040,114  

Cincinnati Financial Corp.

    189,734       12,148,668  

First American Financial Corp.

    77,884       3,739,990  

Globe Life, Inc.

    100,618       7,468,874  

Lincoln National Corp.

    34,451       1,267,452  

Marsh & McLennan Cos., Inc.

    53,964       5,794,115  

MetLife, Inc.

    66,082       2,413,315  

Progressive Corp.

    20,444       1,637,769  

Prudential Financial, Inc.

    236,521       14,404,129  

Travelers Cos., Inc.

    12,510       1,426,765  

Unum Group

    114,981       1,907,535  

Willis Towers Watson PLC

    14,350       2,826,232  

WR Berkley Corp.

    31,444       1,801,427  
   

 

 

 
      65,883,336  
Interactive Media & Services — 4.8%  

Alphabet, Inc., Class A(a)

    46,466       65,891,111  

Alphabet, Inc., Class C(a)

    34,557       48,850,121  

Facebook, Inc., Class A(a)

    188,626       42,831,306  

Twitter, Inc.(a)

    227,347       6,772,667  

Yelp, Inc.(a)

    68,522       1,584,914  
   

 

 

 
      165,930,119  
Internet & Direct Marketing Retail — 5.3%  

Amazon.com, Inc.(a)

    62,979       173,747,725  

eBay, Inc.

    122,212       6,410,019  

Etsy, Inc.(a)

    9,924       1,054,226  

Grubhub, Inc.(a)(b)

    10,740       755,022  

Wayfair, Inc., Class A(a)

    10,137       2,003,173  
   

 

 

 
      183,970,165  
IT Services — 5.3%  

Accenture PLC, Class A

    14,497       3,112,796  

Amdocs Ltd.

    72,281       4,400,467  

Automatic Data Processing, Inc.

    200,255       29,815,967  

Broadridge Financial Solutions, Inc.

    8,216       1,036,777  

Cognizant Technology Solutions Corp., Class A

    8,870       503,993  
Security   Shares     Value  
IT Services (continued)  

Fiserv, Inc.(a)

    65,943     $     6,437,356  

Jack Henry & Associates, Inc.

    24,899       4,582,163  

Mastercard, Inc., Class A

    126,023       37,265,001  

Paychex, Inc.

    256,472       19,427,754  

PayPal Holdings, Inc.(a)

    254,576       44,354,777  

Visa, Inc., Class A

    163,390       31,562,046  
   

 

 

 
      182,499,097  
Leisure Products — 0.0%  

Peloton Interactive, Inc., Class A(a)

    6,532       377,354  
   

 

 

 
Life Sciences Tools & Services — 0.1%            

Mettler-Toledo International, Inc.(a)

    1,673       1,347,685  

Thermo Fisher Scientific, Inc.

    6,443       2,334,557  
   

 

 

 
      3,682,242  
Machinery — 1.9%  

AGCO Corp.

    24,793       1,375,020  

Deere & Co.

    32,896       5,169,606  

Fortive Corp.

    16,980       1,148,867  

IDEX Corp.

    42,900       6,779,916  

Illinois Tool Works, Inc.

    56,484       9,876,227  

Middleby Corp.(a)

    47,914       3,782,331  

Oshkosh Corp.

    194,610       13,937,968  

PACCAR, Inc.

    215,510       16,130,924  

Snap-on, Inc.

    39,706       5,499,678  

Xylem, Inc.

    30,028       1,950,619  
   

 

 

 
      65,651,156  
Media — 1.7%  

AMC Networks, Inc., Class A(a)

    127,914       2,991,909  

Comcast Corp., Class A

    352,780       13,751,364  

Discovery, Inc., Class A(a)(b)

    334,179       7,051,177  

Interpublic Group of Cos., Inc.

    952,759       16,349,344  

Liberty Media Corp. — Liberty SiriusXM,
Class A(a)

    9,987       344,751  

Sirius XM Holdings, Inc.(b)

    2,871,834       16,857,666  

ViacomCBS, Inc., Class B

    56,821       1,325,066  
   

 

 

 
      58,671,277  
Metals & Mining — 0.2%  

Alcoa Corp.(a)

    243,274       2,734,400  

Reliance Steel & Aluminum Co.

    36,858       3,498,930  
   

 

 

 
      6,233,330  
Mortgage Real Estate Investment Trusts (REITs) — 0.0%  

Two Harbors Investment Corp.

    124,371       626,830  
   

 

 

 
Multiline Retail — 0.3%            

Macy’s, Inc.(b)

    369,624       2,543,013  

Target Corp.

    79,879       9,579,889  
   

 

 

 
      12,122,902  
Multi-Utilities — 0.7%  

Ameren Corp.

    91,753       6,455,741  

Avista Corp.

    10,875       395,741  

CMS Energy Corp.

    50,828       2,969,372  

Consolidated Edison, Inc.

    127,566       9,175,822  

DTE Energy Co.

    50,021       5,377,258  

Public Service Enterprise Group, Inc.

    6,335       311,429  
   

 

 

 
      24,685,363  
Oil, Gas & Consumable Fuels — 1.7%  

Chevron Corp.

    117,904       10,520,574  

Concho Resources, Inc.

    19,554       1,007,031  

ConocoPhillips

    178,205       7,488,174  

Continental Resources, Inc.

    224,632       3,937,799  

EOG Resources, Inc.

    234,385       11,873,944  
 

 

 

  3


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Advantage Large Cap Core Portfolio

(Percentages shown are based on Net Assets)

 

Security   Shares     Value  
Oil, Gas & Consumable Fuels (continued)  

Exxon Mobil Corp.

    104,176     $      4,658,751  

Marathon Oil Corp.

    847,158       5,184,607  

Marathon Petroleum Corp.

    19,138       715,378  

PBF Energy, Inc., Class A

    34,025       348,416  

Pioneer Natural Resources Co.

    7,199       703,342  

Suncor Energy, Inc.

    193,322       3,259,409  

Valero Energy Corp.

    92,926       5,465,907  

Williams Cos., Inc.

    287,674       5,471,560  
   

 

 

 
      60,634,892  
Paper & Forest Products — 0.1%  

Domtar Corp.

    218,447       4,611,416  
   

 

 

 
Pharmaceuticals — 4.0%  

Bristol-Myers Squibb Co.

    255,859       15,044,509  

Elanco Animal Health, Inc.(a)

    48,898       1,048,862  

Eli Lilly and Co.

    56,472       9,271,573  

Johnson & Johnson

    223,327       31,406,476  

Merck & Co., Inc.

    557,570       43,116,888  

Mylan NV(a)(b)

    177,541       2,854,859  

Pfizer, Inc.

    511,571       16,728,372  

Zoetis, Inc.

    132,367       18,139,574  
   

 

 

 
      137,611,113  
Professional Services — 0.4%  

IHS Markit Ltd.

    63,311       4,779,980  

Insperity, Inc.

    12,493       808,672  

Robert Half International, Inc.

    149,794       7,913,617  
   

 

 

 
      13,502,269  
Road & Rail — 0.9%  

AMERCO

    11,832       3,575,512  

CSX Corp.

    74,819       5,217,877  

Landstar System, Inc.

    69,535       7,809,476  

Lyft, Inc., Class A(a)

    13,602       449,002  

Norfolk Southern Corp.

    35,385       6,212,545  

Union Pacific Corp.

    43,632       7,376,862  
   

 

 

 
      30,641,274  
Semiconductors & Semiconductor Equipment — 4.7%  

Applied Materials, Inc.

    262,407       15,862,503  

Cirrus Logic, Inc.(a)

    128,789       7,956,584  

Intel Corp.

    695,409       41,606,321  

Lam Research Corp.

    41,757       13,506,719  

Maxim Integrated Products, Inc.

    16,562       1,003,823  

NVIDIA Corp.

    142,489       54,132,996  

Skyworks Solutions, Inc.

    94,704       12,108,853  

Texas Instruments, Inc.

    110,502       14,030,439  

Xilinx, Inc.

    16,987       1,671,351  
   

 

 

 
      161,879,589  
Software — 10.3%  

Adobe, Inc.(a)

    86,763       37,768,802  

Atlassian Corp. PLC, Class A(a)

    33,664       6,068,609  

Citrix Systems, Inc.

    36,723       5,431,699  

Cloudflare, Inc., Class A(a)

    105,248       3,783,666  

DocuSign, Inc.(a)

    38,672       6,659,705  

HubSpot, Inc.(a)

    17,123       3,841,545  

Intuit, Inc.

    55,176       16,342,579  

Microsoft Corp.

    1,055,254       214,754,742  

New Relic, Inc.(a)

    23,280       1,603,992  

RingCentral, Inc., Class A(a)(b)

    25,487       7,264,050  

salesforce.com, Inc.(a)

    98,586       18,468,115  

ServiceNow, Inc.(a)

    11,097       4,494,951  

Slack Technologies, Inc., Class A(a)

    145,175       4,513,491  

Smartsheet, Inc., Class A(a)

    77,149       3,928,427  
Security   Shares     Value  
Software (continued)  

VMware, Inc., Class A(a)

    6,311     $     977,321  

Workday, Inc., Class A(a)

    23,146       4,336,635  

Zendesk, Inc.(a)

    32,348       2,863,768  

Zoom Video Communications, Inc.,
Class A(a)

    32,312       8,192,384  

Zscaler, Inc.(a)

    39,865       4,365,218  
   

 

 

 
      355,659,699  
Specialty Retail — 2.7%  

Best Buy Co., Inc.

    62,991       5,497,225  

Home Depot, Inc.

    218,488       54,733,429  

Lowe’s Cos., Inc.

    215,717       29,147,681  

TJX Cos., Inc.

    109,658       5,544,308  
   

 

 

 
      94,922,643  
Technology Hardware, Storage & Peripherals — 4.7%  

Apple Inc.

    430,826       157,165,325  

HP, Inc.

    171,368       2,986,944  

NetApp, Inc.

    32,686       1,450,278  
   

 

 

 
      161,602,547  
Textiles, Apparel & Luxury Goods — 0.8%  

Lululemon Athletica, Inc.(a)

    13,032       4,066,114  

NIKE, Inc., Class B

    227,535       22,309,807  

Ralph Lauren Corp.

    14,175       1,027,971  

VF Corp.

    14,828       903,618  
   

 

 

 
      28,307,510  
Thrifts & Mortgage Finance — 0.0%  

MGIC Investment Corp.

    120,021       982,972  
   

 

 

 
Tobacco — 0.0%            

Altria Group, Inc.

    32,593       1,279,275  
   

 

 

 
Trading Companies & Distributors — 0.2%  

GATX Corp.

    127,514       7,775,804  

WW Grainger, Inc.

    1,124       353,116  
   

 

 

 
      8,128,920  
Water Utilities — 0.7%  

American Water Works Co., Inc.

    178,957       23,024,608  
   

 

 

 
Wireless Telecommunication Services — 0.3%  

Telephone & Data Systems, Inc.

    343,462       6,828,024  

United States Cellular Corp.(a)

    129,200       3,988,404  
   

 

 

 
      10,816,428  
   

 

 

 

Total Common Stocks — 96.9%
(Cost: $2,809,400,002)

      3,355,285,341  
   

 

 

 

Rights

 

Pharmaceuticals — 0.0%            

Bristol-Myers Squibb Co., CVR(a)

    87,067       311,700  
   

 

 

 

Total Rights — 0.0%
(Cost: $200,254)

 

    311,700  
   

 

 

 

Total Long-Term Investments — 96.9%
(Cost: $2,809,600,256)

 

    3,355,597,041  
   

 

 

 

Short-Term Securities

   
Money Market Funds — 3.6%  

BlackRock Liquidity Funds, T-Fund, Institutional Class, 0.11%(c)(d)

    99,120,916       99,120,916  

SL Liquidity Series, LLC, Money Market
Series, 0.50%(c)(d)(e

    25,757,153       25,777,759  
   

 

 

 
      124,898,675  
   

 

 

 
 

 

 

4  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Advantage Large Cap Core Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  
Time Deposits — 0.0%                  
United States — 0.0%                  

BNP Paribas S.A., 0.10%, 07/01/20
(Cost: $485,276)

    USD       485     $     485,276  
     

 

 

 

Total Short-Term Securities — 3.6%
(Cost: $125,362,559)

 

      125,383,951  
     

 

 

 

Total Investments — 100.5%
(Cost: $2,934,962,815)

 

      3,480,980,992  

Liabilities in Excess of Other Assets — (0.5)%

 

      (17,617,476
     

 

 

 

Net Assets — 100.0%

 

    $ 3,463,363,516  
     

 

 

 

 

(a) 

Non-income producing security.

(b) 

All or a portion of this security is on loan.

(c) 

Affiliate of the Portfolio.

(d) 

Annualized 7-day yield as of period end.

(e) 

All or a portion of this security was purchased with the cash collateral from loaned securities.

 

Affiliates

Investments in issuers considered to be an affiliate/affiliates of the Portfolio during the period ended June 30, 2020 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

 

Affiliated Issuer    Shares
Held at
09/30/19
     Shares
Purchased
     Shares
Sold
     Shares
Held at
06/30/20
     Value at
06/30/20
     Income      Net
Realized
Gain (Loss)(a)
     Change in
Unrealized
Appreciation
(Depreciation)
 

BlackRock Liquidity Funds, T-Fund, Institutional Class

     38,261,121        60,859,795 (b)              99,120,916      $ 99,120,916      $ 282,297      $ 69      $  

SL Liquidity Series, LLC, Money Market Series

     9,759,892        15,997,261 (b)              25,757,153        25,777,759        194,399 (c)       30,632        21,201  
              

 

 

    

 

 

    

 

 

    

 

 

 
               $ 124,898,675      $ 476,696      $ 30,701      $ 21,201  
              

 

 

    

 

 

    

 

 

    

 

 

 

 

  (a) 

Includes net capital gain distributions, if applicable.

 
  (b) 

Represents net shares purchased (sold).

 
  (c) 

All or a portion represents securities lending income earned from the reinvestment of cash collateral from loaned securities, net of fees and collateral investment expenses, and other payments to and from borrowers of securities.

 

For Master Portfolio compliance purposes, the Master Portfolio’s sector classifications refer to one or more of the sector sub-classifications used by one or more widely recognized market indexes or rating group indexes, and/or as defined by the investment adviser. These definitions may not apply for purposes of this report, which may combine such sector sub-classifications for reporting ease.

Currency Abbreviation

 

USD   United States Dollar

Portfolio Abbreviation

 

S&P   Standard & Poor’s

Derivative Financial Instruments Outstanding as of Period End

Futures Contracts

 

Description    Number of
Contracts
       Expiration
Date
       Notional
Amount
(000)
       Value/
Unrealized
Appreciation
(Depreciation)
 

Long Contracts

                 

S&P 500 E-Mini Index

     718          09/18/20        $   110,938        $ 2,266,161  
                 

 

 

 

 

 

  5


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Advantage Large Cap Core Portfolio

 

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of investments and derivative financial instruments. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

 

   

Level 1 — Unadjusted price quotations in active markets/exchanges for identical assets or liabilities that the Portfolio has the ability to access

 

   

Level 2 — Other observable inputs (including, but not limited to, quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market–corroborated inputs)

 

   

Level 3 — Unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the BlackRock Global Valuation Methodologies Committee’s (the “Global Valuation Committee’s”) assumptions used in determining the fair value of investments and derivative financial instruments)

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Investments classified within Level 3 have significant unobservable inputs used by the Global Valuation Committee in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies or funds. There may not be a secondary market, and/or there are a limited number of investors. The categorization of a value determined for investments and derivative financial instruments is based on the pricing transparency of the investments and derivative financial instruments and is not necessarily an indication of the risks associated with investing in those securities. For information about the Master Portfolio’s policy regarding valuation of investments and derivative financial instruments, refer to the Master Portfolio’s most recent financial statements as contained in its semi-annual report.

Certain investments of the Master Portfolio were fair valued using net asset value per share (“NAV”) as no quoted market value is available and therefore have been excluded from the fair value hierarchy.

The following tables summarize the Master Portfolio’s investments and derivative financial instruments categorized in the disclosure hierarchy:

 

      Level 1        Level 2        Level 3        Total  

Assets

                 

Investments

                 

Long-Term Investments

                 

Common Stocks

   $ 3,355,285,341        $        $        $ 3,355,285,341  

Rights

     311,700                            311,700  

Short-Term Securities

                 

Money Market Funds

     99,120,916                            99,120,916  

Time Deposits

              485,276                   485,276  
  

 

 

      

 

 

      

 

 

      

 

 

 
   $ 3,454,717,957        $ 485,276        $          3,455,203,233  
  

 

 

      

 

 

      

 

 

      

 

 

 

Investments Valued at NAV(a)

                    25,777,759  
                 

 

 

 
                  $ 3,480,980,992  
                 

 

 

 

Derivative Financial Instruments(b)

                 

Assets

                 

Equity Contracts

   $ 2,266,161        $        $        $ 2,266,161  
  

 

 

      

 

 

      

 

 

      

 

 

 

The breakdown of the Portfolio’s investments into major categories is disclosed in the Schedule of Investments above.

 

  (a) 

Certain investments of the Portfolio were fair valued using NAV per share as no quoted market value is available and therefore have been excluded from the fair value hierarchy.

 
  (b) 

Derivative financial instruments are futures contracts. Futures contracts are valued at the unrealized appreciation (depreciation) on the instrument.

 

 

 

6  


Schedule of Investments  (unaudited)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities

 

ACE Securities Corp. Home Equity Loan Trust

     

Series 2003-OP1, Class A2,
(1 mo. LIBOR US + 0.72%),
0.90%, 12/25/33(a)

    USD       581     $ 500,040  

Series 2006-CW1, Class A2C,
(1 mo. LIBOR US + 0.14%),
0.33%, 07/25/36(a)

      358       300,041  

Series 2007-HE4, Class A2A,
(1 mo. LIBOR US + 0.13%),
0.32%, 05/25/37(a)

      2,665       641,924  

ACIS CLO Ltd., Series 2014-4A, Class A,
(3 mo. LIBOR US + 1.42%),
2.11%, 05/01/26(a)(b)

      750       747,874  

Adams Mill CLO Ltd.

     

Series 2014-1A, Class A2R,
(3 mo. LIBOR US + 1.10%),
2.32%, 07/15/26(a)(b)

      2,872       2,852,866  

Series 2014-1A, Class C1R,
(3 mo. LIBOR US + 2.35%),
3.57%, 07/15/26(a)(b)

      1,610       1,588,265  

AGL Core CLO 2 Ltd., Series 2019-2A, Class A1,
(3 mo. LIBOR US + 1.39%),
2.53%, 04/20/32(a)(b)

      8,405       8,291,191  

AGL Core CLO 5 Ltd., Series 2020-5A, Class D,
(3 mo. LIBOR US + 4.95%),
5.25%, 07/20/30(a)(b)

      1,750       1,771,875  

AIMCO CLO

     

Series 2015-AA, Class BR,

(3 mo. LIBOR US + 1.30%),
2.52%, 01/15/28(a)(b)

      950       907,278  

Series 2017-AA, Class A, (3 mo. LIBOR US + 1.26%), 2.40%, 07/20/29(a)(b)

      500       492,369  

Series 2017-AA, Class C,
(3 mo. LIBOR US + 2.45%),
3.59%, 07/20/29(a)(b)

      500       488,032  

Ajax Mortgage Loan Trust

     

Series 2017-D, Class A,
3.75%, 12/25/57(b)(c)

      8,763       8,764,347  

Series 2017-D, Class B,
0.00%, 12/25/57(b)(c)(d)

      1,691       892,019  

Series 2018-A, Class A,
3.85%, 04/25/58(b)(c)

      9,274       8,810,501  

Series 2018-A, Class B,
0.00%, 04/25/58(b)

      2,641       1,260,340  

Series 2018-B, Class A,
3.75%, 02/26/57(b)(c)

      3,990       3,790,883  

Series 2018-B, Class B,
0.00%, 02/26/57(b)

      2,679       730,363  

Series 2018-D, Class A,
3.75%, 08/25/58(b)(c)(d)

      10,626       10,095,162  

Series 2018-D, Class B,
0.00%, 08/25/58(b)(c)(d)

      2,846       1,352,100  

Series 2018-E, Class A,
4.38%, 06/25/58(b)(d)

      4,530       4,578,923  

Series 2018-E, Class B,
5.25%, 06/25/58(b)(c)(d)

      840       844,956  

Series 2018-E, Class C,
0.00%, 06/25/58(b)(d)

      2,116       1,514,234  

Series 2018-F, Class A,
4.38%, 11/25/58(b)(c)(d)

      14,779       14,899,057  

Series 2018-F, Class B,
5.25%, 11/25/58(b)(c)(d)

      2,415       2,393,657  

Series 2018-F, Class C,
0.00%, 11/25/58(b)

      5,676       3,201,890  

Series 2018-G, Class A,
4.38%, 06/25/57(b)(c)(d)

      12,770       12,386,880  

Series 2018-G, Class B,
5.25%, 06/25/57(b)(c)(d)

      2,042       1,531,500  

Series 2018-G, Class C,
0.00%, 06/25/57(b)(c)

      5,264       5,149,901  

Series 2019-A, Class A,
3.75%, 08/25/57(b)(d)

      12,958       13,293,736  

Series 2019-A, Class B,
5.25%, 08/25/57(b)(d)

      1,720       1,247,223  

Series 2019-A, Class C,
0.00%, 08/25/57(b)(c)

      4,309       3,547,867  

Series 2019-B, Class A,
3.75%, 01/25/59(b)(d)

      21,455       22,040,914  

Series 2019-B, Class B,
5.25%, 01/25/59(b)(c)(d)

      2,845       2,133,750  

Series 2019-B, Class C,
0.00%, 01/25/59(b)(c)

      7,281       6,212,702  

Series 2019-C, Class A,
3.95%, 10/25/58(b)(d)

      6,645       6,631,433  

Series 2019-E, Class A,
3.00%, 09/25/59(b)(e)

      23,607       23,045,260  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

Ajax Mortgage Loan Trust

     

Series 2019-E, Class B,
4.88%, 09/25/59(b)(e)

    USD       2,600     $ 2,165,119  

Series 2019-E, Class C,
0.00%, 09/25/59(b)

      6,130       2,869,039  

Series 2019-G, Class A,
3.00%, 09/25/59(b)(e)

      15,943       15,457,697  

Series 2019-G, Class B,
4.25%, 09/25/59(b)(e)

      2,120       1,716,482  

Series 2019-G, Class C,
0.00%, 09/25/59(b)

      5,425       3,934,145  

Series 2019-H, Class A,
3.00%, 11/25/59(b)(e)

      14,987       14,524,759  

Series 2019-H, Class B,
4.25%, 11/25/59(b)(e)

      1,970       1,595,033  

Series 2019-H, Class C,
0.00%, 11/25/59(b)

      5,033       3,847,066  

Series 2020-A, Class A,
2.38%, 12/25/59(b)(e)

      28,243       28,046,807  

Series 2020-A, Class B,
3.50%, 12/25/59(b)(e)

      3,853       3,814,302  

Series 2020-A, Class C,
0.00%, 12/25/59(b)(c)

      9,347       5,810,936  

Allegro CLO II-S Ltd., Series 2014-1RA, Class A1,
(3 mo. LIBOR US + 1.08%),
2.19%, 10/21/28(a)(b)

      3,790       3,710,200  

Allegro CLO IV Ltd.

     

Series 2016-1A, Class AR,
(3 mo. LIBOR US + 1.15%),
2.37%, 01/15/30(a)(b)

      6,640       6,536,678  

Series 2016-1A, Class BR,
(3 mo. LIBOR US + 1.70%),
2.92%, 01/15/30(a)(b)

      2,530       2,452,833  

Allegro CLO V Ltd., Series 2017-1A, Class A,
(3 mo. LIBOR US + 1.24%),
2.42%, 10/16/30(a)(b)

      1,100       1,071,832  

ALM 2020 Ltd., Series 2020-1A, Class A2,
(3 mo. LIBOR US + 1.85%),
3.36%, 10/15/29(a)(b)

      7,780       7,604,839  

ALM VII Ltd.

     

Series 2012-7A, Class A1A2,
(3 mo. LIBOR US + 1.17%),
2.39%, 07/15/29(a)(b)

      750       738,230  

Series 2012-7A, Class A2R2,
(3 mo. LIBOR US + 1.85%),
3.07%, 07/15/29(a)(b)

      591       579,052  

ALM VII R Ltd., Series 2013-7RA, Class A1R,
(3 mo. LIBOR US + 1.41%),
2.63%, 10/15/28(a)(b)

      2,970       2,947,653  

ALM XIX Ltd.

     

Series 2016-19A, Class A1RA,
(3 mo. LIBOR US + 1.00%),
2.22%, 04/16/29(a)(b)(c)

      750       738,600  

Series 2016-19A, Class A1RB,
(3 mo. LIBOR US + 1.35%),
2.57%, 04/16/29(a)(b)(c)

      500       475,000  

Series 2016-19A, Class A2RA,
(3 mo. LIBOR US + 1.45%),
2.67%, 04/16/29(a)(b)(c)

      3,370       3,289,120  

ALM XVI Ltd./ALM XVI LLC

     

Series 2015-16A, Class A2R2,
(3 mo. LIBOR US + 1.50%),
2.72%, 07/15/27(a)(b)

      6,284       6,106,282  

Series 2015-16A, Class BR2,
(3 mo. LIBOR US + 1.90%),
3.12%, 07/15/27(a)(b)

      2,060       1,982,270  

ALM XVIII Ltd., Series 2016-18A, Class A2R,
(3 mo. LIBOR US + 1.65%),
2.87%, 01/15/28(a)(b)

      750       728,938  

AMMC CLO 16 Ltd., Series 2015-16A, Class BR,
(3 mo. LIBOR US + 1.60%),
2.91%, 04/14/29(a)(b)

      500       479,561  

AMMC CLO 21 Ltd., Series 2017-21A, Class A,
(3 mo. LIBOR US + 1.25%),
1.81%, 11/02/30(a)(b)

      750       737,452  

AMMC CLO XII Ltd., Series 2013-12A, Class AR,
(3 mo. LIBOR US + 1.20%),
1.65%, 11/10/30(a)(b)

      540       529,492  

AMMC CLO XIII Ltd., Series 2013-13A, Class A1LR,
(3 mo. LIBOR US + 1.26%),
2.28%, 07/24/29(a)(b)

      2,606       2,574,552  
 

 

 

  1


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

AMMC CLO XIV Ltd., Series 2014-14A, Class A1LR, (3 mo. LIBOR US + 1.25%), 2.24%, 07/25/29(a)(b)

    USD       6,220     $   6,102,613  

AMSR Trust, Series 2020-SFR2, Class D, 3.28%, 07/17/37(b)

      2,437       2,475,995  

Anchorage Capital CLO 3-R Ltd.

     

Series 2014-3RA, Class A, (3 mo. LIBOR US + 1.05%), 1.94%, 01/28/31(a)(b)

      2,120       2,071,253  

Series 2014-3RA, Class B, (3 mo. LIBOR US + 1.50%), 2.39%, 01/28/31(a)(b)

      3,600       3,461,037  

Series 2014-3RA, Class C, (3 mo. LIBOR US + 1.85%), 2.74%, 01/28/31(a)(b)

      500       472,959  

Anchorage Capital CLO 4-R Ltd.

     

Series 2014-4RA, Class A, (3 mo. LIBOR US + 1.05%), 1.94%, 01/28/31(a)(b)

      5,330       5,183,092  

Series 2014-4RA, Class C, (3 mo. LIBOR US + 1.85%), 2.74%, 01/28/31(a)(b)

      5,550       5,261,510  

Anchorage Capital CLO 5-R Ltd.

     

Series 2014-5RA, Class B, (3 mo. LIBOR US + 1.45%), 2.67%, 01/15/30(a)(b)

      9,200       8,864,381  

Series 2014-5RA, Class C, (3 mo. LIBOR US + 1.85%), 3.07%, 01/15/30(a)(b)

      3,540       3,319,287  

Anchorage Capital CLO 6 Ltd.,
Series 2015-6A, Class AR, (3 mo. LIBOR US + 1.27%), 2.49%, 07/15/30(a)(b)

      4,010       3,922,810  

Anchorage Capital CLO 7 Ltd.

     

Series 2015-7A, Class AR2, (3 mo. LIBOR US + 1.09%), 2.11%, 01/28/31(a)(b)

      4,936       4,818,414  

Series 2015-7A, Class BR2, (3 mo. LIBOR US + 1.75%), 2.77%, 01/28/31(a)(b)

      7,620       7,381,954  

Series 2015-7A, Class CR2, (3 mo. LIBOR US + 2.20%), 3.22%, 01/28/31(a)(b)

      4,250       3,958,598  

Series 2015-7A, Class D1R2, (3 mo. LIBOR US + 3.50%),
4.52%, 01/28/31(a)(b)

      1,140       1,065,366  

Anchorage Capital CLO 8 Ltd.

     

Series 2016-8A, Class AR, (3 mo. LIBOR US + 1.00%), 1.89%, 07/28/28(a)(b)

      2,430       2,388,173  

Series 2016-8A, Class BR, (3 mo. LIBOR US + 1.60%), 2.49%, 07/28/28(a)(b)

      3,050       2,958,284  

Anchorage Capital CLO Ltd.

     

Series 2013-1A, Class A1R, (3 mo. LIBOR US + 1.25%), 2.56%, 10/13/30(a)(b)

      2,755       2,708,212  

Series 2013-1A, Class A2R, (3 mo. LIBOR US + 1.65%), 2.96%, 10/13/30(a)(b)

      750       726,083  

Series 2013-1A, Class BR, (3 mo. LIBOR US + 2.15%), 3.46%, 10/13/30(a)(b)

      1,410       1,351,875  

Apidos CLO XII, Series 2013-12A, Class AR, (3 mo. LIBOR US + 1.08%), 2.30%, 04/15/31(a)(b)

      3,152       3,075,276  

Apidos CLO XV, Series 2013-15A, Class A1RR, (3 mo. LIBOR US + 1.01%), 2.15%, 04/20/31(a)(b)

      1,080       1,049,569  

Apidos CLO XVIII, Series 2018-18A, Class A1, (3 mo. LIBOR US + 1.14%), 2.24%, 10/22/30(a)(b)

      880       846,158  

Apidos CLO XXXI, Series 2019-31A, Class B, (3 mo. LIBOR US + 1.90%), 3.12%, 04/15/31(a)(b)

      2,950       2,882,071  

Apres Static CLO Ltd., Series 2019-1A, Class A2, (3 mo. LIBOR US + 1.75%), 2.97%, 01/15/27(a)(b)

      350       342,647  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

Aqueduct European CLO DAC, Series 2019-4A, Class B1, (3 mo. EURIBOR + 1.80%), 1.80%, 07/15/32(a)(b)

    EUR       750     $ 835,034  

Arbor Realty Collateralized Loan Obligation Ltd., Series 2017-FL3, Class A, (1 mo. LIBOR US + 0.99%), 1.18%, 12/15/27(a)(b)

    USD       3,740         3,673,391  

Ares XXXVII CLO Ltd., Series 2015-4A, Class A1R, (3 mo. LIBOR US + 1.17%), 2.39%, 10/15/30(a)(b)

      1,150       1,127,851  

Argent Mortgage Loan Trust, Series 2005-W1, Class A2, (1 mo. LIBOR US + 0.48%), 0.66%, 05/25/35(a)

      3,899       3,407,207  

ASSURANT CLO I Ltd., Series 2017-1A, Class B, (3 mo. LIBOR US + 1.70%), 2.84%, 10/20/29(a)(b)

      1,400       1,349,662  

Atrium IX, Series 9A, Class AR, (3 mo. LIBOR US + 1.24%), 1.61%, 05/28/30(a)(b)

      4,010       3,948,144  

Atrium XII

     

Series 12A, Class AR, (3 mo. LIBOR US + 0.83%), 1.93%, 04/22/27(a)(b)

      1,607       1,589,026  

Series 12A, Class CR, (3 mo. LIBOR US + 1.65%), 2.75%, 04/22/27(a)(b)

      2,381       2,246,320  

Atrium XIII, Series 13A, Class B, (3 mo. LIBOR US + 1.50%), 2.54%, 11/21/30(a)(b)

      1,000       958,073  

Avery Point IV CLO Ltd., Series 2014-1A, Class AR, (3 mo. LIBOR US + 1.10%), 2.09%, 04/25/26(a)(b)

      7,729       7,692,456  

Avery Point V CLO Ltd.

     

Series 2014-5A, Class AR, (3 mo. LIBOR US + 0.98%), 2.12%, 07/17/26(a)(b)

      1,441       1,430,826  

Series 2014-5A, Class BR, (3 mo. LIBOR US + 1.50%), 2.64%, 07/17/26(a)(b)

      2,250       2,204,868  

Avery Point VI CLO Ltd.

     

Series 2015-6A, Class AR, (3 mo. LIBOR US + 1.05%), 1.59%, 08/05/27(a)(b)

      3,960       3,921,458  

Series 2015-6A, Class BR, (3 mo. LIBOR US + 1.50%), 2.04%, 08/05/27(a)(b)

      3,240       3,131,991  

Avery Point VII CLO Ltd., Series 2015-7A, Class AR, (3 mo. LIBOR US + 1.14%), 2.36%, 01/15/28(a)(b)

      7,480       7,382,652  

B2R Mortgage Trust, Series 2015-2, Class A, 3.34%, 11/15/48(b)

      125       124,904  

Babson CLO Ltd.

     

Series 2015-2A, Class AR, (3 mo. LIBOR US + 1.19%), 2.33%, 10/20/30(a)(b)

      2,590       2,530,291  

Series 2015-IA, Class BR, (3 mo. LIBOR US + 1.40%), 2.54%, 01/20/31(a)(b)

      610       579,602  

Bain Capital Credit CLO Ltd.

     

Series 2016-2A, Class AR, (3 mo. LIBOR US + 1.14%), 2.36%, 01/15/29(a)(b)

      1,350       1,316,248  

Series 2016-2A, Class BR, (3 mo. LIBOR US + 1.80%), 3.02%, 01/15/29(a)(b)

      1,000       964,623  

Series 2018-2A, Class A1, (3 mo. LIBOR US + 1.08%), 2.22%, 07/19/31(a)(b)

      1,420       1,384,946  

BankAmerica Manufactured Housing Contract Trust

     

Series 1997-2, Class B1, 7.07%, 02/10/22(d)

      1,680       1,037,524  

Series 1998-2, Class B1, 7.50%, 12/10/25(d)

      2,790       1,377,568  

Barings CLO Ltd., Series 2018-3A, Class A1, (3 mo. LIBOR US + 0.95%),
2.09%, 07/20/29(a)(b)

      1,085       1,068,655  
 

 

 

2  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

Battalion CLO VII Ltd., Series 2014-7A, Class A1RR, (3 mo. LIBOR US + 1.04%), 2.18%, 07/17/28(a)(b)

    USD       3,450     $ 3,394,973  

Battalion CLO VIII Ltd.

     

Series 2015-8A, Class A1R2, (3 mo. LIBOR US + 1.07%),
2.21%, 07/18/30(a)(b)

      6,500       6,292,749  

Series 2015-8A, Class A2R2, (3 mo. LIBOR US + 1.55%),
2.69%, 07/18/30(a)(b)

      3,250       3,124,689  

Series 2015-8A, Class BR2, (3 mo. LIBOR US + 2.00%),
3.14%, 07/18/30(a)(b)

      2,901       2,642,548  

Battalion CLO X Ltd., Series 2016-10A, Class A1R, (3 mo. LIBOR US + 1.25%), 2.27%, 01/24/29(a)(b)

      23,120       22,795,328  

Bayview Financial Revolving Asset Trust

     

Series 2004-B, Class A1, (1 mo. LIBOR US + 1.00%), 1.18%, 05/28/39(a)(b)

      5,495       4,504,223  

Series 2004-B, Class A2, (1 mo. LIBOR US + 1.30%), 1.48%, 05/28/39(a)(b)

      528       436,762  

Series 2005-A, Class A1, (1 mo. LIBOR US + 1.00%), 1.18%, 02/28/40(a)(b)

      2,365       2,159,740  

Series 2005-E, Class A1, (1 mo. LIBOR US + 1.00%), 1.18%, 12/28/40(a)(b)

      876       769,583  

BCMSC Trust

     

Series 2000-A, Class A2,
7.58%, 06/15/30(d)

      1,674       486,544  

Series 2000-A, Class A3,
7.83%, 06/15/30(d)

      1,554       466,776  

Series 2000-A, Class A4,
8.29%, 06/15/30(d)

      1,121       356,496  

BDS Ltd., Series 2019-FL3, Class A, (1 mo. LIBOR US + 1.40%), 1.59%, 12/15/35(a)(b)

      4,680       4,587,172  

Bear Stearns Asset-Backed Securities I Trust

     

Series 2004-HE7, Class M2, (1 mo. LIBOR US + 1.73%),
1.91%, 08/25/34(a)

      192       190,067  

Series 2006-HE1, Class 1M4, (1 mo. LIBOR US + 0.68%),
0.87%, 12/25/35(a)

      1,688       2,065,714  

Series 2006-HE7, Class 1A2, (1 mo. LIBOR US + 0.17%),
0.35%, 09/25/36(a)

      2,753       3,331,141  

Series 2007-FS1, Class 1A3, (1 mo. LIBOR US + 0.17%),
0.35%, 05/25/35(a)

      950       1,019,900  

Series 2007-HE1, Class 21A2, (1 mo. LIBOR US + 0.16%),
0.34%, 01/25/37(a)

      580       567,805  

Series 2007-HE2, Class 1A4, (1 mo. LIBOR US + 0.32%),
0.50%, 03/25/37(a)

      1,004       709,405  

Series 2007-HE2, Class 22A, (1 mo. LIBOR US + 0.14%),
0.33%, 03/25/37(a)

      904       869,339  

Series 2007-HE2, Class 23A, (1 mo. LIBOR US + 0.14%),
0.33%, 03/25/37(a)

      1,671       1,728,922  

Series 2007-HE3, Class 1A3, (1 mo. LIBOR US + 0.25%),
0.43%, 04/25/37(a)

      1,100       1,176,458  

Series 2007-HE3, Class 1A4, (1 mo. LIBOR US + 0.35%),
0.53%, 04/25/37(a)

      6,110       4,973,540  

Bear Stearns Asset-Backed Securities Trust, Series 2005-4, Class M2, (1 mo. LIBOR US + 1.20%), 1.39%, 01/25/36(a)

      56       55,507  

Benefit Street Partners CLO II Ltd., Series 2013- IIA, Class A2R, (3 mo. LIBOR US + 1.75%), 2.97%, 07/15/29(a)(b)

      900       889,266  

Benefit Street Partners CLO III Ltd., Series 2013-IIIA, Class A1R, (3 mo. LIBOR US + 1.25%), 2.39%, 07/20/29(a)(b)

      750       740,950  

Benefit Street Partners CLO IV Ltd., Series 2014-IVA, Class A1RR, (3 mo. LIBOR US + 1.25%), 2.39%, 01/20/29(a)(b)

      7,830       7,722,560  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

Benefit Street Partners CLO V-B Ltd., Series 2018-5BA, Class A1A, (3 mo. LIBOR US + 1.09%), 2.23%, 04/20/31(a)(b)

    USD       4,360     $ 4,207,622  

Benefit Street Partners CLO VI Ltd.

     

Series 2015-VIA, Class A1R, (3 mo. LIBOR US + 1.24%), 2.38%, 10/18/29(a)(b)

      12,030       11,841,745  

Series 2015-VIA, Class A2R, (3 mo. LIBOR US + 1.72%), 2.86%, 10/18/29(a)(b)

      3,320       3,221,649  

Benefit Street Partners CLO VII Ltd.

     

Series 2015-VIIA, Class A1AR, (3 mo. LIBOR US + 0.78%),
1.92%, 07/18/27(a)(b)

      2,133       2,113,976  

Series 2015-VIIA, Class CR, (3 mo. LIBOR US + 2.40%), 3.54%, 07/18/27(a)(b)

      600       539,422  

Benefit Street Partners CLO VIII Ltd., Series 2015-8A, Class A1AR, (3 mo. LIBOR US + 1.10%), 2.24%, 01/20/31(a)(b)

      1,250       1,218,707  

Benefit Street Partners CLO X Ltd.

     

Series 2016-10A, Class A1R, (3 mo. LIBOR US + 1.14%),
2.36%, 01/15/29(a)(b)

      1,000       978,990  

Series 2016-10A, Class A2R, (3 mo. LIBOR US + 1.75%),
2.97%, 01/15/29(a)(b)

      600       584,381  

Black Diamond CLO Ltd., Series 2013-1A, Class A2R, (3 mo. LIBOR US + 1.45%), 2.59%, 02/06/26(a)(b)

      661       655,471  

BlueMountain CLO Ltd.

     

Series 2012-2A, Class AR2, (3 mo. LIBOR US + 1.05%), 1.43%, 11/20/28(a)(b)

      1,500       1,460,642  

Series 2013-1A, Class A1R2, (3 mo. LIBOR US + 1.23%),
2.37%, 01/20/29(a)(b)

      3,975       3,903,064  

Series 2013-2A, Class A1R, (3 mo. LIBOR US + 1.18%), 2.28%, 10/22/30(a)(b)

      6,345       6,171,485  

Series 2015-3A, Class A1R, (3 mo. LIBOR US + 1.00%), 2.14%, 04/20/31(a)(b)

      2,550       2,450,211  

BlueMountain CLO XXIX Ltd., Series 2020-29A, Class B, (3 mo. LIBOR US + 2.25%), 2.56%, 07/25/31(a)(b)

      750       750,000  

BlueMountain CLO XXV Ltd., Series 2019-25A, Class E, (3 mo. LIBOR US + 6.70%), 7.92%, 07/15/32(a)(b)

      1,000       885,499  

Bowman Park CLO Ltd., Series 2014-1A, Class AR, (3 mo. LIBOR US + 1.18%), 1.54%, 11/23/25(a)(b)

      1,604       1,596,383  

Brookside Mill CLO Ltd.

     

Series 2013-1A, Class BR, (3 mo. LIBOR US + 1.35%), 2.49%, 01/17/28(a)(b)

      500       477,463  

Series 2013-1A, Class DR, (3 mo. LIBOR US + 2.65%), 3.79%, 01/17/28(a)(b)

      1,073       946,456  

California Street CLO XII Ltd., Series 2013-12A, Class AR, (3 mo. LIBOR US + 1.03%), 2.25%, 10/15/25(a)(b)

      1,475       1,462,342  

Carlyle C17 CLO Ltd., Series C17A, Class A1AR, (3 mo. LIBOR US + 1.03%), 1.79%, 04/30/31(a)(b)

      7,620       7,441,307  

Carlyle Global Market Strategies CLO Ltd.

     

Series 2013-2A, Class AR, (3 mo. LIBOR US + 0.89%), 2.03%, 01/18/29(a)(b)

      1,490       1,445,696  

Series 2013-3A, Class A1AR, (3 mo. LIBOR US + 1.10%),
2.32%, 10/15/30(a)(b)

      250       245,332  

Series 2013-4A, Class A1RR, (3 mo. LIBOR US + 1.00%),
2.22%, 01/15/31(a)(b)

      1,865       1,796,240  

Series 2014-1A, Class A1R2,
(3 mo. LIBOR US + 0.97%),
2.11%, 04/17/31(a)(b)

      3,164       3,066,021  
 

 

 

  

  3


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

Carlyle Global Market Strategies CLO Ltd.

     

Series 2015-3A, Class A2R, (3 mo. LIBOR US + 1.60%),
2.49%, 07/28/28(a)(b)

    USD       2,470     $ 2,393,737  

Carlyle U.S. CLO Ltd.

     

Series 2016-4A, Class A2R, (3 mo. LIBOR US + 1.45%),
2.59%, 10/20/27(a)(b)

      750       720,300  

Series 2017-4A, Class A1, (3 mo. LIBOR US + 1.18%), 2.40%, 01/15/30(a)(b)

      4,620       4,526,134  

Series 2019-2A, Class A1, (3 mo. LIBOR US + 1.28%), 2.50%, 07/15/32(a)(b)

      4,000       3,921,387  

Carrington Mortgage Loan Trust

     

Series 2006-NC1, Class M2, (1 mo. LIBOR US + 0.42%),
0.61%, 01/25/36(a)

      610       409,749  

Series 2006-NC4, Class A3, (1 mo. LIBOR US + 0.16%),
0.34%, 10/25/36(a)

      806       751,863  

Series 2006-NC5, Class A3, (1 mo. LIBOR US + 0.15%),
0.34%, 01/25/37(a)

      3,978       2,988,577  

CarVal CLO II Ltd.

     

Series 2019-1A, Class C, (3 mo. LIBOR US + 3.25%), 4.39%, 04/20/32(a)(b)

      712       704,649  

Series 2019-1A, Class D, (3 mo. LIBOR US + 4.15%), 5.29%, 04/20/32(a)(b)

      1,000       957,514  

CarVal CLO III Ltd., Series 2019-2A, Class D, (3 mo. LIBOR US + 3.70%), 4.84%, 07/20/32(a)(b)

      2,000       1,834,717  

CarVal CLO Ltd., Series 2018-1A, Class D, (3 mo. LIBOR US + 2.89%), 4.07%, 07/16/31(a)(b)

      500       441,956  

Cascade MH Asset Trust, Series 2019-MH1, Class A, 4.00%, 11/25/44(b)(d)

      11,577       11,482,351  

CBAM Ltd.

     

Series 2017-1A, Class A1, (3 mo. LIBOR US + 1.25%), 2.39%, 07/20/30(a)(b)

      6,050       5,991,435  

Series 2017-2A, Class B1, (3 mo. LIBOR US + 1.75%), 2.89%, 10/17/29(a)(b)

      2,955       2,872,334  

Series 2017-3A, Class A, (3 mo. LIBOR US + 1.23%), 2.37%, 10/17/29(a)(b)

      3,780       3,717,492  

Series 2017-3A, Class B1, (3 mo. LIBOR US + 1.70%), 2.84%, 10/17/29(a)(b)

      1,000       968,414  

C-BASS TRUST, Series 2006-CB7, Class A4, (1 mo. LIBOR US + 0.16%), 0.34%, 10/25/36(a)

      599       456,830  

CDO Repack SPC Ltd., Series 2006-CLF1, Class D1, 0.00%, 05/20/30(b)

      485       507,988  

Cedar Funding II CLO Ltd.

     

Series 2013-1A, Class A1R, (3 mo. LIBOR US + 1.23%),
1.54%, 06/09/30(a)(b)

      1,511       1,483,653  

Series 2013-1A, Class BR, (3 mo. LIBOR US + 1.75%), 2.06%, 06/09/30(a)(b)

      2,450       2,386,117  

Cedar Funding IV CLO Ltd., Series 2014-4A, Class AR, (3 mo. LIBOR US + 1.23%), 2.27%, 07/23/30(a)(b)

      3,790       3,730,753  

Cedar Funding IX CLO Ltd., Series 2018-9A, Class A1, (3 mo. LIBOR US + 0.98%), 2.12%, 04/20/31(a)(b)

      940       912,929  

Cedar Funding V CLO Ltd., Series 2016-5A, Class A1R, (3 mo. LIBOR US + 1.10%), 2.24%, 07/17/31(a)(b)

      1,880       1,841,708  

Cedar Funding VI CLO Ltd., Series 2016-6A, Class AR, (3 mo. LIBOR US + 1.09%), 2.23%, 10/20/28(a)(b)

      15,035       14,748,493  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

Cedar Funding VIII CLO Ltd.

     

Series 2017-8A, Class A1, (3 mo. LIBOR US + 1.25%), 2.39%, 10/17/30(a)(b)

    USD       16,520     $   16,251,649  

Series 2017-8A, Class B, (3 mo. LIBOR US + 1.70%), 2.84%, 10/17/30(a)(b)

      2,627       2,536,939  

Series 2017-8A, Class C, (3 mo. LIBOR US + 2.25%), 3.39%, 10/17/30(a)(b)

      750       698,014  

Cent CLO Ltd., Series 2015-24A, Class A1R, (3 mo. LIBOR US + 1.07%), 2.29%, 10/15/26(a)(b)

      4,000       3,948,867  

CIFC Funding Ltd.

     

Series 2012-2RA, Class A2, (3 mo. LIBOR US + 1.25%), 2.39%, 01/20/28(a)(b)

      750       714,896  

Series 2013-1A, Class A2R, (3 mo. LIBOR US + 1.75%), 2.93%, 07/16/30(a)(b)

      500       487,188  

Series 2014-4RA, Class A1A, (3 mo. LIBOR US + 1.13%),
2.27%, 10/17/30(a)(b)

      26,820       26,341,512  

Series 2014-4RA, Class A2, (3 mo. LIBOR US + 1.65%), 2.79%, 10/17/30(a)(b)

      250       241,863  

Series 2015-2A, Class AR2, (3 mo. LIBOR US + 1.01%), 2.23%, 04/15/30(a)(b)(c)

      1,270       1,240,790  

Series 2015-2A, Class CR2, (3 mo. LIBOR US + 2.00%), 3.22%, 04/15/30(a)(b)

      2,904       2,760,251  

Series 2015-4A, Class A1R, (3 mo. LIBOR US + 1.15%), 2.29%, 10/20/27(a)(b)

      690       678,463  

Series 2017-1A, Class AR, (3 mo. LIBOR US + 1.01%), 2.12%, 04/23/29(a)(b)

      5,840       5,746,336  

Series 2017-1A, Class B, (3 mo. LIBOR US + 1.70%), 2.81%, 04/23/29(a)(b)

      2,910       2,832,260  

Series 2017-5A, Class C, (3 mo. LIBOR US + 2.85%), 3.99%, 11/16/30(a)(b)

      300       266,442  

Series 2018-1A, Class A, (3 mo. LIBOR US + 1.00%), 2.14%, 04/18/31(a)(b)

      1,834       1,776,882  

Series 2020-1A, Class B, (3 mo. LIBOR US + 2.30%), 0.00%, 07/15/32(a)(b)

      3,260       3,260,000  

Series 2020-1A, Class D, (3 mo. LIBOR US + 4.00%), 0.00%, 07/15/32(a)(b)

      1,120       1,120,000  

Citigroup Mortgage Loan Trust

     

Series 2007-AHL2, Class A3B, (1 mo. LIBOR US + 0.20%), 0.39%, 05/25/37(a)

      6,601       5,012,701  

Series 2007-AHL2, Class A3C, (1 mo. LIBOR US + 0.27%), 0.46%, 05/25/37(a)

      2,999       2,294,971  

Clear Creek CLO, Series 2015-1A, Class DR, (3 mo. LIBOR US + 2.95%), 4.09%, 10/20/30(a)(b)

      620       542,326  

Cloud Pass-Through Trust, Series 2019-1A, Class CLOU, 3.55%, 12/05/22(b)(d)

      14,398       14,625,653  

Conseco Finance Corp.

     

Series 1997-3, Class M1,
7.53%, 03/15/28(d)

      1,425       1,437,257  

Series 1997-6, Class M1,
7.21%, 01/15/29(d)

      266       271,209  

Series 1998-4, Class M1,
6.83%, 04/01/30(d)

      345       328,621  

Series 1998-8, Class A1,
6.28%, 09/01/30

      650       673,113  

Series 1998-8, Class M1,
6.98%, 09/01/30(d)

      2,521       2,279,528  

Series 1999-5, Class A5,
7.86%, 03/01/30(d)

      959       575,158  

Series 1999-5, Class A6,
7.50%, 03/01/30(d)

      1,028       594,475  

Series 2001-D, Class B1, (1 mo. LIBOR US + 2.50%), 2.69%, 11/15/32(a)

      2,002       1,852,305  

Conseco Finance Securitizations Corp.

     

Series 2000-1, Class A5,
8.06%, 09/01/29(d)

      1,602       584,387  

Series 2000-4, Class A6,
8.31%, 05/01/32(d)

      1,372       483,386  

Series 2000-5, Class A6, 7.96%, 05/01/31

      2,229       1,115,690  

Series 2000-5, Class A7, 8.20%, 05/01/31

      4,067       2,095,090  
 

 

 

4  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Corevest American Finance Trust,

     

Series 2020-2, Class A, 3.38%, 05/15/52(b)

    USD       1,948     $   2,074,081  

Countrywide Asset-Backed Certificates

     

Series 2004-5, Class A, (1 mo. LIBOR US + 0.90%), 1.09%, 10/25/34(a)

      535       517,890  

Series 2005-16, Class 1AF, 4.64%, 04/25/36(d)

      3,514       3,376,214  

Series 2005-17, Class 1AF4, 6.05%, 05/25/36(e)

      1,702       1,740,349  

Series 2006-11, Class 3AV2, (1 mo. LIBOR US + 0.16%), 0.34%, 09/25/46(a)

      213       205,734  

Series 2006-17, Class 2A2, (1 mo. LIBOR US + 0.15%), 0.34%, 03/25/47(a)

      227       220,053  

Series 2006-18, Class M1, (1 mo. LIBOR US + 0.30%), 0.48%, 03/25/37(a)

      6,144       3,951,388  

Series 2006-8, Class 2A3, (1 mo. LIBOR US + 0.16%), 0.34%, 12/25/35(a)

      536       526,615  

Series 2006-S10, Class A3, (1 mo. LIBOR US + 0.32%), 0.50%, 10/25/36(a)

      4,391       3,911,640  

Series 2006-S3, Class A4,
6.53%, 01/25/29(e)

      347       383,729  

Series 2006-SPS1, Class A, (1 mo. LIBOR US + 0.22%), 0.41%, 12/25/25(a)

      123       149,035  

Series 2007-12, Class 1A2, (1 mo. LIBOR US + 0.84%), 1.02%, 08/25/47(a)

      6,130       5,840,011  

Countrywide Asset-Backed Certificates Revolving Home Equity Loan Trust, Series 2004-U, Class 2A, (1 mo. LIBOR US + 0.27%), 0.46%, 03/15/34(a)

      695       644,933  

Credit Suisse First Boston Mortgage Securities Corp., Series 2001-MH29, Class B1, 8.10%, 09/25/31(d)

      1,750       1,828,220  

Credit-Based Asset Servicing & Securitization LLC

     

Series 2006-CB2, Class AF4, 3.26%, 12/25/36(e)

      429       402,544  

Series 2006-MH1, Class B1, 6.25%, 10/25/36(b)(e)

      852       884,653  

Series 2006-SL1, Class A2, 6.06%, 09/25/36(b)(e)

      3,063       366,326  

Series 2007-CB6, Class A4, (1 mo. LIBOR US + 0.34%), 0.52%, 07/25/37(a)(b)

      619       476,814  

Cumberland Park CLO Ltd.

     

Series 2015-2A, Class CR, (3 mo. LIBOR US + 1.80%), 2.94%, 07/20/28(a)(b)

      1,190       1,133,351  

Series 2015-2A, Class DR, (3 mo. LIBOR US + 2.70%), 3.84%, 07/20/28(a)(b)

      500       453,548  

CWHEQ Home Equity Loan Trust, Series 2006-S5, Class A5, 6.16%, 06/25/35

      381       414,149  

CWHEQ Revolving Home Equity Loan Resuritization Trust

     

Series 2006-RES, Class 4Q1B, (1 mo. LIBOR US + 0.30%),
0.49%, 12/15/33(a)(b)

      701       663,171  

Series 2006-RES, Class 5B1A, (1 mo. LIBOR US + 0.19%),
0.38%, 05/15/35(a)(b)

      289       274,655  

Series 2006-RES, Class 5B1B, (1 mo. LIBOR US + 0.19%),
0.38%, 05/15/35(a)(b)(c)

      177       164,858  

CWHEQ Revolving Home Equity Loan Trust

     

Series 2005-B, Class 2A, (1 mo. LIBOR US + 0.18%), 0.37%, 05/15/35(a)

      435       418,772  

Series 2006-C, Class 2A, (1 mo. LIBOR US + 0.18%), 0.37%, 05/15/36(a)

      2,500       2,374,671  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

CWHEQ Revolving Home Equity Loan Trust Series 2006-H, Class 1A, (1 mo. LIBOR US + 0.15%), 0.34%, 11/15/36(a)

    USD       1,570     $ 1,266,788  

Deer Creek CLO Ltd., Series 2017-1A, Class A, (3 mo. LIBOR US + 1.18%), 2.32%, 10/20/30(a)(b)

      5,561       5,477,627  

Dorchester Park CLO DAC, Series 2015-1A, Class BR, (3 mo. LIBOR US + 1.45%), 2.59%, 04/20/28(a)(b)

      3,064       2,959,449  

Dryden 33 Senior Loan Fund, Series 2014-33A, Class BR2, (3 mo. LIBOR US + 1.75%), 2.97%, 04/15/29(a)(b)

      250       244,132  

Dryden 36 Senior Loan Fund, Series 2014-36A, Class DR2, (3 mo. LIBOR US + 3.70%), 4.92%, 04/15/29(a)(b)

      750       697,958  

Dryden 43 Senior Loan Fund, Series 2016-43A, Class AR, (3 mo. LIBOR US + 1.14%), 2.28%, 07/20/29(a)(b)

      7,230       7,112,082  

Dryden 53 CLO Ltd., Series 2017-53A, Class A, (3 mo. LIBOR US + 1.12%), 2.34%, 01/15/31(a)(b)

      18,720       18,305,322  

Dryden 76 CLO Ltd., Series 2019-76A, Class A1, (3 mo. LIBOR US + 1.33%), 2.47%, 10/20/32(a)(b)

      750       740,280  

Dryden 77 CLO Ltd., Series 2020-77A, Class D1, (3 mo. LIBOR US + 5.14%), 5.51%, 05/20/31(a)(b)

      750       750,881  

Dryden XXV Senior Loan Fund

     

Series 2012-25A, Class ARR, (3 mo. LIBOR US + 0.90%),
2.12%, 10/15/27(a)(b)

      10,739         10,479,389  

Series 2012-25A, Class CRR, (3 mo. LIBOR US + 1.85%),
3.07%, 10/15/27(a)(b)

      1,340       1,271,004  

Dryden XXVI Senior Loan Fund, Series 2013- 26A, Class AR, (3 mo. LIBOR US + 0.90%), 2.12%, 04/15/29(a)(b)

      1,170       1,142,582  

Dryden XXVIII Senior Loan Fund, Series 2013- 28A, Class A1LR, (3 mo. LIBOR US + 1.20%), 1.59%, 08/15/30(a)(b)

      9,085       8,877,307  

Eaton Vance CLO Ltd.

     

Series 2013-1A, Class A1RR, (3 mo. LIBOR US + 1.16%),
2.38%, 01/15/28(a)(b)

      1,280       1,258,792  

Series 2013-1A, Class A2RR, (3 mo. LIBOR US + 1.85%),
3.07%, 01/15/28(a)(b)

      1,150       1,126,659  

Series 2018-1A, Class C, (3 mo. LIBOR US + 2.20%),
3.42%, 10/15/30(a)(b)

      3,550       3,417,864  

Elm CLO Ltd.

     

Series 2014-1A, Class ARR, (3 mo. LIBOR US + 1.17%),
2.31%, 01/17/29(a)(b)

      18,150       17,836,159  

Series 2014-1A, Class BRR, (3 mo. LIBOR US + 1.75%),
2.89%, 01/17/29(a)(b)

      1,950       1,908,297  

Elmwood CLO I Ltd., Series 2019-1A, Class B, (3 mo. LIBOR US + 1.90%), 3.04%, 04/20/30(a)(b)

      1,500       1,471,843  

Elmwood CLO II Ltd., Series 2019-2A, Class A, (3 mo. LIBOR US + 1.45%), 2.59%, 04/20/31(a)(b)

      250       248,822  

Elmwood CLO V Ltd.

     

Series 2020-2A, Class B, (3 mo. LIBOR US + 2.20%), 0.00%, 07/24/31(a)(b)

      2,880       2,880,000  

Series 2020-2A, Class C, (3 mo. LIBOR US + 2.75%), 0.00%, 07/24/31(a)(b)

      2,880       2,880,000  
 

 

 

  5


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Finance of America HECM Buyout, Series 2020- HB1, Class M5, 6.00%, 02/25/30(b)(c)(d)

    USD       1,758     $ 1,291,075  

First Franklin Mortgage Loan Trust

     

Series 2004-FFH3, Class M3, (1 mo. LIBOR US + 1.05%),
1.23%, 10/25/34(a)

      1,000       880,328  

Series 2006-FF13, Class A1, (1 mo. LIBOR US + 0.12%),
0.30%, 10/25/36(a)

      2,457       1,810,067  

Series 2006-FF16, Class 2A3, (1 mo. LIBOR US + 0.14%),
0.33%, 12/25/36(a)

      12,397       7,055,597  

Series 2006-FF17, Class A5, (1 mo. LIBOR US + 0.15%),
0.34%, 12/25/36(a)

      17,089       15,033,711  

Series 2006-FFH1, Class M2, (1 mo. LIBOR US + 0.40%),
0.59%, 01/25/36(a)

      2,649       1,586,067  

Flatiron CLO Ltd., Series 2015-1A, Class AR, (3 mo. LIBOR US + 0.89%), 2.11%, 04/15/27(a)(b)

      1,796       1,783,332  

Fremont Home Loan Trust, Series 2006-3, Class 1A1, (1 mo. LIBOR US + 0.14%), 0.33%, 02/25/37(a)

      2,966       2,260,443  

Galaxy XV CLO Ltd., Series 2013-15A, Class AR, (3 mo. LIBOR US + 1.20%), 2.42%, 10/15/30(a)(b)

      1,350       1,322,277  

Galaxy XXIII CLO Ltd., Series 2017-23A, Class A, (3 mo. LIBOR US + 1.28%), 2.30%, 04/24/29(a)(b)

      2,603       2,562,985  

Galaxy XXIX CLO Ltd.

     

Series 2018-29A, Class B, (3 mo. LIBOR US + 1.40%), 1.79%, 11/15/26(a)(b)

      250       241,861  

Series 2018-29A, Class C, (3 mo. LIBOR US + 1.68%), 2.07%, 11/15/26(a)(b)

      1,470       1,383,374  

GE-WMC Asset-Backed Pass-Through Certificates, Series 2005-2, Class A2C, (1 mo. LIBOR US + 0.50%), 0.68%, 12/25/35(a)

      295       288,027  

Gilbert Park CLO Ltd.

     

Series 2017-1A, Class C, (3 mo. LIBOR US + 1.95%), 3.17%, 10/15/30(a)(b)

      3,110       2,956,389  

Series 2017-1A, Class D, (3 mo. LIBOR US + 2.95%), 4.17%, 10/15/30(a)(b)

      4,292       3,868,603  

GoldenTree Loan Management U.S. CLO 5 Ltd., Series 2019-5A, Class A, (3 mo. LIBOR US + 1.30%), 2.44%, 10/20/32(a)(b)

      1,750       1,717,236  

GoldenTree Loan Management U.S. CLO 7 Ltd., Series 2020-7A, Class D, (3 mo. LIBOR US + 2.98%), 3.39%, 04/20/31(a)(b)

      2,240       2,064,852  

GoldenTree Loan Opportunities IX Ltd., Series 2014-9A, Class AR2, (3 mo. LIBOR US + 1.11%), 1.95%, 10/29/29(a)(b)

      1,830       1,797,529  

GoldenTree Loan Opportunities X Ltd., Series 2015-10A, Class AR, (3 mo. LIBOR US + 1.12%), 2.26%, 07/20/31(a)(b)

      4,688       4,590,782  

GoldenTree Loan Opportunities XI Ltd., Series 2015-11A, Class AR2, (3 mo. LIBOR US + 1.07%), 2.21%, 01/18/31(a)(b)

      3,749       3,681,078  

GoldentTree Loan Management U.S. CLO 1 Ltd.

     

Series 2017-1A, Class CR, (3 mo. LIBOR US + 1.85%), 2.99%, 04/20/29(a)(b)

      3,120       3,037,431  

Series 2017-1A, Class DR, (3 mo. LIBOR US + 2.65%), 3.79%, 04/20/29(a)(b)

      1,800       1,606,577  

Greenpoint Manufactured Housing

     

Series 1999-5, Class M1B, 8.29%, 12/15/29(d)

      870       909,538  

Series 1999-5, Class M2, 9.23%, 12/15/29(d)

      1,033       868,607  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Grippen Park CLO Ltd., Series 2017-1A, Class A, (3 mo. LIBOR US + 1.26%), 2.40%, 01/20/30(a)(b)

    USD       1,123     $ 1,107,170  

GSAA Home Equity Trust

     

Series 2005-14, Class 1A2, (1 mo. LIBOR US + 0.35%),
0.53%, 12/25/35(a)

      836       322,758  

Series 2006-4, Class 1A1,
3.60%, 03/25/36(d)

      2,463       1,916,646  

Series 2006-5, Class 2A1, (1 mo. LIBOR US + 0.07%),
0.26%, 03/25/36(a)

      14       6,457  

Series 2007-2, Class AF3,
5.92%, 03/25/37(d)

      504       145,742  

GSAMP Trust

     

Series 2007-H1, Class A1B, (1 mo. LIBOR US + 0.20%), 0.39%, 01/25/47(a)

      972       574,360  

Series 2007-HS1, Class M6, (1 mo. LIBOR US + 2.25%), 2.43%, 02/25/47(a)

      1,300       1,271,780  

Gulf Stream Meridian 1 Ltd., Series 2020-IA, Class A1, (3 mo. LIBOR US + 1.37%), 3.00%, 04/15/33(a)(b)

      5,820       5,711,585  

Gulf Stream Meridian 2 Ltd., Series 2020-IIA, Class C, (3 mo. LIBOR US + 4.85%), 5.13%, 10/15/29(a)(b)

      1,500       1,488,936  

Halcyon Loan Advisors Funding Ltd.

     

Series 2014-1A, Class A1R, (3 mo. LIBOR US + 1.13%), 2.27%, 04/18/26(a)(b)

      4       4,040  

Series 2015-2A, Class AR, (3 mo. LIBOR US + 1.08%), 2.07%, 07/25/27(a)(b)

      8,343       8,235,536  

Highbridge Loan Management Ltd.

     

Series 12A-18, Class A1B, (3 mo. LIBOR US + 1.25%), 2.39%, 07/18/31(a)(b)

      750       722,815  

Series 6A-2015, Class A1R, (3 mo. LIBOR US + 1.00%), 1.54%, 02/05/31(a)(b)

      11,313       11,010,958  

Series 7A-2015, Class BR, (3 mo. LIBOR US + 1.18%), 1.57%, 03/15/27(a)(b)

      500       478,737  

Home Equity Asset Trust, Series 2007-1, Class 2A3, (1 mo. LIBOR US + 0.15%), 0.34%, 05/25/37(a)

      2,490       2,044,057  

Home Equity Mortgage Loan Asset-Backed Trust

     

Series 2004-A, Class M2, (1 mo. LIBOR US + 2.03%), 2.21%, 07/25/34(a)

      549       538,414  

Series 2007-A, Class 2A2, (1 mo. LIBOR US + 0.19%), 0.37%, 04/25/37(a)

      1,932       1,364,990  

Home Equity Mortgage Trust, Series 2006-2, Class 1A1, 5.87%, 07/25/36(e)

      2,364       643,566  

Home Loan Mortgage Loan Trust, Series 2005-1, Class A3, (1 mo. LIBOR US + 0.72%), 0.91%, 04/15/36(a)

      1,002       924,933  

HPS Loan Management Ltd.

     

Series 10A-16, Class A1R, (3 mo. LIBOR US + 1.14%), 2.28%, 01/20/28(a)(b)

      4,550       4,446,043  

Series 14A-19, Class A1, (3 mo. LIBOR US + 1.27%), 2.26%, 07/25/30(a)(b)

      1,300       1,279,331  

ICG U.S. CLO Ltd., Series 2015-1A, Class A1R, (3 mo. LIBOR US + 1.14%), 2.28%, 10/19/28(a)(b)

      5,420       5,338,187  

Invitation Homes Trust

     

Series 2018-SFR3, Class A, (1 mo. LIBOR US + 1.00%), 1.19%, 07/17/37(a)(b)

      2,740       2,719,171  

Series 2018-SFR3, Class E, (1 mo. LIBOR US + 2.00%), 2.19%, 07/17/37(a)(b)

      2,468       2,346,313  

Irwin Home Equity Loan Trust, Series 2006-3, Class 2A3, 6.53%, 09/25/37(b)(e)

      444       437,083  
 

 

 

6  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

JPMorgan Mortgage Acquisition Trust, Series 2006-CW1, Class M1, (1 mo. LIBOR US + 0.27%), 0.46%, 05/25/36(a)

    USD       1,170     $ 1,084,971  

Kayne CLO II Ltd., Series 2018-2A, Class A, (3 mo. LIBOR US + 1.24%), 2.46%, 10/15/31(a)(b)

      500       494,009  

KKR CLO 16 Ltd., Series 16, Class A1R, (3 mo. LIBOR US + 1.25%), 2.39%, 01/20/29(a)(b)

      7,421       7,301,678  

LCM 26 Ltd., Series 26A, Class A1, (3 mo. LIBOR US + 1.07%), 2.21%, 01/20/31(a)(b)

      8,120       7,934,871  

LCM XIV LP, Series 14A, Class AR, (3 mo. LIBOR US + 1.04%), 2.18%, 07/20/31(a)(b)

      500       484,940  

LCM XX LP

     

Series 20A, Class AR, (3 mo. LIBOR US + 1.04%), 2.18%, 10/20/27(a)(b)

      3,740       3,694,081  

Series 20A, Class BR, (3 mo. LIBOR US + 1.55%), 2.69%, 10/20/27(a)(b)

      250       242,046  

LCM XXI LP, Series 21A, Class AR, (3 mo. LIBOR US + 0.88%), 2.02%, 04/20/28(a)(b)

      3,430       3,379,690  

LCM XXIV Ltd., Series 24A, Class A, (3 mo. LIBOR US + 1.31%), 2.45%, 03/20/30(a)(b)

      500       489,850  

Legacy Mortgage Asset Trust

     

Series 2019-SL2, Class A, 3.38%, 02/25/59(b)(c)(d)

      8,817       8,111,850  

Series 2019-SL2, Class B, 0.00%, 02/25/59(b)(c)

      2,432       432,885  

Series 2019-SL2, Class M, 4.25%, 02/25/59(b)(c)(d)

      2,083       1,645,570  

Lehman ABS Manufactured Housing Contract Trust

     

Series 2001-B, Class M1, 6.63%, 04/15/40(d)

      4,469       4,720,628  

Series 2002-A, Class C, 0.00%, 06/15/33

      372       318,508  

Lehman ABS Mortgage Loan Trust, Series 2007-1, Class 2A1, (1 mo. LIBOR US + 0.09%), 0.28%, 06/25/37(a)(b)

      442       325,469  

Lendmark Funding Trust, Series 2019-2A, Class A, 2.78%, 04/20/28(b)

      12,230       12,230,928  

Litigation Fee Residual Funding LLC, Series 2015-1, Class A,
4.00%, 10/01/27(b)(c)

      2,233       2,227,302  

LoanCore Issuer Ltd., Series 2018-CRE1, Class A, (1 mo. LIBOR US + 1.13%), 1.32%, 05/15/28(a)(b)

      2,510       2,488,045  

Long Beach Mortgage Loan Trust

     

Series 2006-5, Class 2A3, (1 mo. LIBOR US + 0.15%), 0.34%, 06/25/36(a)

      3,792       2,062,919  

Series 2006-7, Class 2A3, (1 mo. LIBOR US + 0.16%), 0.34%, 08/25/36(a)

      6,421       3,181,476  

Series 2006-9, Class 2A2, (1 mo. LIBOR US + 0.11%), 0.29%, 10/25/36(a)

      1,537       678,494  

Series 2006-9, Class 2A4, (1 mo. LIBOR US + 0.23%), 0.41%, 10/25/36(a)

      1,548       710,220  

Madison Avenue Manufactured Housing Contract Trust, Series 2002-A, Class B2, (1 mo. LIBOR US + 3.25%), 3.43%, 03/25/32(a)

      1,105       1,102,122  

Madison Park Funding X Ltd.

     

Series 2012-10A, Class AR2, (3 mo. LIBOR US + 1.22%),
2.36%, 01/20/29(a)(b)

      10,710       10,521,957  

Series 2012-10A, Class BR2, (3 mo. LIBOR US + 1.80%),
2.94%, 01/20/29(a)(b)

      250       241,250  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Madison Park Funding XI Ltd., Series 2013-11A, Class AR, (3 mo. LIBOR US + 1.16%), 2.20%, 07/23/29(a)(b)

    USD       4,830     $ 4,753,880  

Madison Park Funding XIII Ltd.

     

Series 2014-13A, Class AR2, (3 mo. LIBOR US + 0.95%),
2.09%, 04/19/30(a)(b)

      7,780       7,577,777  

Series 2014-13A, Class BR2, (3 mo. LIBOR US + 1.50%),
2.64%, 04/19/30(a)(b)

      4,540       4,381,320  

Madison Park Funding XIX Ltd.

     

Series 2015-19A, Class A1R2, (3 mo. LIBOR US + 0.92%),
2.02%, 01/22/28(a)(b)

      7,698       7,573,537  

Series 2015-19A, Class A2R2, (3 mo. LIBOR US + 1.50%),
2.60%, 01/22/28(a)(b)

      1,000       965,030  

Madison Park Funding XVI Ltd., Series 2015-16A, Class A2R, (3 mo. LIBOR US + 1.90%), 3.04%, 04/20/26(a)(b)

      500       490,006  

Madison Park Funding XVII Ltd., Series 2015-17A, Class B1R, (3 mo. LIBOR US + 1.75%), 2.86%, 07/21/30(a)(b)

      1,770       1,724,516  

Madison Park Funding XVIII Ltd., Series 2015- 18A, Class A1R, (3 mo. LIBOR US + 1.19%), 2.30%, 10/21/30(a)(b)

      14,970       14,698,792  

Madison Park Funding XXII Ltd., Series 2016-22A, Class A1R, (3 mo. LIBOR US + 1.26%), 2.48%, 01/15/33(a)(b)

      3,000       2,895,000  

Madison Park Funding XXIII Ltd.

     

Series 2017-23A, Class A, (3 mo. LIBOR US + 1.21%), 2.20%, 07/27/30(a)(b)

      250       245,895  

Series 2017-23A, Class B, (3 mo. LIBOR US + 1.70%), 2.69%, 07/27/30(a)(b)

      500       485,374  

Madison Park Funding XXVI Ltd., Series 2017- 26A, Class AR, (3 mo. LIBOR US + 1.20%), 2.04%, 07/29/30(a)(b)

      11,115       10,885,114  

Marble Point CLO XI Ltd., Series 2017-2A, Class A, (3 mo. LIBOR US + 1.18%), 2.32%, 12/18/30(a)(b)

      2,000       1,948,428  

Mariner CLO 5 Ltd., Series 2018-5A, Class A, (3 mo. LIBOR US + 1.11%), 2.10%, 04/25/31(a)(b)

      3,550       3,470,153  

Mariner CLO LLC

     

Series 2015-1A, Class BR2, (3 mo. LIBOR US + 1.50%), 2.64%, 04/20/29(a)(b)

      7,152       6,887,308  

Series 2015-1A, Class CR2, (3 mo. LIBOR US + 1.90%), 3.04%, 04/20/29(a)(b)

      2,000       1,913,360  

Series 2016-3A, Class BR2, (3 mo. LIBOR US + 1.50%), 2.54%, 07/23/29(a)(b)(c)

      1,478       1,443,858  

Series 2016-3A, Class CR2, (3 mo. LIBOR US + 2.05%), 3.09%, 07/23/29(a)(b)(c)

      5,162       4,967,909  

Series 2016-3A, Class DR2, (3 mo. LIBOR US + 2.90%), 3.94%, 07/23/29(a)(b)(c)

      500       464,900  

Series 2017-4A, Class A, (3 mo. LIBOR US + 1.21%), 2.20%, 10/26/29(a)(b)

      1,800       1,771,483  

Mariner Finance Issuance Trust

     

Series 2019-AA, Class A,
2.96%, 07/20/32(b)

      14,870       14,660,812  

Series 2019-AA, Class B,
3.51%, 07/20/32(b)

      2,420       2,335,441  

Series 2019-AA, Class C,
4.01%, 07/20/32(b)

      2,150       2,039,850  

MASTR Asset-Backed Securities Trust

     

Series 2006-AM2, Class A4, (1 mo. LIBOR US + 0.26%), 0.45%, 06/25/36(a)(b)

      1,591       1,437,163  

Series 2007-HE1, Class A4, (1 mo. LIBOR US + 0.28%), 0.47%, 05/25/37(a)

      1,318       1,029,351  
 

 

 

  7


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

MASTR Specialized Loan Trust, Series 2006-3, Class A, (1 mo. LIBOR US + 0.26%), 0.45%, 06/25/46(a)(b)

    USD       509     $ 471,722  

Merrill Lynch First Franklin Mortgage Loan Trust, Series 2007-2, Class A2C, (1 mo. LIBOR US + 0.24%), 0.42%, 05/25/37(a)

      1,905       1,315,537  

Merrill Lynch Mortgage Investors Trust

     

Series 2006-OPT1, Class M1, (1 mo. LIBOR US + 0.26%), 0.45%, 08/25/37(a)

      384       181,220  

Series 2006-RM3, Class A2B, (1 mo. LIBOR US + 0.09%), 0.28%, 06/25/37(a)

      934       251,967  

MidOcean Credit CLO III, Series 2014-3A, Class A3A2, (3 mo. LIBOR US + 0.97%), 2.08%, 04/21/31(a)(b)

      2,010       1,934,331  

Mill City Solar Loan Ltd., Series 2019-2GS, Class A, 3.69%, 07/20/43(b)

      7,815       7,894,585  

Morgan Stanley ABS Capital I, Inc. Trust

     

Series 2005-HE1, Class A2MZ, (1 mo. LIBOR US + 0.60%), 0.78%, 12/25/34(a)

      820       739,751  

Series 2005-HE5, Class M4, (1 mo. LIBOR US + 0.87%), 1.05%, 09/25/35(a)

      3,756       1,930,758  

Morgan Stanley Mortgage Loan Trust, Series 2007-9SL, Class A, (1 mo. LIBOR US + 0.32%), 0.50%, 07/25/37(a)

      1,083       1,018,254  

Mosaic Solar Loan Trust

     

Series 2018-2GS, Class A,
4.20%, 02/22/44(b)

      3,070       3,176,547  

Series 2019-2A, Class A, 2.88%, 09/20/40(b)

      1,111       1,104,305  

Series 2020-1A, Class A, 2.10%, 04/20/46(b)

      1,700       1,713,190  

Series 2020-1A, Class B, 3.10%, 04/20/46(b)

      2,570       2,590,755  

Mountain Hawk II CLO Ltd., Series 2013-2A, Class BR, (3 mo. LIBOR US + 1.60%), 2.74%, 07/20/24(a)(b)

      1,884       1,874,421  

MP CLO III Ltd., Series 2013-1A, Class AR, (3 mo. LIBOR US + 1.25%),
2.39%, 10/20/30(a)(b)

      2,820       2,715,865  

MP CLO VII Ltd.

     

Series 2015-1A, Class ARR, (3 mo. LIBOR US + 1.08%), 2.22%, 10/18/28(a)(b)

      490       480,088  

Series 2015-1A, Class BRR, (3 mo. LIBOR US + 1.60%), 2.74%, 10/18/28(a)(b)

      750       721,033  

MP CLO VIII Ltd.

     

Series 2015-2A, Class AR, (3 mo. LIBOR US + 0.91%), 1.80%, 10/28/27(a)(b)

      5,553       5,442,095  

Series 2015-2A, Class BR, (3 mo. LIBOR US + 1.42%), 2.31%, 10/28/27(a)(b)

      3,250       3,138,141  

Nationstar Home Equity Loan Trust, Series 2007-C, Class 2AV3, (1 mo. LIBOR US + 0.18%), 0.36%, 06/25/37(a)

      69       69,000  

Navient Private Education Loan Trust, Series 2014-AA, Class B, 3.50%, 08/15/44(b)

      6,000       6,114,268  

Navient Private Education Refi Loan Trust, Series 2020-A, Class A2B, (1 mo. LIBOR US + 0.90%), 1.09%, 11/15/68(a)(b)

      2,410       2,356,936  

Neuberger Berman CLO XVII Ltd.

     

Series 2014-17A, Class BR2, (3 mo. LIBOR US + 1.50%), 2.60%, 04/22/29(a)(b)

      1,500       1,442,568  

Series 2014-17A, Class CR2, (3 mo. LIBOR US + 2.00%), 3.10%, 04/22/29(a)(b)

      1,900       1,816,623  

Neuberger Berman CLO XVI-S Ltd., Series 2017-16SA, Class A, (3 mo. LIBOR US + 0.85%), 2.07%, 01/15/28(a)(b)

      2,648       2,618,542  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Neuberger Berman CLO XX Ltd.

     

Series 2015-20A, Class AR, (3 mo. LIBOR US + 0.80%), 2.02%, 01/15/28(a)(b)

    USD       984     $ 964,887  

Series 2015-20A, Class BR, (3 mo. LIBOR US + 1.25%), 2.47%, 01/15/28(a)(b)

      750       720,135  

Neuberger Berman CLO XXIII Ltd., Series 2016- 23A, Class BR, (3 mo. LIBOR US + 1.55%), 2.69%, 10/17/27(a)(b)

      400       384,523  

Neuberger Berman Loan Advisers CLO 26 Ltd., Series 2017-26A, Class A, (3 mo. LIBOR US + 1.17%), 2.31%, 10/18/30(a)(b)

      5,520       5,415,272  

Neuberger Berman Loan Advisers CLO 37 Ltd., Series 2020-37A, Class B, (3 mo. LIBOR US + 2.20%),
2.37%, 07/20/31(a)(b)(c)

      1,000       1,000,000  

Nomura Asset Acceptance Corp. Alternative Loan Trust, Series 2006-S5, Class A1, (1 mo. LIBOR US + 0.40%),
0.59%, 10/25/36(a)(b)

      257       237,183  

Oaktree CLO Ltd.

     

Series 2014-1A, Class A2R, (3 mo. LIBOR US + 1.85%), 2.28%, 05/13/29(a)(b)

      1,840       1,738,447  

Series 2015-1A, Class A1R, (3 mo. LIBOR US + 0.87%), 2.01%, 10/20/27(a)(b)

      467       459,217  

Oakwood Mortgage Investors, Inc.

     

Series 2001-D, Class A2,
5.26%, 01/15/19(d)

      700       481,070  

Series 2001-D, Class A4,
6.93%, 09/15/31(d)

      445       350,583  

Series 2002-B, Class M1,
7.62%, 06/15/32(d)

      4,443       3,554,546  

OCP CLO Ltd.

     

Series 2013-4A, Class A2RR, (3 mo. LIBOR US + 1.45%),
2.47%, 04/24/29(a)(b)

      2,500       2,396,966  

Series 2013-4A, Class BRR, (3 mo. LIBOR US + 1.90%), 2.92%, 04/24/29(a)(b)

      4,618       4,418,789  

Series 2013-4A, Class CRR, (3 mo. LIBOR US + 3.00%), 4.02%, 04/24/29(a)(b)

      3,000       2,755,859  

Series 2014-5A, Class A1R, (3 mo. LIBOR US + 1.08%), 2.07%, 04/26/31(a)(b)

      660       642,235  

Series 2014-7A, Class A2RR, (3 mo. LIBOR US + 1.65%),
2.79%, 07/20/29(a)(b)

      750       726,393  

Series 2015-10A, Class A1R, (3 mo. LIBOR US + 0.82%),
1.81%, 10/26/27(a)(b)

      621       612,548  

Series 2015-10A, Class BR, (3 mo. LIBOR US + 1.85%), 2.84%, 10/26/27(a)(b)

      1,120       1,074,318  

Series 2016-12A, Class A1R, (3 mo. LIBOR US + 1.12%),
2.26%, 10/18/28(a)(b)

      10,736       10,579,900  

Series 2016-12A, Class A2R, (3 mo. LIBOR US + 1.60%),
2.74%, 10/18/28(a)(b)

      500       486,987  

Series 2017-13A, Class A1A, (3 mo. LIBOR US + 1.26%), 2.48%, 07/15/30(a)(b)

      9,170       9,079,525  

Series 2017-14A, Class B, (3 mo. LIBOR US + 1.95%), 2.33%, 11/20/30(a)(b)

      500       475,898  

Series 2020-19A, Class B, (3 mo. LIBOR US + 2.50%), 2.82%, 07/20/31(a)(b)

      500       498,111  

Series 2020-19A, Class C, (3 mo. LIBOR US + 2.95%), 3.27%, 07/20/31(a)(b)(c)

      650       650,000  

Series 2020-19A, Class D, (3 mo. LIBOR US + 4.47%), 4.79%, 07/20/31(a)(b)(c)

      525       514,500  

Octagon Investment Partners 18-R Ltd., Series 2018-18A, Class A1A, (3 mo. LIBOR US + 0.96%), 2.14%, 04/16/31(a)(b)

      7,300       7,100,148  

Octagon Investment Partners 32 Ltd., Series 2017-1A, Class B1, (3 mo. LIBOR US + 1.70%), 2.92%, 07/15/29(a)(b)

      1,650       1,602,227  
 

 

 

8  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Octagon Investment Partners 33 Ltd., Series 2017-1A, Class A1, (3 mo. LIBOR US + 1.19%), 2.33%, 01/20/31(a)(b)

    USD       1,310     $ 1,284,005  

Octagon Investment Partners 46 Ltd.

     

Series 2020-2A, Class B, (3 mo. LIBOR US + 2.20%), 0.00%, 07/15/33(a)(b)

      3,290       3,290,000  

Series 2020-2A, Class D, (3 mo. LIBOR US + 4.60%), 0.00%, 07/15/33(a)(b)

      2,470       2,470,000  

Octagon Investment Partners XIX Ltd., Series 2014-1A, Class AR, (3 mo. LIBOR US + 1.10%), 2.32%, 04/15/26(a)(b)

      34       34,210  

Octagon Investment Partners XVI Ltd., Series 2013-1A, Class A1R, (3 mo. LIBOR US + 1.02%), 2.16%, 07/17/30(a)(b)

      3,580       3,488,481  

Octagon Investment Partners XVII Ltd., Series 2013-1A, Class A1R2, (3 mo. LIBOR US + 1.00%), 1.99%, 01/25/31(a)(b)

      7,240       7,043,298  

Octagon Investment Partners XXIII Ltd., Series 2015-1A, Class CR, (3 mo. LIBOR US + 1.85%), 3.07%, 07/15/27(a)(b)

      2,840       2,710,128  

OFSI Fund VI Ltd., Series 2014-6A, Class A2R, (3 mo. LIBOR US + 1.13%), 2.35%, 03/20/25(a)(b)

      384       383,758  

OFSI Fund VII Ltd., Series 2014-7A, Class AR, (3 mo. LIBOR US + 0.90%), 2.04%, 10/18/26(a)(b)

      392       390,403  

OHA Credit Funding 3 Ltd., Series 2019-3A, Class B1, (3 mo. LIBOR US + 1.80%), 2.94%, 07/20/32(a)(b)

      2,989       2,906,061  

OHA Credit Partners IX Ltd., Series 2013-9A, Class E, (3 mo. LIBOR US + 5.00%), 6.14%, 10/20/25(a)(b)

      2,500       2,376,550  

OHA Loan Funding Ltd.

     

Series 2013-2A, Class AR, (3 mo. LIBOR US + 1.04%), 1.40%, 05/23/31(a)(b)

      6,219       6,053,344  

Series 2015-1A, Class A1R2, (3 mo. LIBOR US + 1.34%),
1.73%, 11/15/32(a)(b)

      1,630       1,596,417  

OneMain Financial Issuance Trust

     

Series 2019-2A, Class A,
3.14%, 10/14/36(b)

      14,760       15,580,337  

Series 2020-1A, Class A,
3.84%, 05/14/32(b)

      12,330       12,776,988  

Option One Mortgage Acceptance Corp. Asset- Backed Certificates, Series 2003-4, Class A2, (1 mo. LIBOR US + 0.64%), 0.83%, 07/25/33(a)

      852       784,273  

Option One Mortgage Loan Trust

     

Series 2006-3, Class 1A1, (1 mo. LIBOR US + 0.14%), 0.33%, 02/25/37(a)

      1,260       910,577  

Series 2007-CP1, Class 2A3, (1 mo. LIBOR US + 0.21%),
0.40%, 03/25/37(a)

      2,360       1,473,573  

Series 2007-FXD1, Class 1A1,
5.87%, 01/25/37(e)

      2,647       2,483,554  

Series 2007-FXD1, Class 2A1,
5.87%, 01/25/37(e)

      6,815       6,413,598  

Series 2007-FXD2, Class 1A1,
5.82%, 03/25/37(e)

      3,639       3,743,988  

Origen Manufactured Housing Contract Trust

     

Series 2001-A, Class M1,
7.82%, 03/15/32(d)

      1,455       1,412,883  

Series 2007-B, Class A1, (1 mo. LIBOR US + 1.20%), 1.39%, 10/15/37(a)(b)(c)

      1,867       1,778,784  

Ownit Mortgage Loan Trust Series,

     

Series 2006-2, Class A2C,
6.00%, 01/25/37(e)

      1,990       1,894,001  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

OZLM Funding III Ltd., Series 2013-3A, Class BRR, (3 mo. LIBOR US + 2.70%), 3.80%, 01/22/29(a)(b)

    USD       4,720     $ 4,636,754  

OZLM Funding IV Ltd.

     

Series 2013-4A, Class A1R, (3 mo. LIBOR US + 1.25%), 2.35%, 10/22/30(a)(b)

      13,172       12,786,145  

Series 2013-4A, Class A2R, (3 mo. LIBOR US + 1.70%), 2.80%, 10/22/30(a)(b)

      2,120       2,032,444  

OZLM Funding Ltd., Series 2012-1A, Class A2R2, (3 mo. LIBOR US + 1.85%), 2.95%, 07/22/29(a)(b)

      495       485,179  

OZLM VI Ltd., Series 2014-6A, Class A2AS, (3 mo. LIBOR US + 1.75%),
2.89%, 04/17/31(a)(b)

      900       867,003  

OZLM VIII Ltd., Series 2014-8A, Class BRR, (3 mo. LIBOR US + 2.20%),
3.34%, 10/17/29(a)(b)

      1,160       1,107,018  

OZLM XII Ltd., Series 2015-12A, Class A2R, (3 mo. LIBOR US + 1.60%),
2.36%, 04/30/27(a)(b)

      500       488,649  

OZLM XIV Ltd., Series 2015-14A, Class A2AR, (3 mo. LIBOR US + 1.70%), 2.92%, 01/15/29(a)(b)

      5,770       5,607,132  

OZLM XIX Ltd., Series 2017-19A, Class A1, (3 mo. LIBOR US + 1.22%),
2.44%, 11/22/30(a)(b)

      2,160       2,094,949  

OZLM XVIII Ltd., Series 2018-18A, Class A, (3 mo. LIBOR US + 1.02%), 2.24%, 04/15/31(a)(b)

      2,620       2,494,206  

OZLM XX Ltd., Series 2018-20A, Class A2, (3 mo. LIBOR US + 1.65%),
2.79%, 04/20/31(a)(b)

      600       577,679  

OZLM XXI Ltd., Series 2017-21A, Class B, (3 mo. LIBOR US + 1.90%),
3.04%, 01/20/31(a)(b)

      930       861,289  

OZLM XXIV Ltd., Series 2019-24A, Class A2A, (3 mo. LIBOR US + 2.25%), 3.39%, 07/20/32(a)(b)

      750       728,057  

Palmer Square CLO Ltd.

     

Series 2014-1A, Class A1R2, (3 mo. LIBOR US + 1.13%),
2.27%, 01/17/31(a)(b)

      4,548       4,452,237  

Series 2015-1A, Class A1R2, (3 mo. LIBOR US + 1.22%),
1.59%, 05/21/29(a)(b)

      10,965       10,809,733  

Series 2015-1A, Class A2R2, (3 mo. LIBOR US + 1.65%),
2.02%, 05/21/29(a)(b)

      2,460       2,389,730  

Series 2015-2A, Class A2R2, (3 mo. LIBOR US + 1.55%),
2.69%, 07/20/30(a)(b)

      2,500       2,401,442  

Series 2015-2A, Class CR2, (3 mo. LIBOR US + 2.75%), 3.89%, 07/20/30(a)(b)

      1,000       887,581  

Series 2018-1A, Class A1, (3 mo. LIBOR US + 1.03%), 2.17%, 04/18/31(a)(b)

      3,360       3,293,038  

Series 2018-2A, Class A1A, (3 mo. LIBOR US + 1.10%), 2.28%, 07/16/31(a)(b)

      4,820       4,699,086  

Series 2018-2A, Class A2, (3 mo. LIBOR US + 1.65%), 2.83%, 07/16/31(a)(b)

      1,500       1,445,870  

Series 2018-3A, Class A2, (3 mo. LIBOR US + 1.35%), 1.74%, 08/15/26(a)(b)

      3,323       3,212,944  

Palmer Square Loan Funding Ltd.

     

Series 2018-2A, Class A2, (3 mo. LIBOR US + 1.05%), 2.27%, 07/15/26(a)(b)

      3,050       2,923,239  

Series 2019-1A, Class D, (3 mo. LIBOR US + 5.80%), 6.94%, 04/20/27(a)(b)

      1,700       1,438,773  
 

 

 

  9


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Palmer Square Loan Funding Ltd.

     

Series 2019-2A, Class B, (3 mo. LIBOR US + 2.25%), 3.39%, 04/20/27(a)(b)

    USD       500     $ 488,782  

Series 2019-3A, Class A2, (3 mo. LIBOR US + 1.60%), 1.98%, 08/20/27(a)(b)

      2,110       2,076,621  

Series 2019-3A, Class B, (3 mo. LIBOR US + 2.10%), 2.48%, 08/20/27(a)(b)

      1,940       1,881,144  

Series 2019-4A, Class D, (3 mo. LIBOR US + 5.90%), 6.92%, 10/24/27(a)(b)

      1,488       1,103,819  

Series 2020-1A, Class A2, (3 mo. LIBOR US + 1.35%), 1.73%, 02/20/28(a)(b)

      4,860       4,637,940  

Series 2020-2A, Class A2, (3 mo. LIBOR US + 1.55%), 2.66%, 04/20/28(a)(b)

      5,850       5,632,917  

Series 2020-2A, Class B, (3 mo. LIBOR US + 2.25%), 3.36%, 04/20/28(a)(b)

      1,000       973,000  

Series 2020-2A, Class C, (3 mo. LIBOR US + 3.00%), 4.11%, 04/20/28(a)(b)(c)

      1,000       924,580  

Parallel Ltd.

     

Series 2015-1A, Class AR, (3 mo. LIBOR US + 0.85%), 1.99%, 07/20/27(a)(b)

      2,696       2,629,422  

Series 2015-1A, Class C1R, (3 mo. LIBOR US + 1.75%),
2.89%, 07/20/27(a)(b)

      1,150       1,085,616  

Park Avenue Institutional Advisers CLO Ltd.

     

Series 2017-1A, Class A1, (3 mo. LIBOR US + 1.22%), 1.64%, 11/14/29(a)(b)

      6,970       6,857,310  

Series 2017-1A, Class A2, (3 mo. LIBOR US + 1.70%), 2.12%, 11/14/29(a)(b)

      2,940       2,860,965  

Series 2019-1A, Class A1, (3 mo. LIBOR US + 1.48%), 1.87%, 05/15/32(a)(b)

      500       494,529  

Series 2019-1A, Class A2A, (3 mo. LIBOR US + 2.00%),
2.39%, 05/15/32(a)(b)

      500       489,489  

Pretium Mortgage Credit Partners I LLC, Series 2020-NPL2, Class A1, 3.72%, 02/27/60(b)(e)

      15,463       15,477,956  

Progress Residential Trust

     

Series 2017-SFR1, Class A,
2.77%, 08/17/34(b)

      2,639       2,679,668  

Series 2018-SFR1, Class F,
4.78%, 03/17/35(b)

      1,620       1,570,755  

Series 2018-SFR2, Class F,
4.95%, 08/17/35(b)

      1,030       1,034,063  

Series 2019-SFR1, Class E,
4.47%, 08/17/35(b)

      2,000       2,062,368  

Series 2020-SFR2, Class B,
2.58%, 06/18/37(b)

      550       566,640  

Race Point IX CLO Ltd., Series 2015-9A, Class A1AR, (3 mo. LIBOR US + 1.21%), 2.43%, 10/15/30(a)(b)

      3,730       3,637,920  

Race Point X CLO Ltd., Series 2016-10A, Class A1R, (3 mo. LIBOR US + 1.10%), 2.09%, 07/25/31(a)(b)

      5,510       5,303,809  

RAMP Series Trust, Series 2004-RS7, Class A2A, (1 mo. LIBOR US + 0.62%), 0.80%, 07/25/34(a)

      1,844       1,514,362  

Regatta Funding LP, Series 2013-2A, Class A1R2, (3 mo. LIBOR US + 1.25%), 2.47%, 01/15/29(a)(b)

      1,300       1,288,965  

Regatta VI Funding Ltd., Series 2016-1A, Class AR, (3 mo. LIBOR US + 1.08%), 2.22%, 07/20/28(a)(b)

      10,290       10,124,306  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Regatta VII Funding Ltd., Series 2016-1A, Class BR, (3 mo. LIBOR US + 1.50%), 1.81%, 12/20/28(a)(b)

    USD       250     $ 240,423  

Regional Management Issuance Trust, Series 2019-1, Class A, 3.05%, 11/15/28(b)

      12,820       12,606,143  

Republic FInance Issuance Trust, Series 2019-A, Class A, 3.43%, 11/22/27(b)

      14,870       14,794,871  

Riserva CLO Ltd., Series 2016-3A, Class AR, (3 mo. LIBOR US + 1.14%),
2.28%, 10/18/28(a)(b)

      4,670       4,612,663  

Rockford Tower CLO Ltd.

     

Series 2017-1A, Class AR, (3 mo. LIBOR US + 1.03%), 2.25%, 04/15/29(a)(b)

      10,140       9,924,133  

Series 2017-1A, Class BR, (3 mo. LIBOR US + 1.45%), 2.67%, 04/15/29(a)(b)

      7,210       6,922,051  

Series 2017-1A, Class CR, (3 mo. LIBOR US + 1.85%), 3.07%, 04/15/29(a)(b)

      2,490       2,374,782  

Series 2017-1A, Class DR, (3 mo. LIBOR US + 2.65%), 3.87%, 04/15/29(a)(b)

      750       668,786  

Series 2017-2A, Class BR, (3 mo. LIBOR US + 1.50%), 2.72%, 10/15/29(a)(b)

      7,771       7,369,239  

Series 2017-2A, Class CR, (3 mo. LIBOR US + 1.90%), 3.12%, 10/15/29(a)(b)

      2,750       2,624,308  

Series 2017-2A, Class DR, (3 mo. LIBOR US + 2.85%), 4.07%, 10/15/29(a)(b)

      4,766       4,297,188  

Series 2017-2A, Class ER, (3 mo. LIBOR US + 6.25%), 7.47%, 10/15/29(a)(b)

      1,750       1,477,706  

Series 2017-3A, Class A, (3 mo. LIBOR US + 1.19%), 2.33%, 10/20/30(a)(b)

      14,614       14,337,221  

Series 2018-1A, Class A, (3 mo. LIBOR US + 1.10%), 1.48%, 05/20/31(a)(b)

      1,953       1,900,681  

Series 2018-1A, Class B, (3 mo. LIBOR US + 1.72%), 2.10%, 05/20/31(a)(b)

      1,500       1,451,731  

Series 2018-1A, Class D, (3 mo. LIBOR US + 3.00%), 3.38%, 05/20/31(a)(b)

      750       670,433  

Series 2018-2A, Class A, (3 mo. LIBOR US + 1.16%), 2.30%, 10/20/31(a)(b)

      1,000       974,435  

Series 2018-2A, Class B, (3 mo. LIBOR US + 1.80%), 2.94%, 10/20/31(a)(b)

      500       486,093  

Series 2019-2A, Class B, (3 mo. LIBOR US + 1.93%), 2.31%, 08/20/32(a)(b)

      1,250       1,222,489  

Rockford Tower Europe CLO DAC, Series 2018-1X, Class B, (3 mo. EURIBOR + 1.85%), 1.85%, 12/20/31(a)

    EUR       2,328       2,592,473  

Romark WM-R Ltd., Series 2018-1A, Class A1, (3 mo. LIBOR US + 1.03%), 2.17%, 04/20/31(a)(b)

    USD       4,317       4,194,943  

RR 2 Ltd.

     

Series 2017-2A, Class A2, (3 mo. LIBOR US + 1.60%), 2.82%, 10/15/29(a)(b)

      750       725,503  

Series 2017-2A, Class B, (3 mo. LIBOR US + 2.00%), 3.22%, 10/15/29(a)(b)

      750       716,629  

RR 3 Ltd., Series 2018-3A, Class A1R2, (3 mo. LIBOR US + 1.09%),
2.31%, 01/15/30(a)(b)

      2,020       1,971,544  

RR 4 Ltd., Series 2018-4A, Class A2, (3 mo. LIBOR US + 1.55%), 2.77%, 04/15/30(a)(b)

      1,400       1,346,114  

RR 6 Ltd., Series 2019-6A, Class A1A, (3 mo. LIBOR US + 1.25%), 2.47%, 04/15/30(a)(b)

      9,840       9,683,847  

SACO I Trust, Series 2006-9, Class A1, (1 mo. LIBOR US + 0.30%),
0.48%, 08/25/36(a)

      282       277,317  
 

 

 

10  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Security National Mortgage Loan Trust, Series 2007-1A, Class 2A, (1 mo. LIBOR US + 0.35%), 0.53%, 04/25/37(a)(b)

    USD       435     $ 430,457  

Seneca Park CLO Ltd., Series 2014-1A, Class AR, (3 mo. LIBOR US + 1.12%), 2.26%, 07/17/26(a)(b)

      52       51,942  

SG Mortgage Securities Trust, Series 2006-FRE2, Class A2C, (1 mo. LIBOR US + 0.16%), 0.34%, 07/25/36(a)

      961       285,558  

Silver Creek CLO Ltd.

     

Series 2014-1A, Class AR, (3 mo. LIBOR US + 1.24%), 2.38%, 07/20/30(a)(b)

      3,920       3,856,398  

Series 2014-1A, Class CR, (3 mo. LIBOR US + 2.30%), 3.44%, 07/20/30(a)(b)

      500       484,641  

SLM Private Credit Student Loan Trust

     

Series 2004-A, Class A3, (3 mo. LIBOR US + 0.40%), 0.71%, 06/15/33(a)

      1,778       1,716,779  

Series 2004-B, Class A3, (3 mo. LIBOR US + 0.33%), 0.64%, 03/15/24(a)

      6,422       6,328,598  

Series 2006-B, Class A5, (3 mo. LIBOR US + 0.27%), 0.58%, 12/15/39(a)

      475       437,933  

SLM Private Education Loan Trust, Series 2010-C, Class A5, (1 mo. LIBOR US + 4.75%), 4.94%, 10/15/41(a)(b)

      8,210       8,763,127  

SMB Private Education Loan Trust

     

Series 2015-B, Class B,
3.50%, 12/17/40(b)

      2,480       2,508,741  

Series 2020-PTA, Class A2A,
1.60%, 09/15/54(b)

      20,680       20,393,135  

Series 2020-PTA, Class B,
2.50%, 09/15/54(b)

      6,740       6,723,610  

Sound Point CLO II Ltd., Series 2013-1A, Class A1R, (3 mo. LIBOR US + 1.07%), 2.06%, 01/26/31(a)(b)

      500       483,759  

Sound Point CLO XI Ltd., Series 2016-1A, Class CR, (3 mo. LIBOR US + 2.25%), 3.39%, 07/20/28(a)(b)

      440       430,314  

Sound Point CLO XIV Ltd.

     

Series 2016-3A, Class AR, (3 mo. LIBOR US + 1.15%), 2.19%, 01/23/29(a)(b)

      9,440       9,298,759  

Series 2016-3A, Class C, (3 mo. LIBOR US + 2.65%), 3.69%, 01/23/29(a)(b)

      1,000       987,750  

Sound Point CLO XV Ltd., Series 2017-1A, Class AR, (3 mo. LIBOR US + 1.15%), 2.19%, 01/23/29(a)(b)

      1,720       1,692,833  

Sound Point CLO XVIII Ltd., Series 2017-4A, Class B, (3 mo. LIBOR US + 1.80%), 2.94%, 01/21/31(a)(b)

      500       464,922  

Sound Point CLO XXIII, Series 2019-2A, Class A1, (3 mo. LIBOR US + 1.40%), 2.62%, 04/15/32(a)(b)

      19,610       19,142,341  

Soundview Home Loan Trust, Series 2004-WMC1, Class M2, (1 mo. LIBOR US + 0.80%), 0.98%, 01/25/35(a)

      48       44,457  

Starwood Waypoint Homes Trust, Series 2017-1, Class E, (1 mo. LIBOR US + 2.60%), 2.79%, 01/17/35(a)(b)

      4,500       4,405,738  

Steele Creek CLO Ltd., Series 2017-1A, Class A, (3 mo. LIBOR US + 1.25%), 2.47%, 10/15/30(a)(b)

      4,140       4,016,554  

Stewart Park CLO Ltd., Series 2015-1A, Class CR, (3 mo. LIBOR US + 1.80%), 3.02%, 01/15/30(a)(b)

      1,630       1,540,483  
Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Structured Asset Securities Corp. Assistance Loan Trust, Series 2003-AL2, Class A, 3.36%, 01/25/31(b)

    USD       253     $ 248,183  

Structured Asset Securities Corp. Mortgage Pass-Through Certificates, Series 2004-23XS, Class 2A1, (1 mo. LIBOR US + 0.30%), 0.48%, 01/25/35(a)

      281       277,159  

Symphony CLO XVII Ltd., Series 2016-17A, Class AR, (3 mo. LIBOR US + 0.88%), 2.10%, 04/15/28(a)(b)

      3,620       3,552,949  

Symphony CLO XVIII Ltd.

     

Series 2016-18A, Class AR, (3 mo. LIBOR US + 1.15%), 2.19%, 01/23/28(a)(b)

      4,140       4,071,096  

Series 2016-18A, Class B, (3 mo. LIBOR US + 1.80%), 2.84%, 01/23/28(a)(b)

      300       292,429  

Symphony CLO XXI Ltd., Series 2019-21A, Class A, (3 mo. LIBOR US + 1.38%), 2.60%, 07/15/32(a)(b)

      4,230       4,164,399  

TCI-Flatiron CLO Ltd., Series 2017-1A, Class A, (3 mo. LIBOR US + 1.20%),
1.59%, 11/18/30(a)(b)

      3,290       3,227,819  

TCW CLO Ltd., Series 2020-1A, Class D, (3 mo. LIBOR US + 4.50%), 5.26%, 04/20/28(a)(b)

      2,150       2,148,935  

Thacher Park CLO Ltd., Series 2014-1A, Class AR, (3 mo. LIBOR US + 1.16%), 2.30%, 10/20/26(a)(b)

      142       141,087  

THL Credit Wind River CLO Ltd.

     

Series 2012-1A, Class BR2, (3 mo. LIBOR US + 1.45%), 2.67%, 01/15/26(a)(b)

      920       905,080  

Series 2016-1A, Class AR, (3 mo. LIBOR US + 1.05%), 2.27%, 07/15/28(a)(b)

      4,880       4,798,415  

Series 2017-1A, Class C, (3 mo. LIBOR US + 2.30%), 3.44%, 04/18/29(a)(b)

      1,400       1,312,320  

TIAA CLO II Ltd., Series 2017-1A, Class A, (3 mo. LIBOR US + 1.28%),
2.42%, 04/20/29(a)(b)

      2,340       2,304,426  

TIAA CLO III Ltd., Series 2017-2A, Class A, (3 mo. LIBOR US + 1.15%),
2.33%, 01/16/31(a)(b)

      1,467       1,427,406  

TICP CLO I Ltd., Series 2015-1A, Class AR, (3 mo. LIBOR US + 0.80%),
1.94%, 07/20/27(a)(b)

      905       896,620  

TICP CLO IX Ltd., Series 2017-9A, Class A, (3 mo. LIBOR US + 1.14%),
2.28%, 01/20/31(a)(b)

      3,080       3,008,261  

TICP CLO V Ltd., Series 2016-5A, Class ER, (3 mo. LIBOR US + 5.75%),
6.89%, 07/17/31(a)(b)

      1,000       756,270  

TICP CLO VI Ltd.

     

Series 2016-6A, Class AR, (3 mo. LIBOR US + 1.20%), 2.42%, 01/15/29(a)(b)

      3,820       3,787,312  

Series 2016-6A, Class BR, (3 mo. LIBOR US + 1.70%), 2.92%, 01/15/29(a)(b)

      5,360       5,215,209  

TICP CLO VII Ltd., Series 2017-7A, Class ER, (3 mo. LIBOR US + 7.05%),
8.56%, 04/15/33(a)(b)

      750       605,005  

TICP CLO XI Ltd., Series 2018-11A, Class A, (3 mo. LIBOR US + 1.18%),
2.32%, 10/20/31(a)(b)

      750       732,994  

TICP CLO XII Ltd., Series 2018-12A, Class A, (3 mo. LIBOR US + 1.11%),
2.33%, 01/15/31(a)(b)

      250       245,304  
 

 

 

  11


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  

Asset-Backed Securities (continued)

 

 

Towd Point Mortgage Trust, Series 2019-SJ2, Class M1, 4.50%, 11/25/58(b)(d)

    USD       8,260     $   8,331,606  

TRESTLES CLO III Ltd.

     

Series 2020-3A, Class A1, (3 mo. LIBOR US + 1.33%), 2.48%, 01/20/33(a)(b)

      5,840       5,717,532  

Series 2020-3A, Class B1, (3 mo. LIBOR US + 1.85%), 3.00%, 01/20/33(a)(b)

      2,590       2,512,490  

TRESTLES CLO Ltd., Series 2017-1A, Class A1A, (3 mo. LIBOR US + 1.29%), 2.28%, 07/25/29(a)(b)

      250       246,388  

Tricon American Homes Trust

     

Series 2017-SFR1, Class F,
5.15%, 09/17/34(b)

      9,140       9,287,275  

Series 2018-SFR1, Class E,
4.56%, 05/17/37(b)

      890       909,087  

Series 2018-SFR1, Class F,
4.96%, 05/17/37(b)

      610       616,318  

Venture CLO Ltd.

     

Series 2018-32A, Class A2A, (3 mo. LIBOR US + 1.07%),
2.21%, 07/18/31(a)(b)

      1,480       1,428,493  

Series 2018-35A, Class AS, (3 mo. LIBOR US + 1.15%),
2.25%, 10/22/31(a)(b)

      2,810       2,794,720  

Venture XVIII CLO Ltd., Series 2014-18A, Class AR, (3 mo. LIBOR US + 1.22%), 2.44%, 10/15/29(a)(b)

      9,820       9,474,410  

Venture XXIV CLO Ltd., Series 2016-24A, Class AR, (3 mo. LIBOR US + 1.18%), 2.32%, 10/20/28(a)(b)

      3,300       3,241,729  

Vericrest Opportunity Loan Trust, Series 2019- NPL2, Class A1, 3.97%, 02/25/49(b)(e)

      1,115       1,120,368  

Vibrant CLO VII Ltd., Series 2017-7A, Class A1, (3 mo. LIBOR US + 1.27%), 2.41%, 09/15/30(a)(b)

      1,750       1,714,823  

Voya CLO Ltd.

     

Series 2014-3A, Class CR, (3 mo. LIBOR US + 2.65%), 3.64%, 07/25/26(a)(b)

      1,680       1,461,578  

Series 2014-4A, Class A1RA, (3 mo. LIBOR US + 1.10%),
2.41%, 07/14/31(a)(b)

      250       244,446  

Series 2015-2A, Class BR, (3 mo. LIBOR US + 1.50%),
2.54%, 07/23/27(a)(b)

      780       751,944  

Series 2017-3A, Class A1A, (3 mo. LIBOR US + 1.23%),
2.37%, 07/20/30(a)(b)

      2,201       2,166,424  

Series 2017-4A, Class A1, (3 mo. LIBOR US + 1.13%), 2.35%, 10/15/30(a)(b)

      6,640       6,506,505  

Series 2019-1A, Class AR, (3 mo. LIBOR US + 1.06%), 2.28%, 04/15/31(a)(b)

      10,079       9,815,055  

Wachovia Asset Securitization Issuance II LLC Trust, Series 2007-HE2A, Class A, (1 mo. LIBOR US + 0.13%),
0.31%, 07/25/37(a)(b)

      1,536       1,364,564  

Washington Mutual Asset-Backed Certificates Trust

     

Series 2006-HE4, Class 2A2, (1 mo. LIBOR US + 0.18%),
0.36%, 09/25/36(a)

      5,080       2,195,500  

Series 2006-HE5, Class 1A, (1 mo. LIBOR US + 0.16%),
0.34%, 10/25/36(a)

      1,943       1,514,456  

Wellfleet CLO Ltd.

     

Series 2017-1A, Class A1R, (3 mo. LIBOR US + 1.15%),
2.26%, 04/20/29(a)(b)

      3,750       3,673,514  

Series 2017-3A, Class B, (3 mo. LIBOR US + 1.95%), 3.09%, 01/17/31(a)(b)

      750       699,031  
Security         

Par

(000)

    Value  

Asset-Backed Securities (continued)

 

 

Westcott Park CLO Ltd., Series 2016-1A, Class AR, (3 mo. LIBOR US + 1.21%), 2.35%, 07/20/28(a)(b)

    USD       5,610     $ 5,551,995  

Whitebox CLO I Ltd., Series 2019-1A, Class C, (3 mo. LIBOR US + 4.35%), 5.37%, 07/24/32(a)(b)

      1,630       1,608,728  

Yale Mortgage Loan Trust, Series 2007-1, Class A, (1 mo. LIBOR US + 0.40%), 0.59%, 06/25/37(a)(b)

      2,469       989,500  

York CLO 1 Ltd., Series 2014-1A, Class DRR, (3 mo. LIBOR US + 3.01%), 4.11%, 10/22/29(a)(b)

      250       238,589  

York CLO-2 Ltd., Series 2015-1A, Class AR, (3 mo. LIBOR US + 1.15%), 2.25%, 01/22/31(a)(b)

      250       244,023  

York CLO-3 Ltd., Series 2016-1A, Class BR, (3 mo. LIBOR US + 1.75%), 2.89%, 10/20/29(a)(b)

      3,380       3,289,786  

York CLO-4 Ltd.

     

Series 2016-2A, Class A1R, (3 mo. LIBOR US + 1.09%), 2.23%, 04/20/32(a)(b)(c)

      8,250       7,961,250  

Series 2016-2A, Class BR, (3 mo. LIBOR US + 1.55%), 2.69%, 04/20/32(a)(b)(c)

      3,000       2,820,000  

Series 2016-2A, Class CR, (3 mo. LIBOR US + 2.15%), 3.29%, 04/20/32(a)(b)

      3,000       2,849,494  

York CLO-7 Ltd., Series 2019-2A, Class C, (3 mo. LIBOR US + 2.75%), 4.54%, 01/22/33(a)(b)

      500       485,153  
   

 

 

 

Total Asset-Backed Securities — 10.0%
(Cost: $1,923,870,087)

 

    1,872,810,983  
   

 

 

 
    Shares        

Common Stocks

 

Energy Equipment & Services — 0.0%  

Bristow Group, Inc.(f)

      61,956       863,047  

Pioneer Energy Services Corp.(c)

      7,278       282,627  

Vantage Drilling Co.(f)

      311,000       1,936  
     

 

 

 
        1,147,610  
Hotels, Restaurants & Leisure — 0.1%  

Caesars Entertainment Corp.(f)

      1,186,079       14,387,138  

Target Hospitality Corp.(f)

      112,843       190,705  
     

 

 

 
        14,577,843  
Household Durables — 0.1%                  

Beazer Homes U.S.A., Inc.(f)

      52,287       526,530  

Century Communities, Inc.(f)

      56,406       1,729,408  

Taylor Morrison Home Corp.(f)

      328,641       6,339,485  
     

 

 

 
        8,595,423  
Independent Power and Renewable Electricity Producers — 0.0%  

Vistra Energy Corp.

      139,988       2,606,576  
     

 

 

 
Metals & Mining — 0.0%                  

Northern Graphite Corp.(f)

      99,612       13,207  
     

 

 

 
Real Estate Management & Development — 0.0%  

Forestar Group, Inc.(f)

      50,609       763,184  
     

 

 

 

Total Common Stocks — 0.2%
(Cost: $26,926,628)

 

    27,703,843  
     

 

 

 
 

 

 

12  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  

Corporate Bonds

     
Aerospace & Defense — 1.8%                  

BAE Systems Holdings, Inc.

     

3.80%, 10/07/24(b)

    USD       2,488     $ 2,732,221  

3.85%, 12/15/25(b)

      12,498       13,838,904  

4.75%, 10/07/44(b)

      259       316,716  

BAE Systems PLC, 3.40%, 04/15/30(b)

      2,782       3,030,064  

Boeing Co.

     

4.51%, 05/01/23

      9,500       10,036,072  

4.88%, 05/01/25

      2,979       3,246,525  

3.83%, 03/01/59

      605       512,775  

5.93%, 05/01/60

      5,008       5,938,945  

Embraer Netherlands Finance BV,
5.40%, 02/01/27

      1,465       1,296,525  

Embraer Overseas Ltd., 5.70%, 09/16/23

      3,291       3,135,706  

General Dynamics Corp.

     

3.50%, 05/15/25

      2,350       2,627,825  

3.75%, 05/15/28

      4,050       4,722,936  

3.63%, 04/01/30

      5,961       6,973,897  

4.25%, 04/01/50

      1,506       1,949,037  

Howmet Aerospace, Inc., 6.88%, 05/01/25

      4,100       4,447,930  

Huntington Ingalls Industries, Inc.

     

3.84%, 05/01/25(b)

      5,245       5,695,150  

4.20%, 05/01/30(b)

      9,516       10,603,539  

L3 Technologies, Inc., 4.95%, 02/15/21

      250       253,040  

L3Harris Technologies, Inc.

     

3.85%, 06/15/23

      2,291       2,492,770  

3.85%, 12/15/26

      10,802       12,363,885  

4.40%, 06/15/28

      13,382       15,829,498  

4.40%, 06/15/28

      3,547       4,195,728  

2.90%, 12/15/29

      864       930,413  

Lockheed Martin Corp.

     

3.55%, 01/15/26

      6,360       7,311,734  

1.85%, 06/15/30

      1,111       1,141,992  

3.60%, 03/01/35

      14,240       17,086,600  

4.07%, 12/15/42

      2,369       3,004,832  

3.80%, 03/01/45

      2,429       2,949,468  

4.70%, 05/15/46

      1,489       2,031,677  

2.80%, 06/15/50

      9,104       9,580,495  

Northrop Grumman Corp.

     

2.93%, 01/15/25

      10,547       11,407,639  

3.25%, 01/15/28

      16,486       18,436,826  

4.03%, 10/15/47

      3,320       4,024,407  

5.25%, 05/01/50

      3,342       4,793,967  

Raytheon Technologies Corp.

     

3.65%, 08/16/23

      694       751,586  

3.20%, 03/15/24(b)

      8,458       9,113,499  

3.15%, 12/15/24(b)

      4,040       4,363,891  

3.95%, 08/16/25

      7,411       8,432,529  

7.20%, 08/15/27(b)

      2,353       3,161,311  

7.00%, 11/01/28(b)

      7,205       9,910,886  

4.13%, 11/16/28

      22,595       26,614,282  

7.50%, 09/15/29

      475       679,296  

2.25%, 07/01/30

      13,896       14,472,696  

4.20%, 12/15/44(b)

      1,922       2,196,845  

Textron, Inc.

     

3.88%, 03/01/25

      3,610       3,841,197  

3.65%, 03/15/27

      2,985       3,092,003  

3.90%, 09/17/29

      8,086       8,566,434  

TransDigm, Inc.

     

8.00%, 12/15/25(b)

      9,810       10,310,212  

6.25%, 03/15/26(b)

      23,463       23,404,812  
Security         

Par

(000)

    Value  
Aerospace & Defense (continued)                  

United Technologies Corp.

     

5.40%, 05/01/35

    USD       2,386     $ 3,229,222  

5.70%, 04/15/40

      665       919,453  
     

 

 

 
        331,999,892  
Air Freight & Logistics — 0.4%  

FedEx Corp.

     

3.80%, 05/15/25

      26,545       29,507,721  

3.10%, 08/05/29

      283       302,075  

3.88%, 08/01/42

      5,393       5,403,145  

5.10%, 01/15/44

      2       2,333  

4.10%, 02/01/45

      3,408       3,463,070  

4.55%, 04/01/46

      1,320       1,423,134  

United Parcel Service, Inc.

     

3.40%, 03/15/29

      7,874       9,105,720  

2.50%, 09/01/29

      4,016       4,373,416  

4.45%, 04/01/30

      9,021       11,263,584  

5.20%, 04/01/40

      5,857       8,086,473  

XPO Logistics, Inc.

     

6.13%, 09/01/23(b)

      1,462       1,480,275  

6.75%, 08/15/24(b)

      3,480       3,645,648  
     

 

 

 
        78,056,594  
Airlines — 0.5%                  

Air Canada Pass-Through Trust

     

Series 2013-1, Class A, 4.13%, 05/15/25(b)

      3,764       3,465,395  

Series 2015-2, Class B, 5.00%, 12/15/23(b)

      1,241       1,037,679  

Series 2017-1, Class AA,
3.30%, 01/15/30(b)

      2,030       1,840,647  

Series 2017-1, Class B, 3.70%, 01/15/26(b)

      21       18,504  

Alaska Airlines Pass-Through Trust,
Series 2020-1, Class A, 4.80%, 08/15/27(b)

      8,910       9,021,375  

American Airlines Pass-Through Trust

     

3.93%, 12/15/25(c)

      1,705       1,485,654  

3.53%, 12/15/27(c)

      4,717       4,056,254  

Series 2015-2, Class AA, 3.60%, 09/22/27

      1,065       984,537  

Series 2015-2, Class B, 4.40%, 09/22/23

      5,833       4,148,735  

Series 2016-1, Class AA, 3.58%, 01/15/28

      4,245       4,106,919  

Series 2016-1, Class B, 5.25%, 01/15/24

      4,719       3,121,793  

Series 2016-2, Class AA, 3.20%, 06/15/28

      1,892       1,781,951  

Series 2016-3, Class AA, 3.00%, 10/15/28

      4,252       3,899,559  

Series 2016-3, Class B, 3.75%, 10/15/25

      74       52,364  

Series 2017-1, Class AA, 3.65%, 02/15/29

      1,490       1,426,946  

Series 2017-1, Class B, 4.95%, 02/15/25

      1,385       1,046,875  

Series 2017-2, Class B, 3.70%, 10/15/25

      1,508       1,047,319  

Series 2019-1, Class AA, 3.15%, 02/15/32

      5,199       4,783,547  

Series 2019-1, Class B, 3.85%, 02/15/28

      5,544       3,881,244  

American Airlines, Inc.

     

4.13%, 06/15/22(c)

      15,927       13,717,925  

4.87%, 10/22/23(c)

      1,080       892,590  

Avianca Holdings SA, 9.00%, 05/10/23(b)(f)(g)

      983       197,091  

Delta Air Lines Pass-Through Trust,
Series 2019-1, Class AA, 3.20%, 04/25/24

      9,754       9,765,082  

Gol Finance, Inc., 7.00%, 01/31/25(b)

      3,175       1,785,937  

Sun Country Airlines

     

Series 2019-1B, 4.70%, 12/15/25(c)

      2,342       1,943,992  

Series 2019-1C, 7.00%, 12/15/25(c)

      2,344       1,904,429  

Transportes Aereos Portugueses SA, 5.63%, 12/02/24(b)

    EUR       1,300       971,167  

Turkish Airlines Pass-Through Trust,
Series 2015-1, Class A, 4.20%, 03/15/27(b)

    USD       1,396       1,036,546  

United Airlines Pass-Through Trust

     

Series 2014-1, Class B, 4.75%, 04/11/22

      364       323,331  

Series 2014-2, Class B, 4.63%, 09/03/22

      452       398,369  

Series 2015-1, Class AA, 3.45%, 12/01/27

      1,472       1,435,076  
 

 

 

  13


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Airlines (continued)                  

United Airlines Pass-Through Trust

     

Series 2016-1, Class AA,
3.10%, 07/07/28

    USD       595     $ 571,015  

Series 2016-1, Class B,
3.65%, 01/07/26

      456       336,319  

Series 2016-2, Class AA,
2.88%, 10/07/28

      1,811       1,691,382  

Series 2016-2, Class B,
3.65%, 10/07/25

      240       175,485  

Series 2018-1, Class AA,
3.50%, 03/01/30

      1,250       1,169,465  

Series 2018-1, Class B,
4.60%, 03/01/26

      2,004       1,501,128  

Series 2019-2, Class AA,
2.70%, 05/01/32

      3,365       3,038,547  

Series 2019-2, Class B,
3.50%, 05/01/28

      4,946       3,719,025  

US Airways Pass-Through Trust

     

Series 2012-2, Class B, 6.75%, 06/03/21

      136       110,253  

Series 2013-1, Class B, 5.38%, 11/15/21

      532       432,420  
     

 

 

 
            98,323,871  
Auto Components — 0.0%                  

American Axle & Manufacturing, Inc., 6.25%, 04/01/25

      1,860       1,827,450  

Aptiv PLC, 5.40%, 03/15/49

      325       339,703  

Magna International, Inc., 2.45%, 06/15/30

      2,085       2,132,283  
     

 

 

 
        4,299,436  
Automobiles — 0.2%                  

BMW U.S. Capital LLC

     

3.90%, 04/09/25(b)

      6,825       7,573,760  

2.80%, 04/11/26(b)

      648       686,158  

Daimler Finance North America LLC

     

2.30%, 02/12/21(b)

      8,755       8,815,643  

3.35%, 05/04/21(b)

      13,164       13,407,209  

3.75%, 11/05/21(b)

      150       155,067  

General Motors Co.

     

6.60%, 04/01/36

      893       965,343  

6.25%, 10/02/43

      3,456       3,672,597  

6.75%, 04/01/46

      3,243       3,532,452  

5.40%, 04/01/48

      1,896       1,859,293  
     

 

 

 
        40,667,522  
Banks — 6.0%                  

Banco de Credito del Peru, (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 3.00%), 3.13%, 07/01/30(b)(h)

      3,279       3,226,536  

Banco Espirito Santo SA

     

2.63%, 05/08/17(f)(g)

    EUR       400       71,904  

4.75%, 01/15/18(f)(g)

      2,200       395,470  

4.00%, 01/21/19(f)(g)

      6,300       1,132,482  

Banco Internacional del Peru SAA Interbank, 3.25%, 10/04/26(b)

    USD       2,224       2,245,545  

Banco Santander Mexico SA Institucion de Banca Multiple Grupo Financiero Santand, 5.38%, 04/17/25(b)

      3,285       3,595,104  

Banco Santander SA

     

2.71%, 06/27/24

      13,400       14,084,280  

3.31%, 06/27/29

      3,600       3,885,660  

Banco Votorantim SA, 4.00%, 09/24/22(b)

      2,516       2,533,297  

Bancolombia SA, 3.00%, 01/29/25

      3,704       3,611,400  

Bangkok Bank PCL, (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 1.90%), 3.73%, 09/25/34(h)

      2,275       2,184,000  

Bank of America Corp.

     

(3 mo. LIBOR US + 0.66%),
2.37%, 07/21/21(h)

      14,085       14,098,011  

(3 mo. LIBOR US + 0.63%),
2.33%, 10/01/21(h)

      37,283       37,434,703  

(3 mo. LIBOR US + 0.37%),
2.74%, 01/23/22(h)

      83       83,921  
Security         

Par

(000)

    Value  
Banks (continued)                  

Bank of America Corp.

     

(3 mo. LIBOR US + 0.63%), 3.50%, 05/17/22(h)

    USD       10,605     $     10,863,020  

(3 mo. LIBOR US + 1.16%), 3.12%, 01/20/23(h)

      5,470       5,665,629  

(3 mo. LIBOR US + 1.02%), 2.88%, 04/24/23(h)

      428       443,657  

(3 mo. LIBOR US + 0.93%), 2.82%, 07/21/23(h)

      2,979       3,094,253  

4.20%, 08/26/24

      3,784       4,200,991  

4.00%, 01/22/25

      4,977       5,496,375  

3.95%, 04/21/25

      4,095       4,534,439  

3.88%, 08/01/25

      964       1,091,472  

(3 mo. LIBOR US + 0.87%), 2.46%, 10/22/25(h)

      13,300       13,972,421  

4.45%, 03/03/26

      11,549       13,295,723  

(3 mo. LIBOR US + 1.06%), 3.56%, 04/23/27(h)

      3,876       4,325,930  

(3 mo. LIBOR US + 1.58%), 3.82%, 01/20/28(h)

      24,629       27,954,141  

(3 mo. LIBOR US + 1.51%),
3.71%, 04/24/28(h)

      13,449       15,202,285  

(3 mo. LIBOR US + 1.37%), 3.59%, 07/21/28(h)

      1,191       1,334,910  

(3 mo. LIBOR US + 1.04%), 3.42%, 12/20/28(h)

      33,510       37,325,182  

(3 mo. LIBOR US + 1.07%), 3.97%, 03/05/29(h)

      14,139       16,198,695  

(3 mo. LIBOR US + 1.31%), 4.27%, 07/23/29(h)

      3,621       4,270,846  

(3 mo. LIBOR US + 1.18%), 3.19%, 07/23/30(h)

      460       507,797  

(3 mo. LIBOR US + 1.19%), 2.88%, 10/22/30(h)

      2,515       2,720,876  

(Secured Overnight Financing Rate + 1.93%), 2.68%, 06/19/41(h)

      23,564       24,200,077  

Bank of East Asia Ltd., (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 3.75%), 4.00%, 05/29/30(h)

      2,160       2,208,881  

Bank of Montreal

     

3.30%, 02/05/24

      5,536       6,012,735  

2.50%, 06/28/24

      4,500       4,772,664  

Barclays PLC

     

4.38%, 01/12/26

      4,159       4,683,117  

(3 mo. LIBOR US + 1.90%), 4.97%, 05/16/29(h)

      6,799       7,965,989  

BBVA Bancomer SA

     

6.75%, 09/30/22(b)

      2,888       3,079,330  

(5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 4.31%), 5.88%, 09/13/34(b)(h)

      3,870       3,774,459  

BNP Paribas SA

     

3.50%, 03/01/23(b)

      8,616       9,119,800  

3.38%, 01/09/25(b)

      2,338       2,527,002  

4.38%, 09/28/25(b)

      2,732       3,013,478  

(3 mo. LIBOR US + 1.11%), 2.82%, 11/19/25(b)(h)

      11,159       11,686,125  

(Secured Overnight Financing Rate + 1.51%), 3.05%, 01/13/31(b)(h)

      7,442       7,838,607  

BPCE SA

     

3.00%, 05/22/22(b)

      2,017       2,085,527  

2.70%, 10/01/29(b)

      9,456       10,093,302  
 

 

 

14  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Banks (continued)                  

Citigroup, Inc.

     

(3 mo. LIBOR US + 0.95%),
2.88%, 07/24/23(h)

    USD       4,900     $ 5,099,599  

4.40%, 06/10/25

      5,977       6,693,075  

3.20%, 10/21/26

      524       574,370  

4.45%, 09/29/27

      2,124       2,424,901  

(3 mo. LIBOR US + 1.56%),
3.89%, 01/10/28(h)

      8,833       9,956,578  

(3 mo. LIBOR US + 1.39%),
3.67%, 07/24/28(h)

      34,845       38,849,885  

(3 mo. LIBOR US + 1.19%),
4.08%, 04/23/29(h)

      3,412       3,892,661  

(Secured Overnight Financing Rate + 1.42%), 2.98%, 11/05/30(h)

      4,852       5,163,545  

Citizens Financial Group, Inc.,
3.25%, 04/30/30

      2,910       3,144,973  

Credicorp Ltd., 2.75%, 06/17/25(b)

      590       587,138  

Danske Bank A/S 5.00%, 01/12/22(b)

      13,526       14,210,550  

(3 mo. LIBOR US + 1.25%),
3.00%, 09/20/22(b)(h)

      927       941,413  

5.38%, 01/12/24(b)

      14,017       15,598,433  

Fifth Third Bancorp, 3.65%, 01/25/24

      2,460       2,684,612  

Grupo Aval Ltd., 4.75%, 09/26/22

      1,073       1,080,329  

HSBC Holdings PLC

     

(3 mo. LIBOR US + 1.35%),
4.29%, 09/12/26(h)

      4,934       5,488,476  

(3 mo. LIBOR US + 1.55%), 4.04%, 03/13/28(h)

      9,444       10,437,882  

(3 mo. LIBOR US + 1.53%), 4.58%, 06/19/29(h)

      1,491       1,722,584  

(3 mo. LIBOR US + 1.61%), 3.97%, 05/22/30(h) 

      12,500       13,876,174  

Huntington National Bank, 3.25%, 05/14/21

      3,780       3,864,119  

ING Groep NV

     

4.10%, 10/02/23

      23,473       25,719,319  

4.63%, 01/06/26(b)

      5,226       6,122,965  

(1 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 1.10%), 1.40%, 07/01/26(b)(h)

      2,400       2,405,601  

Intesa Sanpaolo SpA, 6.50%, 02/24/21(b)

      1,790       1,840,390  

Itau Unibanco Holding SA

     

2.90%, 01/24/23(b)

      4,491       4,429,249  

3.25%, 01/24/25(b)

      2,456       2,419,820  

JPMorgan Chase & Co.

     

2.55%, 03/01/21

      7,857       7,955,110  

4.35%, 08/15/21

      184       192,021  

2.97%, 01/15/23

      3,167       3,279,326  

(3 mo. LIBOR US + 0.70%),
3.21%, 04/01/23(h)

      23,172       24,125,676  

(3 mo. LIBOR US + 0.73%), 3.56%, 04/23/24(h)

      2,451       2,623,824  

(3 mo. LIBOR US + 0.89%), 3.80%, 07/23/24(h)

      13,298       14,425,395  

(3 mo. LIBOR US + 1.00%), 4.02%, 12/05/24(h)

      39,194       43,187,604  

(3 mo. LIBOR US + 1.16%), 3.22%, 03/01/25(h)

      30,542       32,886,835  

3.90%, 07/15/25

      8,990       10,168,566  

(Secured Overnight Financing Rate + 1.16%), 2.30%, 10/15/25(h)

      8,819       9,237,718  

(Secured Overnight Financing Rate + 1.59%), 2.01%, 03/13/26(h)

      4,655       4,817,673  
Security         

Par

(000)

    Value  
Banks (continued)                  

JPMorgan Chase & Co.

     

3.20%, 06/15/26

    USD       200     $ 221,991  

(3 mo. LIBOR US + 1.25%),
3.96%, 01/29/27(h)

      24       27,337  

(3 mo. LIBOR US + 1.34%),
3.78%, 02/01/28(h)

      27,927       31,583,544  

(3 mo. LIBOR US + 1.38%),
3.54%, 05/01/28(h)

      32,156       35,888,977  

(Secured Overnight Financing Rate + 1.89%), 2.18%, 06/01/28(h)

      9,395       9,724,902  

(3 mo. LIBOR US + 0.95%),
3.51%, 01/23/29(h)

      32       35,745  

(3 mo. LIBOR US + 1.26%),

4.20%, 07/23/29(h)

      3,535       4,144,663  

(3 mo. LIBOR US + 1.16%),
3.70%, 05/06/30(h)

      2,250       2,584,665  

(Secured Overnight Financing Rate + 3.79%), 4.49%, 03/24/31(h)

      9,675       11,794,526  

(3 mo. LIBOR US + 1.36%),
3.88%, 07/24/38(h)

      1,912       2,245,359  

(3 mo. LIBOR US + 1.38%),
3.96%, 11/15/48(h)

      1,509       1,845,475  

(Secured Overnight Financing Rate + 2.44%), 3.11%, 04/22/51(h)

      23,824       25,652,122  

Kasikornbank PCL, (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 1.70%), 3.34%, 10/02/31(h)

      1,940       1,860,581  

KeyCorp

     

4.15%, 10/29/25

      803       920,675  

4.10%, 04/30/28

      718       833,250  

2.55%, 10/01/29

      3,481       3,603,253  

Lloyds Banking Group PLC

     

4.05%, 08/16/23

      901       978,937  

3.75%, 01/11/27

      6,060       6,708,329  

4.38%, 03/22/28

      1,586       1,840,293  

Mitsubishi UFJ Financial Group, Inc.

     

3.54%, 07/26/21

      1,810       1,867,588  

3.00%, 02/22/22

      3,776       3,912,444  

2.62%, 07/18/22

      6,043       6,276,736  

2.67%, 07/25/22

      540       561,298  

3.46%, 03/02/23

      28,006       29,938,542  

3.76%, 07/26/23

      9,728       10,553,531  

3.20%, 07/18/29

      1,119       1,223,672  

Mizuho Financial Group, Inc.

     

2.63%, 04/12/21(b)

      7,490       7,613,258  

2.27%, 09/13/21

      5,639       5,751,832  

2.95%, 02/28/22

      43,598       45,213,480  

(3 mo. LIBOR US + 0.98%),
2.84%, 07/16/25(h)

      797       835,896  

(3 mo. LIBOR US + 1.10%),
2.56%, 09/13/25(h)

      18,319       19,085,921  

3.66%, 02/28/27

      352       388,407  

Royal Bank of Scotland Group PLC, (3 mo. LIBOR US + 1.48%), 3.50%, 05/15/23(h)

      696       722,590  

Santander UK Group Holdings PLC, 2.88%, 08/05/21

      12,877       13,158,389  

Shinhan Financial Group Co. Ltd., (5 yr.

     

U.S. Treasury Yield Curve Rate T Note

     

Constant Maturity + 1.50%),
3.34%, 02/05/30(h)

      1,025       1,072,086  

Shizuoka Bank Ltd., (3 mo. LIBOR US - 0.50%), 0.49%, 01/25/23(a)(i)

      200       185,298  
 

 

 

  15


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  
Banks (continued)                  

Standard Chartered PLC, (3 mo. LIBOR US + 1.08%), 3.89%, 03/15/24(b)(h)

    USD           2,885     $     3,039,388  

Sumitomo Mitsui Financial Group, Inc.

     

2.70%, 07/16/24

      16,297       17,264,554  

2.35%, 01/15/25

      11,070       11,569,379  

3.04%, 07/16/29

      555       597,090  

Washington Mutual Escrow Bonds

     

0.00%, (c)(f)(g)(j)

      13,308       1  

0.00%, (c)(f)(g)(j)

      11,911       1  

0.00%, (c)(f)(g)(j)

      2,570        

0.00%, (c)(f)(g)(j)

      3,115        

Wells Fargo & Co.

     

3.75%, 01/24/24

      6,345       6,932,853  

3.55%, 09/29/25

      5,912       6,602,135  

(3 mo. LIBOR US + 0.83%), 2.41%, 10/30/25(h)

      4,567       4,754,239  

3.00%, 04/22/26

      7,336       8,010,928  

3.00%, 10/23/26

      4,873       5,310,439  

(3 mo. LIBOR US + 1.17%), 3.20%, 06/17/27(h)

      1,889       2,048,236  

(3 mo. LIBOR US + 1.31%), 3.58%, 05/22/28(h)

      6,434       7,140,933  

(Secured Overnight Financing Rate + 2.10%), 2.39%, 06/02/28(h)

      2,099       2,168,717  

(3 mo. LIBOR US + 1.17%), 2.88%, 10/30/30(h)

      9,615       10,286,061  

(Secured Overnight Financing Rate + 2.53%), 3.07%, 04/30/41(h)

      18,795       19,604,800  

Wells Fargo Bank NA, (3 mo. LIBOR US + 0.49%), 3.33%, 07/23/21(h)

      13,250       13,271,574  
     

 

 

 
        1,115,727,357  
Beverages — 0.7%                  

Anheuser-Busch Cos. LLC/Anheuser-Busch InBev Worldwide, Inc.

     

4.70%, 02/01/36

      28,831       33,965,052  

4.90%, 02/01/46

      1,214       1,485,554  

Anheuser-Busch InBev Worldwide, Inc.

     

3.50%, 01/12/24

      5,740       6,254,247  

4.00%, 04/13/28

      1,320       1,523,420  

4.75%, 01/23/29

      35,751       43,197,716  

3.50%, 06/01/30

      9,924       11,158,865  

4.90%, 01/23/31

      1,619       2,028,663  

4.38%, 04/15/38

      911       1,034,491  

8.20%, 01/15/39

      560       883,096  

5.45%, 01/23/39

      1,023       1,292,547  

8.00%, 11/15/39

      3,000       4,723,938  

4.95%, 01/15/42

      500       597,215  

Embotelladora Andina SA, 3.95%, 01/21/50(b)

      2,139       2,150,765  

Fomento Economico Mexicano SAB de CV, 3.50%, 01/16/50

      2,730       2,811,791  

Keurig Dr Pepper, Inc.

     

4.06%, 05/25/23

      5,240       5,710,611  

3.40%, 11/15/25

      8,579       9,555,526  

Molson Coors Brewing Co.

     

5.00%, 05/01/42

      1,379       1,460,884  

4.20%, 07/15/46

      1,500       1,459,693  

PepsiCo, Inc.

     

4.45%, 04/14/46

      1,287       1,720,814  

3.45%, 10/06/46

      1,562       1,803,983  

4.00%, 05/02/47

      1,981       2,492,727  
     

 

 

 
                137,311,598  
Security          Par
(000)
    Value  
Biotechnology — 0.7%                  

AbbVie, Inc.

     

2.30%, 11/21/22(b)

    USD           6,787     $     7,020,331  

2.60%, 11/21/24(b)

      29,311       31,116,900  

3.80%, 03/15/25(b)

      12,176       13,509,461  

3.20%, 05/14/26

      3,583       3,939,292  

2.95%, 11/21/26(b)

      2,317       2,520,081  

4.55%, 03/15/35(b)

      5,398       6,546,181  

4.50%, 05/14/35

      9,666       11,643,788  

4.70%, 05/14/45

      4,763       5,987,119  

4.45%, 05/14/46

      114       139,106  

4.88%, 11/14/48

      7,823       10,273,493  

Amgen, Inc.

     

2.45%, 02/21/30

      4,757       5,029,757  

4.40%, 05/01/45

      12,437       15,473,701  

4.66%, 06/15/51

      461       614,585  

Biogen, Inc., 2.25%, 05/01/30

      5,319       5,362,411  

Elanco Animal Health, Inc.

     

4.66%, 08/27/21

      212       216,240  

5.02%, 08/28/23

      3,230       3,391,500  

5.65%, 08/28/28

      437       484,546  

Gilead Sciences, Inc.

     

4.60%, 09/01/35

      1,584       2,078,553  

4.80%, 04/01/44

      5,022       6,791,510  

4.50%, 02/01/45

      4,002       5,203,918  
     

 

 

 
        137,342,473  
Building Products — 0.1%                  

Johnson Controls International plc

     

4.63%, 07/02/44

      1,483       1,676,389  

5.13%, 09/14/45

      7       8,433  

Masonite International Corp.

     

5.75%, 09/15/26(b)

      120       123,600  

5.38%, 02/01/28(b)

      1,697       1,735,182  

Owens Corning

     

3.95%, 08/15/29

      1,900       2,069,914  

4.30%, 07/15/47

      1,312       1,332,978  

Standard Industries, Inc.

     

6.00%, 10/15/25(b)

      657       676,230  

5.00%, 02/15/27(b)

      1,674       1,694,925  

4.75%, 01/15/28(b)

      597       605,209  
     

 

 

 
        9,922,860  
Capital Markets — 1.9%                  

Bank of New York Mellon Corp., (3 mo. LIBOR US + 1.07%), 3.44%, 02/07/28(h)

      6,475       7,345,408  

CCTI 2017 Ltd., 3.63%, 08/08/22

      1,675       1,688,086  

Charles Schwab Corp., 3.20%, 03/02/27

      3,391       3,785,520  

Cindai Capital Ltd., 0.00%, 02/08/23(i)(k)

      2,461       2,428,689  

Credit Suisse AG

     

1.00%, 05/05/23

      1,761       1,770,572  

2.95%, 04/09/25

      2,456       2,666,641  

Credit Suisse Group AG, (3 mo. LIBOR US + 1.20%), 3.00%, 12/14/23(b)(h)

      8,280       8,618,116  

Credit Suisse Group Funding Guernsey Ltd.

     

3.80%, 09/15/22

      9,654       10,257,057  

3.80%, 06/09/23

      3,341       3,597,263  

Deutsche Bank AG

     

2.70%, 07/13/20

      12,042       12,044,529  

2.95%, 08/20/20

      925       925,767  

4.25%, 02/04/21

      2,930       2,963,064  

E*TRADE Financial Corp., 3.80%, 08/24/27

      785       870,645  

Goldman Sachs Group, Inc.

     

2.35%, 11/15/21

      4,591       4,620,216  

5.75%, 01/24/22

      2,338       2,522,328  
 

 

 

16  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Capital Markets (continued)                  

Goldman Sachs Group, Inc.

     

(3 mo. LIBOR US + 0.99%), 2.91%, 07/24/23(h)

    USD       193     $ 200,509  

3.50%, 01/23/25

      8,127       8,847,509  

3.50%, 04/01/25

      26,758       29,340,350  

(3 mo. LIBOR US + 1.20%), 3.27%, 09/29/25(h)

      3,652       3,935,684  

3.75%, 02/25/26

      3,474       3,874,550  

(3 mo. LIBOR US + 1.17%), 1.56%, 05/15/26(a)

      10,315       10,239,659  

3.85%, 01/26/27

      4,846       5,466,360  

(3 mo. LIBOR US + 1.51%), 3.69%, 06/05/28(h)

      22,253       24,928,061  

3.80%, 03/15/30

      2,532       2,874,202  

Intercontinental Exchange, Inc.

     

3.10%, 09/15/27

      1,680       1,869,832  

3.75%, 09/21/28

      5,126       5,988,875  

Lehman Brothers Holdings, Inc., 6.75%, 12/28/17(c)(f)(g)

      7,360       1  

Moody’s Corp.

     

2.75%, 12/15/21

      470       483,670  

4.88%, 02/15/24

      1,978       2,235,214  

3.75%, 03/24/25

      906       1,026,783  

3.25%, 01/15/28

      4,450       4,938,446  

Morgan Stanley

     

3.88%, 04/29/24

      1,010       1,116,834  

3.70%, 10/23/24

      9,381       10,402,470  

(Secured Overnight Financing Rate + 1.15%), 2.72%, 07/22/25(h)

      5       5,305  

4.00%, 07/23/25

      18,642       21,137,161  

(Secured Overnight Financing Rate + 1.99%), 2.19%, 04/28/26(h)

      31,086       32,367,028  

3.13%, 07/27/26

      2,858       3,150,374  

3.63%, 01/20/27

      30,604       34,553,174  

(3 mo. LIBOR US + 1.34%), 3.59%, 07/22/28(h)

      1,846       2,075,788  

(3 mo. LIBOR US + 1.63%), 4.43%, 01/23/30(h)

      11,021       13,130,723  

(Secured Overnight Financing Rate + 1.14%), 2.70%, 01/22/31(h)

      3,514       3,722,331  

(Secured Overnight Financing Rate + 3.12%), 3.62%, 04/01/31(h)

      14,830       16,941,405  

Nomura Holdings, Inc., 3.10%, 01/16/30

      3,704       3,858,061  

Northern Trust Corp., 3.15%, 05/03/29

      3,064       3,488,226  

Poseidon Finance 1 Ltd.,
0.00%, 02/01/25(i)(k)

      2,640       2,557,369  

State Street Corp.

     

2.65%, 05/19/26

      2,996       3,287,096  

(Secured Overnight Financing Rate + 2.65%), 3.15%, 03/30/31(b)(h)

      224       251,069  

UBS Group AG

     

(3 mo. LIBOR US + 0.95%), 2.86%, 08/15/23(b)(h)

      18,674       19,341,776  

4.13%, 09/24/25(b)

      11,625       13,176,410  

4.13%, 04/15/26(b)

      4,551       5,179,052  

4.25%, 03/23/28(b)

      1,726       1,958,737  
     

 

 

 
        364,053,995  
Chemicals — 0.3%                  

Cydsa SAB de CV, 6.25%, 10/04/27(b)

      2,170       2,123,887  

Dow Chemical Co.

     

9.00%, 04/01/21

      3,960       4,137,574  

4.55%, 11/30/25

      1,962       2,236,186  

3.63%, 05/15/26

      6,474       7,128,935  
Security         

Par

(000)

    Value  
Chemicals (continued)                  

Dow Chemical Co. 1.88%, 03/15/40

    EUR       9,429     $ 9,764,854  

DuPont de Nemours, Inc., 4.49%, 11/15/25

    USD       17,273           19,867,474  

LG Chem Ltd., 0.00%, 04/16/21(i)(k)

    EUR       300       345,291  

LYB International Finance BV,
4.88%, 03/15/44

    USD       3,606       4,254,986  

Mitsubishi Chemical Holdings Corp.

     

0.00%, 03/30/22(i)(k)

    JPY       150,000       1,356,496  

0.00%, 03/29/24(i)(k)

      40,000       362,121  

Rock International Investment, Inc., 6.63%, 03/27/20(f)(g)

    USD       500       180,434  

RPM International, Inc., 4.25%, 01/15/48

      155       152,539  

Sasol Financing USA LLC, 5.88%, 03/27/24

      1,461       1,311,247  

Sherwin-Williams Co.

     

4.20%, 01/15/22

      2,800       2,911,944  

2.95%, 08/15/29

      5,806       6,241,678  

4.00%, 12/15/42

      971       1,038,910  
     

 

 

 
        63,414,556  
Commercial Services & Supplies — 0.2%  

Beijing Environment Bvi Co. Ltd., 5.30%, 10/18/21

      680       686,494  

Clean Harbors, Inc., 4.88%, 07/15/27(b)

      2,288       2,350,920  

Conservation Fund, 3.47%, 12/15/29

      1,008       1,081,844  

KAR Auction Services, Inc.,
5.13%, 06/01/25(b)

      2,696       2,655,560  

Republic Services, Inc.

     

3.55%, 06/01/22

      120       126,065  

4.75%, 05/15/23

      5,974       6,620,916  

2.50%, 08/15/24

      5,350       5,690,862  

2.90%, 07/01/26

      2,994       3,271,034  

3.38%, 11/15/27

      410       459,841  

3.95%, 05/15/28

      11,362       13,268,434  

Waste Management, Inc.

     

3.13%, 03/01/25

      1,035       1,129,550  

3.90%, 03/01/35

      492       582,299  

Waste Pro USA, Inc., 5.50%, 02/15/26(b)

      1,398       1,334,377  
     

 

 

 
        39,258,196  
Communications Equipment — 0.1%                  

Motorola Solutions, Inc.

     

4.60%, 02/23/28

      237       269,546  

4.60%, 05/23/29

      10,242       11,819,210  

5.50%, 09/01/44

      6,050       6,795,047  
     

 

 

 
        18,883,803  
Construction & Engineering — 0.0%                  

China City Construction International Co. Ltd., 5.35%, 07/03/17(f)(g)

    CNH       340       2,642  

GMR Hyderabad International Airport Ltd., 5.38%, 04/10/24

    USD       200       193,000  

IHS Netherlands Holdco BV, 8.00%, 09/18/27(b)

      2,135       2,165,691  

Zhengzhou Real Estate Group Co. Ltd., 3.95%, 10/09/22

      965       965,603  
     

 

 

 
        3,326,936  
Construction Materials — 0.0%                  

Summit Materials LLC/Summit Materials Finance Corp., 6.13%, 07/15/23

      1,708       1,700,399  

U.S. Concrete, Inc., 6.38%, 06/01/24

      1,627       1,606,663  
     

 

 

 
        3,307,062  
Consumer Finance — 0.9%                  

Alpha Holding SA de CV,
9.00%, 02/10/25(b)

      3,084       2,753,434  

American Express Co.

     

3.70%, 08/03/23

      6,764       7,355,865  

2.50%, 07/30/24

      8,596       9,098,285  
 

 

 

  17


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Consumer Finance (continued)                  

American Express Co.

     

4.20%, 11/06/25

    USD       2,799     $ 3,252,817  

3.13%, 05/20/26

      9,388           10,404,871  

American Express Credit Corp., 2.60%, 09/14/20

      48       48,123  

Capital One Financial Corp. 3.45%, 04/30/21

      161       164,370  

4.75%, 07/15/21

      546       569,332  

3.90%, 01/29/24

      11,506       12,512,593  

3.20%, 02/05/25

      1,160       1,245,492  

Discover Bank, 4.65%, 09/13/28

      14,850       17,055,076  

Discover Financial Services

     

4.50%, 01/30/26

      4,031       4,516,965  

4.10%, 02/09/27

      952       1,040,526  

Ford Motor Credit Co. LLC

     

3.16%, 08/04/20

      250       248,488  

3.20%, 01/15/21

      2,007       1,976,895  

5.75%, 02/01/21

      7,810       7,839,678  

3.34%, 03/18/21

      1,500       1,484,565  

General Motors Financial Co., Inc.

     

5.20%, 03/20/23

      23,557       25,175,747  

3.70%, 05/09/23

      5,410       5,559,747  

5.10%, 01/17/24

      2,093       2,237,198  

4.00%, 01/15/25

      15,405       16,103,725  

4.35%, 04/09/25

      3,899       4,108,345  

2.75%, 06/20/25

      13,693       13,524,656  

Hyundai Capital Services, Inc., 3.00%, 08/29/22(b)

      7,790       7,962,841  

Navient Corp.

     

5.88%, 03/25/21

      1,549       1,521,893  

6.63%, 07/26/21

      1,857       1,819,860  

6.50%, 06/15/22

      2,529       2,484,743  

7.25%, 09/25/23

      1,473       1,439,695  

5.88%, 10/25/24

      1,377       1,293,526  

6.75%, 06/25/25

      1,446       1,379,123  

6.75%, 06/15/26

      1,424       1,317,200  

Synchrony Financial

     

4.38%, 03/19/24

      1,140       1,193,246  

4.25%, 08/15/24

      570       598,575  

Toyota Motor Credit Corp.

     

3.20%, 01/11/27

      53       58,983  

3.38%, 04/01/30

      6,204       7,146,152  
     

 

 

 
        176,492,630  
Containers & Packaging — 0.1%                  

Ardagh Packaging Finance PLC/Ardagh Holdings USA, Inc.

     

4.13%, 08/15/26(b)

      299       294,171  

5.25%, 08/15/27(b)

      2,217       2,177,936  

Ball Corp.

     

5.25%, 07/01/25

      597       652,969  

4.88%, 03/15/26

      448       487,200  

International Paper Co.

     

5.00%, 09/15/35

      332       404,874  

6.00%, 11/15/41

      2,411       3,178,021  

4.80%, 06/15/44

      286       341,108  

4.40%, 08/15/47

      855       1,007,393  

4.35%, 08/15/48

      5       5,900  

Owens-Brockway Glass Container, Inc. 5.00%, 01/15/22(b)

      223       223,268  
Security         

Par

(000)

    Value  
Containers & Packaging (continued)                  

Owens-Brockway Glass Container, Inc. 5.88%, 08/15/23(b)

    USD       2,010     $     2,070,300  

Reynolds Group Issuer, Inc./Reynolds Group Issuer LLC/Reynolds Group Issuer Luxembourg, 7.00%, 07/15/24(b)

      155       155,435  
     

 

 

 
        10,998,575  
Diversified Consumer Services — 0.1%                  

American University, 3.67%, 04/01/49

      4,301       4,733,253  

Bright Scholar Education Holdings Ltd., 7.45%, 07/31/22

      200       204,940  

China Education Group Holdings Ltd., 2.00%, 03/28/24(i)

    HKD       8,000       1,096,849  

Claremont Mckenna College, 3.38%, 01/01/50

    USD       2,978       3,256,230  

Ford Foundation, 2.42%, 06/01/50

      2,710       2,777,401  

George Washington University, 4.13%, 09/15/48

      2,354       2,876,004  

Massachusetts Institute of Technology, 3.96%, 07/01/38

      1,385       1,751,855  

Northeastern University, 2.89%, 10/01/50

      1,875       1,900,253  

University of Southern California, 3.03%, 10/01/39

      246       267,969  

Wesleyan University, 4.78%, 07/01/2116

      1,285       1,511,574  

Yale University, 1.48%, 04/15/30

      5,512       5,571,292  
     

 

 

 
        25,947,620  
Diversified Financial Services — 1.0%                  

ANLLIAN Capital Ltd., 0.00%, 02/05/25(i)(k)

    EUR       800       835,394  

ASG Finance Designated Activity Co., 7.88%, 12/03/24(b)

    USD       4,445       3,022,600  

AXA Equitable Holdings, Inc., 3.90%, 04/20/23

      880       941,949  

Azul Investments LLP, 5.88%, 10/26/24(b)

      234       101,790  

Baoxin Auto Finance I Ltd., (3 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 8.91%), 5.63%(h)(j)

      300       219,750  

Capitol Investment Merger Sub 2 LLC, 10.00%, 08/01/24(b)

      4,232       4,222,690  

China Huadian Overseas Development 2018 Ltd., (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity +
6.07%), 3.38%(h)(j)

      2,165       2,186,650  

CK Hutchison International 17 II Ltd., 3.25%, 09/29/27

      600       644,062  

CNH Industrial Capital LLC, 4.38%, 11/06/20

      13,090       13,205,954  

Coastal Emerald Ltd.

     

(5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 7.45%), 4.30%, (h)(j)

      1,190       1,195,950  

3.95%, 08/01/22

      695       690,489  

Deutsche Telekom International Finance BV, 3.60%, 01/19/27(b)

      4,339       4,856,684  

Easy Tactic Ltd.

     

9.13%, 07/28/22

      200       190,793  

8.63%, 02/27/24

      830       746,222  

8.13%, 07/11/24

      800       699,000  

Fortune Star BVI Ltd.

     

5.95%, 01/29/23

      200       199,000  

6.85%, 07/02/24

      340       343,825  

GE Capital International Funding Co., 4.42%, 11/15/35

      9,940       10,106,528  

GlaxoSmithKline Capital PLC, 3.38%, 06/01/29

      1,018       1,170,646  

GlaxoSmithKline Capital, Inc., 3.88%, 05/15/28

      9,842       11,587,179  

Grupo Aval Ltd., 4.38%, 02/04/30(b)

      4,177       3,957,707  

Guojing Capital BVI Ltd., 3.95%, 12/11/22

      498       509,049  

Holcim U.S. Finance S.a.r.l & Cie SCS, 5.15%, 09/12/23(b)

      2,325       2,548,460  
 

 

 

18  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Diversified Financial Services (continued)  

Hyundai Capital America

     

3.95%, 02/01/22(b)

    USD       3,655     $ 3,761,223  

2.38%, 02/10/23(b)

      15,891       15,913,565  

Intercorp Peru Ltd., 3.88%, 08/15/29(b)

      789       768,289  

Latam Finance Ltd., 6.88%, 04/11/24(f)(g)

      873       237,892  

Manappuram Finance Ltd., 5.90%, 01/13/23

      200       187,250  

Muthoot Finance Ltd.

     

6.13%, 10/31/22(b)

      2,411       2,438,124  

4.40%, 09/02/23(b)

      406       386,967  

4.40%, 09/02/23

      200       190,624  

New Lion Bridge Co. Ltd., 9.75%, 10/10/20

      430       421,400  

ORIX Corp., 2.90%, 07/18/22

      4,137       4,282,574  

Pacific National Finance Pty Ltd., 4.75%, 03/22/28

      1,100       1,130,118  

Pearl Holding III Ltd., 9.50%, 12/11/22

      600       158,400  

Prime Bloom Holdings Ltd., 6.95%, 07/05/22

      890       279,598  

Quicken Loans, Inc.

     

5.75%, 05/01/25(b)

      3,385       3,460,452  

5.25%, 01/15/28(b)

      3,322       3,427,905  

RELX Capital, Inc.

     

3.50%, 03/16/23

      6,730       7,176,744  

4.00%, 03/18/29

      8,959       10,404,486  

3.00%, 05/22/30

      7,679       8,276,426  

Santos Finance Ltd., 5.25%, 03/13/29

      1,500       1,600,937  

Shell International Finance BV

     

3.88%, 11/13/28

      8,877       10,322,240  

2.38%, 11/07/29

      8,575       9,048,409  

3.63%, 08/21/42

      1,539       1,682,519  

4.38%, 05/11/45

      6,362       7,827,353  

3.75%, 09/12/46

      1,275       1,435,308  

Total Capital International SA

     

2.75%, 06/19/21

      875       894,942  

2.88%, 02/17/22

      680       705,817  

3.70%, 01/15/24

      3,644       4,020,768  

2.43%, 01/10/25

      4,468       4,747,817  

Trust Fibra Uno

     

5.25%, 12/15/24(b)

      2,925       3,084,961  

6.95%, 01/30/44(b)

      2,925       3,160,828  

USAA Capital Corp., 2.13%, 05/01/30(b)

      3,190       3,285,135  

Viva Incubator Investment Management Ltd., 2.50%, 02/11/25(i)

      600       880,436  
     

 

 

 
        179,781,878  
Diversified Telecommunication Services — 1.4%  

AT&T Inc.

     

3.40%, 06/15/22

      116       122,023  

0.00%, 11/27/22(b)(k)

      36,000       35,227,663  

4.45%, 04/01/24

      4,090       4,595,208  

3.55%, 06/01/24

      1,185       1,296,567  

3.40%, 05/15/25

      1,877       2,062,746  

3.60%, 07/15/25

      1,448       1,608,550  

3.80%, 02/15/27

      217       244,401  

4.25%, 03/01/27

      2,842       3,237,441  

4.50%, 05/15/35

      14,502       17,209,512  

3.15%, 09/04/36

    EUR       1,800       2,285,439  

2.60%, 05/19/38

      11,000       13,051,081  

6.00%, 08/15/40

    USD       7,343       9,961,225  

5.35%, 09/01/40

      700       880,046  

5.15%, 03/15/42

      2,188       2,731,072  

4.90%, 06/15/42

      2,043       2,452,973  

4.65%, 06/01/44

      2,343       2,678,172  

4.80%, 06/15/44

      2,069       2,450,193  

4.85%, 07/15/45

      4,680       5,561,207  
Security         

Par

(000)

    Value  
Diversified Telecommunication Services (continued)  

AT&T Inc.

     

4.75%, 05/15/46

    USD       1,932     $ 2,316,159  

5.15%, 11/15/46

      2,587       3,204,383  

5.45%, 03/01/47

      2,314       3,027,920  

Axtel SAB de CV, 6.38%, 11/14/24(b)

      2,921       3,033,517  

Comunicaciones Celulares SA Via Comcel Trust, 6.88%, 02/06/24

      1,530       1,564,685  

Connect Finco S.a.r.l/Connect U.S. Finco LLC, 6.75%, 10/01/26(b)

      5,764       5,461,390  

Digicel International Finance Ltd./Digicel Holdings Bermuda Ltd.

     

8.75%, 05/25/24(b)

      1,109       1,081,096  

(6.00% Cash or 7.00% PIK), 13.00%, 12/31/25(b)(l)

      561       475,899  

8.00%, 12/31/26(b)

      443       269,971  

Empresa Nacional de Telecomunicaciones SA, 4.75%, 08/01/26(b)

      6,698       7,118,718  

Level 3 Financing, Inc.

     

5.13%, 05/01/23

      1,858       1,858,000  

5.38%, 01/15/24

      3,830       3,858,725  

5.25%, 03/15/26

      2,579       2,649,922  

4.63%, 09/15/27(b)

      597       601,477  

4.25%, 07/01/28(b)

      8,811       8,800,867  

Network i2i Ltd., (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 4.27%), 5.65%(h)(j)

      200       193,438  

Telefonica del Peru SAA, 7.38%, 04/10/27(b)

    PEN       3,500       990,107  

UPC Holding BV, 5.50%, 01/15/28(b)

    USD       1,479       1,420,387  

Verizon Communications, Inc.

     

4.13%, 03/16/27

      22,613       26,672,614  

4.33%, 09/21/28

      5,112       6,152,407  

3.88%, 02/08/29

      16,847       19,911,430  

4.02%, 12/03/29

      2,321       2,767,975  

4.27%, 01/15/36

      24,543       30,352,062  

1.85%, 05/18/40

    EUR       4,290       4,924,815  

5.50%, 03/16/47

    USD       2,184       3,234,799  

4.52%, 09/15/48

      2,809       3,715,774  

Series 20Y, 2.88%, 01/15/38

    EUR       4,400       5,945,013  

Ziggo BV

     

5.50%, 01/15/27(b)

    USD       5,252       5,317,965  

4.88%, 01/15/30(b)

      1,372       1,379,436  
     

 

 

 
        265,956,470  
Electric Utilities — 2.4%                  

Adani Electricity Mumbai Ltd.

     

3.95%, 02/12/30(b)

      2,519       2,348,180  

3.95%, 02/12/30

      1,919       1,788,868  

Adani Transmission Ltd.

     

4.00%, 08/03/26

      662       657,862  

4.25%, 05/21/36

      1,646       1,581,958  

AEP Texas, Inc.

     

3.95%, 06/01/28

      10,571       12,023,047  

4.15%, 05/01/49

      950       1,122,767  

3.45%, 01/15/50

      1,440       1,551,967  

AEP Transmission Co. LLC

     

4.00%, 12/01/46

      1,806       2,168,604  

4.25%, 09/15/48

      2,195       2,722,546  

3.80%, 06/15/49

      4,475       5,275,772  

3.15%, 09/15/49

      3,515       3,784,147  

3.65%, 04/01/50

      1,807       2,089,203  

Alabama Power Co.

     

3.55%, 12/01/23

      885       964,341  

6.00%, 03/01/39

      215       310,401  
 

 

 

  19


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Electric Utilities (continued)                  

Alabama Power Co.

     

4.15%, 08/15/44

    USD       290     $ 346,771  

3.75%, 03/01/45

      4,887       5,543,883  

4.30%, 07/15/48

      2,138       2,633,971  

3.45%, 10/01/49

      4,816       5,256,578  

Baltimore Gas & Electric Co.

     

3.50%, 08/15/46

      4,197       4,690,563  

3.75%, 08/15/47

      2,530       2,927,133  

4.25%, 09/15/48

      1,490       1,855,932  

3.20%, 09/15/49

      2,000       2,128,659  

2.90%, 06/15/50

      163       166,675  

Bi Hai Co. Ltd., 6.25%, 03/05/22

      400       407,125  

CenterPoint Energy Houston Electric LLC

     

3.55%, 08/01/42

      2,240       2,499,098  

3.95%, 03/01/48

      549       665,720  

Commonwealth Edison Co., 2.95%, 08/15/27

      1,200       1,316,957  

Dayton Power & Light Co., 3.95%, 06/15/49

      4,998       5,369,142  

DTE Electric Co.

     

2.95%, 03/01/50

      1,742       1,806,710  

Series A, 4.05%, 05/15/48

      6,639       8,154,842  

Duke Energy Carolinas LLC

     

3.95%, 11/15/28

      1,701       2,022,498  

2.45%, 08/15/29

      5,675       6,094,757  

2.45%, 02/01/30

      6,078       6,527,400  

4.00%, 09/30/42

      1,150       1,384,180  

3.75%, 06/01/45

      1,177       1,372,790  

3.88%, 03/15/46

      3,172       3,782,756  

3.70%, 12/01/47

      3,085       3,633,718  

3.20%, 08/15/49

      4,863       5,421,221  

Duke Energy Florida LLC

     

3.80%, 07/15/28

      2,807       3,277,179  

2.50%, 12/01/29

      18,416       19,904,801  

1.75%, 06/15/30

      10,500       10,643,461  

3.40%, 10/01/46

      2,103       2,340,832  

4.20%, 07/15/48

      53       66,784  

Duke Energy Ohio, Inc.,

     

3.65%, 02/01/29

      10,872       12,563,999  

Duke Energy Progress LLC

     

3.00%, 09/15/21

      1,710       1,747,077  

3.70%, 09/01/28

      10,090       11,719,810  

3.45%, 03/15/29

      4,103       4,709,930  

4.10%, 05/15/42

      2,372       2,857,556  

4.10%, 03/15/43

      3,648       4,391,881  

4.20%, 08/15/45

      260       321,422  

3.70%, 10/15/46

      49       57,187  

Edison International

     

2.40%, 09/15/22

      139       140,761  

3.13%, 11/15/22

      10       10,293  

3.55%, 11/15/24

      3,527       3,717,134  

Entergy Arkansas LLC, 4.20%, 04/01/49

      1,197       1,512,712  

Entergy Louisiana LLC

     

5.40%, 11/01/24

      1,470       1,741,500  

4.20%, 09/01/48

      7,609       9,732,148  

Eversource Energy, 2.90%, 10/01/24

      5,710       6,124,380  

Exelon Corp.

     

4.95%, 06/15/35

      530       653,073  

5.10%, 06/15/45

      70       90,321  

FirstEnergy Corp.

     

2.05%, 03/01/25

      1,392       1,435,999  

2.65%, 03/01/30

      5,567       5,810,686  

3.40%, 03/01/50

      4,237       4,473,921  

FirstEnergy Transmission LLC 4.35%, 01/15/25(b)

      13,860       15,675,205  
Security         

Par

(000)

    Value  
Electric Utilities (continued)                  

FirstEnergy Transmission LLC

     

5.45%, 07/15/44(b)

    USD       1,121     $ 1,448,565  

4.55%, 04/01/49(b)

      5,868       7,130,041  

Florida Power & Light Co.

     

3.25%, 06/01/24

      60       65,017  

3.95%, 03/01/48

      7,001       8,803,196  

3.15%, 10/01/49

      11,814       13,431,388  

Generacion Mediterranea SA/Generacion Frias SA/Central Termica Roca SA,
9.63%, 07/27/23(b)

      4,333       2,189,519  

Huachen Energy Co. Ltd.,
6.63%, 05/18/20(f)(g)

      200       79,062  

ITC Holdings Corp., 2.70%, 11/15/22

      3,406       3,550,734  

LLPL Capital Pte Ltd., 6.88%, 02/04/39

      625       683,815  

MidAmerican Energy Co.

     

3.10%, 05/01/27

      390       438,093  

3.65%, 04/15/29

      10,406       12,419,354  

3.65%, 08/01/48

      1,020       1,208,159  

4.25%, 07/15/49

      2,933       3,783,466  

3.15%, 04/15/50

      3,370       3,824,438  

Mid-Atlantic Interstate Transmission LLC, 4.10%, 05/15/28(b)

      992       1,130,850  

Mong Duong Finance Holdings BV, 5.13%, 05/07/29

      796       792,766  

Northern States Power Co.

     

3.40%, 08/15/42

      3,707       4,200,513  

4.00%, 08/15/45

      1,610       1,955,267  

3.60%, 09/15/47

      1,658       1,941,218  

2.90%, 03/01/50

      2,475       2,685,095  

NSTAR Electric Co.

     

3.20%, 05/15/27

      2,007       2,254,773  

3.25%, 05/15/29

      825       936,034  

3.95%, 04/01/30

      1,883       2,273,912  

Ohio Power Co.

     

6.60%, 02/15/33

      3,415       4,756,046  

4.00%, 06/01/49

      3,666       4,444,382  

Oncor Electric Delivery Co. LLC

     

3.70%, 11/15/28

      5,350       6,276,267  

5.75%, 03/15/29

      480       629,259  

2.75%, 05/15/30(b)

      856       934,227  

3.80%, 09/30/47

      2,314       2,818,852  

3.80%, 06/01/49

      187       226,394  

3.10%, 09/15/49

      3,583       3,950,130  

Public Service Electric & Gas Co.

     

2.38%, 05/15/23

      990       1,032,220  

3.65%, 09/01/28

      6,843       7,862,560  

3.20%, 05/15/29

      1,531       1,725,654  

Southern California Edison Co.

     

2.90%, 03/01/21

      2,215       2,253,301  

1.85%, 02/01/22

      2,405       2,407,714  

3.70%, 08/01/25

      11,997       13,252,457  

4.20%, 03/01/29

      1,808       2,109,286  

2.25%, 06/01/30

      9,815       9,910,191  

3.60%, 02/01/45

      1,389       1,482,241  

3.65%, 02/01/50

      5,415       5,942,703  

Southern Co. Gas Capital Corp., 3.95%, 10/01/46

      45       49,668  

Tampa Electric Co.

     

4.35%, 05/15/44

      1,190       1,456,447  

4.30%, 06/15/48

      1,207       1,524,400  

4.45%, 06/15/49

      2,671       3,411,053  

Tohoku Electric Power Co., Inc., 0.00%, 12/03/20(i)(k)

    JPY       110,000       1,010,272  
 

 

 

20  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Electric Utilities (continued)                  

Trans-Allegheny Interstate Line Co., 3.85%, 06/01/25(b)

    USD       16,579     $ 18,610,200  

Vistra Operations Co. LLC

     

3.55%, 07/15/24(b)

      10,161       10,486,914  

5.50%, 09/01/26(b)

      4,297       4,384,831  

5.63%, 02/15/27(b)

      4,376       4,491,308  

5.00%, 07/31/27(b)

      3,804       3,846,795  

4.30%, 07/15/29(b)

      9,553       10,043,562  
     

 

 

 
        448,673,403  
Electrical Equipment — 0.3%                  

Carrier Global Corp.

     

1.92%, 02/15/23(b)

      14,677       14,961,087  

2.24%, 02/15/25(b)

      24,285       24,829,434  

Otis Worldwide Corp.

     

2.06%, 04/05/25(b)

      10,151       10,649,321  

2.29%, 04/05/27(b)

      935       976,405  

Suzlon Energy Ltd., 5.75%, 07/16/19(f)(g)(i)

      500       127,714  
     

 

 

 
        51,543,961  
Electronic Equipment, Instruments & Components — 0.0%  

Corning, Inc.

     

3.70%, 11/15/23

      775       822,425  

4.38%, 11/15/57

      4,068       4,674,904  

Hon Hai Precision Industry Co. Ltd., 0.00%, 11/06/22(i)(k)

      600       612,000  
     

 

 

 
        6,109,329  
Energy Equipment & Services — 0.1%                  

Hilong Holding Ltd., 8.25%, 09/26/22

      250       93,750  

Odebrecht Drilling Norbe VIII/IX Ltd., 6.35%, 12/01/21(b)

      486       411,919  

Pioneer Energy Services Corp.

     

(11.00% Cash or 11.00% PIK), 11.00%, 05/15/25(b)(l)

      2,983       2,386,206  

(5.00% Cash or 5.00% PIK), 5.00%, 11/15/25(b)(i)(l)

      2,034       1,099,267  

Transocean Guardian Ltd., 5.88%, 01/15/24(b)

      993       863,491  

Transocean Phoenix 2 Ltd., 7.75%, 10/15/24(b)

      7,556       7,083,375  

Transocean Proteus Ltd.,
6.25%, 12/01/24(b)

      758       690,281  
     

 

 

 
        12,628,289  
Equity Real Estate Investment Trusts (REITs) — 1.1%  

American Tower Corp.

     

3.00%, 06/15/23

      3       3,199  

3.38%, 05/15/24

      3,600       3,908,507  

2.95%, 01/15/25

      660       717,907  

2.40%, 03/15/25

      12,994       13,717,976  

2.75%, 01/15/27

      1,252       1,344,611  

3.95%, 03/15/29

      1,825       2,077,219  

3.80%, 08/15/29

      8,966       10,147,494  

Boston Properties LP

     

3.85%, 02/01/23

      3,521       3,759,632  

3.13%, 09/01/23

      2,102       2,223,320  

CC Holdings GS V LLC/Crown Castle GS III Corp., 3.85%, 04/15/23

      2,211       2,387,941  

Cibanco SA Ibm/PLA Administradora Industrial S de RL de CV, 4.96%, 07/18/29(b)

      391       377,315  

Crown Castle International Corp.

     

2.25%, 09/01/21

      80       80,668  

4.88%, 04/15/22

      144       153,833  

3.15%, 07/15/23

      2,323       2,479,002  

3.20%, 09/01/24

      17,943       19,470,499  

1.35%, 07/15/25

      5,279       5,316,619  

4.45%, 02/15/26

      2,370       2,716,695  
Security         

Par

(000)

    Value  
Equity Real Estate Investment Trusts (REITs) (continued)  

Crown Castle International Corp.

     

3.70%, 06/15/26

    USD       5,925     $ 6,629,674  

3.80%, 02/15/28

      474       532,774  

4.30%, 02/15/29

      1,324       1,535,315  

3.10%, 11/15/29

      14,492       15,535,260  

5.20%, 02/15/49

      581       770,522  

4.15%, 07/01/50

      1,362       1,596,137  

Equinix, Inc.

     

2.63%, 11/18/24

      4,960       5,280,515  

1.25%, 07/15/25

      9,210       9,207,697  

GLP Capital LP/GLP Financing II, Inc., 4.00%, 01/15/31

      2,938       2,916,700  

MGM Growth Properties Operating Partnership

     

LP/MGP Finance Co-Issuer, Inc.

     

5.63%, 05/01/24

      6,235       6,453,350  

4.63%, 06/15/25(b)

      802       784,260  

4.50%, 09/01/26

      1,730       1,713,219  

5.75%, 02/01/27

      4,235       4,340,875  

MPT Operating Partnership LP/MPT Finance Corp.

     

5.25%, 08/01/26

      299       310,213  

5.00%, 10/15/27

      4,705       4,834,388  

4.63%, 08/01/29

      537       539,685  

National Retail Properties, Inc., 2.50%, 04/15/30

      4,195       4,006,359  

Prologis Euro Finance LLC, 1.50%, 09/10/49

    EUR       3,600       3,850,643  

Realty Income Corp.

     

4.65%, 08/01/23

    USD       5       5,521  

4.13%, 10/15/26

      2,631       3,009,149  

3.00%, 01/15/27

      865       915,655  

3.25%, 01/15/31

      2,320       2,510,022  

Ryman Hospitality Properties, Inc., 4.75%, 10/15/27(b)

      2,358       2,098,620  

Service Properties Trust

     

5.00%, 08/15/22

      3,010       2,955,887  

4.50%, 06/15/23

      2,140       2,048,903  

4.35%, 10/01/24

      1,505       1,356,462  

7.50%, 09/15/25

      1,479       1,558,177  

VICI Properties LP/VICI Note Co., Inc.

     

3.50%, 02/15/25(b)

      26,650       25,051,000  

4.25%, 12/01/26(b)

      13,700       13,117,750  

3.75%, 02/15/27(b)

      4,326       4,066,440  

4.63%, 12/01/29(b)

      597       582,075  

4.13%, 08/15/30(b)

      5,173       4,933,749  
     

 

 

 
        205,929,433  
Food & Staples Retailing — 0.5%                  

Albertsons Cos., Inc./Safeway, Inc./New Albertsons LP/Albertsons LLC

     

3.50%, 02/15/23(b)

      3,289       3,330,112  

6.63%, 06/15/24

      3,405       3,490,125  

5.75%, 03/15/25

      7,645       7,812,272  

7.50%, 03/15/26(b)

      3,937       4,251,960  

4.63%, 01/15/27(b)

      806       806,000  

5.88%, 02/15/28(b)

      3,317       3,422,381  

4.88%, 02/15/30(b)

      597       610,809  

Alimentation Couche-Tard, Inc., 3.55%, 07/26/27(b)

      12,317       13,225,698  

CVS Health Corp.

     

4.10%, 03/25/25

      15,398       17,414,248  

3.88%, 07/20/25

      472       530,455  

3.75%, 04/01/30

      19,940       22,972,999  

5.30%, 12/05/43

      1,240       1,621,636  

5.13%, 07/20/45

      11,932       15,374,373  
 

 

 

  21


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Food & Staples Retailing (continued)                  

Performance Food Group, Inc.,
5.50%, 10/15/27(b)

    USD       3,012     $ 2,906,580  

Walmart, Inc., 3.70%, 06/26/28

      4,071       4,820,700  
     

 

 

 
        102,590,348  
Food Products — 0.3%                  

BRF GmbH, 4.35%, 09/29/26(b)

      2,256       2,177,040  

Campbell Soup Co., 8.88%, 05/01/21

      2,350       2,482,191  

CP Foods Capital Ltd., 0.50%, 06/18/25(i)

      400       403,000  

Darling Ingredients, Inc.,
5.25%, 04/15/27(b)

      1,690       1,736,948  

JBS Investments II GmbH

     

7.00%, 01/15/26(b)

      3,405       3,573,548  

5.75%, 01/15/28(b)

      2,508       2,479,308  

JBS USA LUX SA/JBS USA Finance, Inc.

     

5.75%, 06/15/25(b)

      2,836       2,860,815  

6.75%, 02/15/28(b)

      4,011       4,229,098  

JBS USA LUX SA/JBS USA Food Co./JBS USA Finance, Inc.

     

6.50%, 04/15/29(b)

      4,974       5,278,657  

5.50%, 01/15/30(b)

      746       764,650  

Knight Castle Investments Ltd.,
7.99%, 01/23/21

      700       466,375  

Lamb Weston Holdings, Inc.

     

4.63%, 11/01/24(b)

      2,776       2,880,100  

4.88%, 11/01/26(b)

      2,790       2,887,650  

Mondelez International, Inc.,
2.75%, 04/13/30

      1,636       1,761,052  

Pilgrim’s Pride Corp., 5.88%, 09/30/27(b)

      5,344       5,345,069  

Post Holdings, Inc. 5.75%, 03/01/27(b)

      3,722       3,842,965  

5.63%, 01/15/28(b)

      2,728       2,823,480  

5.50%, 12/15/29(b)

      2,156       2,229,563  

Sigma Finance Netherlands BV,
4.88%, 03/27/28(b)

      2,163       2,326,577  

Simmons Foods, Inc., 5.75%, 11/01/24(b)

      1,440       1,368,000  
     

 

 

 
        51,916,086  
Gas Utilities — 0.0%                  

Atmos Energy Corp., 3.38%, 09/15/49

      2,607       2,929,555  

Piedmont Natural Gas Co., Inc.,
3.64%, 11/01/46

      427       463,039  

Promigas SA ESP/Gases del Pacifico SAC, 3.75%, 10/16/29

      1,460       1,438,556  
     

 

 

 
        4,831,150  
Health Care Equipment & Supplies — 0.2%  

Becton Dickinson and Co.,
3.30%, 03/01/23

      4,494       4,702,757  

Boston Scientific Corp.

     

3.45%, 03/01/24

      12,317       13,342,009  

1.90%, 06/01/25

      4,938       5,117,555  

Edwards Lifesciences Corp.,
4.30%, 06/15/28

      171       203,868  

Medtronic Global Holdings SCA,
1.75%, 07/02/49

    EUR       3,500       3,827,987  

Teleflex, Inc., 4.63%, 11/15/27

    USD       1,667       1,762,369  
     

 

 

 
        28,956,545  
Health Care Providers & Services — 1.8%  

Aetna, Inc. 4.50%, 05/15/42

      2,558       3,042,847  

4.13%, 11/15/42

      10       11,245  

4.75%, 03/15/44

      1,023       1,231,074  

AMN Healthcare, Inc., 5.13%, 10/01/24(b)

      4,520       4,520,000  

Anthem, Inc.

     

3.65%, 12/01/27

      6,450       7,348,871  

4.10%, 03/01/28

      2,442       2,861,802  
Security         

Par

(000)

    Value  
Health Care Providers & Services (continued)  

Centene Corp.

     

5.25%, 04/01/25(b)

    USD       2,566     $ 2,642,133  

5.38%, 06/01/26(b)

      12,003       12,443,030  

5.38%, 08/15/26(b)

      2,500       2,600,525  

4.25%, 12/15/27

      8,294       8,558,662  

4.63%, 12/15/29

      2,090       2,204,950  

CHRISTUS Health, 4.34%, 07/01/28

      15,081       17,034,968  

Cigna Corp.

     

3.20%, 09/17/20

      5,035       5,063,136  

3.00%, 07/15/23(b)

      1,605       1,706,155  

3.75%, 07/15/23

      65       70,557  

3.50%, 06/15/24(b)

      905       988,520  

3.25%, 04/15/25(b)

      4,621       5,044,048  

4.13%, 11/15/25

      1,330       1,528,871  

3.40%, 03/01/27(b)

      822       905,473  

3.05%, 10/15/27(b)

      1,656       1,799,776  

4.38%, 10/15/28

      20,605       24,385,789  

Cottage Health Obligated Group, 3.30%, 11/01/49

      10,759       11,788,618  

DaVita, Inc.

     

5.00%, 05/01/25

      4,898       5,008,205  

4.63%, 06/01/30(b)

      6,689       6,656,893  

DH Europe Finance II S.a.r.l

     

1.35%, 09/18/39

    EUR       4,795       5,122,518  

1.80%, 09/18/49

      3,600       3,870,340  

Encompass Health Corp.

     

4.50%, 02/01/28

    USD       1,372       1,315,913  

4.75%, 02/01/30

      1,382       1,319,810  

HCA, Inc.

     

4.75%, 05/01/23

      11,051       11,990,421  

5.00%, 03/15/24

      5,341       5,936,528  

5.38%, 02/01/25

      1,552       1,662,580  

5.25%, 04/15/25

      21,253       24,374,269  

5.88%, 02/15/26

      896       982,240  

5.25%, 06/15/26

      1,140       1,317,068  

5.38%, 09/01/26

      597       649,984  

5.63%, 09/01/28

      896       1,000,160  

5.88%, 02/01/29

      597       675,559  

4.13%, 06/15/29

      6,614       7,295,821  

Humana, Inc.

     

4.50%, 04/01/25

      4,430       5,043,718  

3.13%, 08/15/29

      2,294       2,484,648  

4.88%, 04/01/30

      1,496       1,847,237  

Molina Healthcare, Inc., 5.38%, 11/15/22

      2,368       2,415,360  

Ochsner Clinic Foundation, 5.90%, 05/15/45

      734       944,583  

PeaceHealth Obligated Group,
4.79%, 11/15/48

      462       612,225  

RWJ Barnabas Health, Inc., 3.48%, 07/01/49

      1,409       1,485,124  

Select Medical Corp., 6.25%, 08/15/26(b)

      14,365       14,522,297  

Sutter Health, 3.70%, 08/15/28

      2,463       2,755,525  

Tenet Healthcare Corp.

     

4.63%, 07/15/24

      4,979       4,878,374  

4.63%, 09/01/24(b)

      9,353       9,142,558  

5.13%, 05/01/25

      8,459       8,164,711  

4.88%, 01/01/26(b)

      15,230       14,830,213  

6.25%, 02/01/27(b)

      9,396       9,325,530  

5.13%, 11/01/27(b)

      896       884,083  

4.63%, 06/15/28(b)

      511       497,816  

UnitedHealth Group, Inc.

     

3.75%, 07/15/25

      18,821       21,443,262  

3.70%, 12/15/25

      4,035       4,624,575  

3.10%, 03/15/26

      2,398       2,676,129  

2.95%, 10/15/27

      11,106       12,390,057  
 

 

 

22  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Health Care Providers & Services (continued)  

UnitedHealth Group, Inc.

     

3.85%, 06/15/28

    USD       863     $ 1,020,742  

5.80%, 03/15/36

      5       7,069  

6.50%, 06/15/37

      231       351,755  

2.75%, 05/15/40

      12,353       13,224,317  

4.63%, 11/15/41

      2,362       3,098,635  

4.75%, 07/15/45

      4,326       5,826,719  

4.20%, 01/15/47

      1,634       2,072,799  

4.25%, 04/15/47

      50       64,205  

3.75%, 10/15/47

      1,148       1,369,865  
     

 

 

 
        344,963,490  
Hotels, Restaurants & Leisure — 1.0%                  

1011778 BC ULC/New Red Finance, Inc.

     

5.00%, 10/15/25(b)

      8,681       8,629,869  

3.88%, 01/15/28(b)

      448       434,636  

Aramark Services, Inc.

     

4.75%, 06/01/26

      1,657       1,594,863  

5.00%, 02/01/28(b)

      3,857       3,664,150  

Boyd Gaming Corp.

     

8.63%, 06/01/25(b)

      1,656       1,730,520  

6.38%, 04/01/26

      1,848       1,755,600  

6.00%, 08/15/26

      1,726       1,613,292  

Caesars Resort Collection LLC/CRC Finco, Inc., 5.25%, 10/15/25(b)

      4,652       4,047,240  

Cedar Fair LP, 5.25%, 07/15/29(b)

      3,581       3,240,805  

Cedar Fair LP/Canada’s Wonderland Co./Magnum Management Corp./Millennium Op

     

5.50%, 05/01/25(b)

      6,059       6,089,295  

5.38%, 04/15/27

      3,117       2,789,715  

Churchill Downs, Inc.

     

5.50%, 04/01/27(b)

      3,722       3,643,094  

4.75%, 01/15/28(b)

      1,701       1,641,465  

Colt Merger Sub, Inc.

     

5.75%, 07/01/25(b)

      2,601       2,615,826  

6.25%, 07/01/25(b)

      13,890       13,803,187  

8.13%, 07/01/27(b)

      4,331       4,184,829  

Eldorado Resorts, Inc., 6.00%, 09/15/26

      1,525       1,647,488  

Golden Nugget, Inc., 6.75%, 10/15/24(b)

      3,550       2,551,563  

Hilton Domestic Operating Co., Inc.

     

5.13%, 05/01/26

      4,106       4,088,057  

4.88%, 01/15/30

      597       588,045  

Hilton Worldwide Finance LLC/Hilton Worldwide Finance Corp.

     

4.63%, 04/01/25

      2,955       2,889,133  

4.88%, 04/01/27

      2,561       2,500,176  

HIS Co. Ltd., 0.00%, 11/15/24(i)(k)

    JPY       40,000       325,000  

Hyatt Hotels Corp., 5.38%, 04/23/25

    USD       4,131       4,377,453  

International Game Technology PLC 6.25%, 02/15/22(b)

      2,025       2,043,984  

6.50%, 02/15/25(b)

      3,422       3,499,029  

6.25%, 01/15/27(b)

      448       459,200  

IRB Holding Corp., 7.00%, 06/15/25(b)

      1,742       1,795,479  

Marriott International, Inc., 4.63%, 06/15/30

      2,084       2,162,390  

Marriott Ownership Resorts, Inc., 6.13%, 09/15/25(b)

      3,879       3,966,277  

Marriott Ownership Resorts, Inc./ILG LLC, 6.50%, 09/15/26

      3,289       3,313,667  

McDonald’s Corp.

     

3.63%, 05/01/43

      2,482       2,723,457  

4.88%, 12/09/45

      5,602       7,168,763  

4.45%, 09/01/48

      2,753       3,401,231  
Security         

Par

(000)

    Value  
Hotels, Restaurants & Leisure (continued)                  

McDonald’s Corp. 3.63%, 09/01/49

    USD       9,758     $ 10,706,818  

Melco Resorts Finance Ltd.,
5.38%, 12/04/29(b)

      537       535,490  

MGM China Holdings Ltd.

     

5.38%, 05/15/24(b)

      2,481       2,519,580  

5.88%, 05/15/26(b)

      2,506       2,581,180  

MGM Resorts International

     

5.75%, 06/15/25

      392       387,598  

4.63%, 09/01/26

      229       208,390  

5.50%, 04/15/27

      390       375,375  

NCL Corp. Ltd., 3.63%, 12/15/24(b)

      856       523,230  

REXLot Holdings Ltd., 4.50%, 04/17/19(f)(g)(i)

    HKD       1,161       14,978  

Sands China Ltd., 4.38%, 06/18/30

    USD       1,962       2,043,325  

Scientific Games International, Inc.,
5.00%, 10/15/25(b)

      3,693       3,409,599  

SeaWorld Parks & Entertainment, Inc., 8.75%, 05/01/25(b)

      4,134       4,175,340  

Starbucks Corp., 2.55%, 11/15/30

      9,403       9,863,256  

Station Casinos LLC, 5.00%, 10/01/25(b)

      1,495       1,315,600  

Studio City Finance Ltd., 7.25%, 02/11/24

      200       205,688  

Viking Cruises Ltd., 5.88%, 09/15/27(b)

      2,359       1,404,478  

Wyndham Hotels & Resorts, Inc.,
5.38%, 04/15/26(b)

      1,681       1,617,963  

Wynn Las Vegas LLC/Wynn Las Vegas Capital Corp.

     

5.50%, 03/01/25(b)

      6,222       5,693,130  

5.25%, 05/15/27(b)

      3,101       2,680,814  

Wynn Macau Ltd.

     

4.88%, 10/01/24(b)

      3,585       3,513,300  

5.50%, 10/01/27(b)

      2,511       2,471,766  

5.50%, 10/01/27

      200       196,875  

5.13%, 12/15/29(b)

      597       588,045  

Wynn Resorts Finance LLC/Wynn Resorts Capital Corp.

     

7.75%, 04/15/25(b)

      5,371       5,409,671  

5.13%, 10/01/29(b)

      5,182       4,631,412  
     

 

 

 
        178,051,679  
Household Durables — 0.5%                  

Ashton Woods USA LLC/Ashton Woods Finance Co.

     

6.75%, 08/01/25(b)

      1,069       1,050,293  

9.88%, 04/01/27(b)

      3,448       3,663,500  

6.63%, 01/15/28(b)

      6,260       6,150,450  

Beazer Homes USA, Inc., 7.25%, 10/15/29

      4,961       4,812,170  

Brookfield Residential Properties, Inc./Brookfield Residential U.S. Corp., 6.25%, 09/15/27(b)

      6,893       6,591,845  

Century Communities, Inc., 6.75%, 06/01/27

      7,145       7,180,725  

DR Horton, Inc., 2.60%, 10/15/25

      8,338       8,764,088  

Harvest International Co., 0.00%, 11/21/22(i)(k)

    HKD       8,000       1,059,518  

KB Home, 7.63%, 05/15/23

    USD       1,769       1,928,210  

Lennar Corp.

     

2.95%, 11/29/20

      20       20,022  

8.38%, 01/15/21

      755       778,594  

4.75%, 04/01/21

      1,788       1,809,599  

4.13%, 01/15/22

      1,350       1,366,875  

4.50%, 04/30/24

      1,533       1,593,998  

5.88%, 11/15/24

      4,092       4,471,533  

4.75%, 05/30/25

      299       319,183  

5.25%, 06/01/26

      60       64,800  

4.75%, 11/29/27

      537       582,645  

LGI Homes, Inc., 6.88%, 07/15/26(b)

      1,069       1,087,707  

M/I Homes, Inc., 4.95%, 02/01/28

      5,263       5,230,106  
 

 

 

  23


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security  

Par

(000)

    Value  
Household Durables (continued)  

Mattamy Group Corp.

   

5.25%, 12/15/27(b)

  USD     3,110     $ 3,094,450  

4.63%, 03/01/30(b)

    3,535       3,393,600  

PulteGroup, Inc.

   

4.25%, 03/01/21

    152       153,520  

5.50%, 03/01/26

    418       455,871  

5.00%, 01/15/27

    562       601,340  

6.00%, 02/15/35

    53       61,003  

Taylor Morrison Communities, Inc., 5.88%, 06/15/27(b)

    299       309,686  

Tempur Sealy International, Inc., 5.50%, 06/15/26

    3,695       3,731,950  

Toll Brothers Finance Corp.

   

4.38%, 04/15/23

    5,264       5,461,400  

3.80%, 11/01/29

    5,508       5,538,294  

TRI Pointe Group, Inc.

   

5.25%, 06/01/27

    2,378       2,366,110  

5.70%, 06/15/28

    333       337,995  

Weekley Homes LLC/Weekley Finance Corp., 6.00%, 02/01/23

    2,274       2,256,945  

William Lyon Homes, Inc., 6.00%, 09/01/23

    3,857       3,943,782  
   

 

 

 
      90,231,807  
Household Products — 0.0%  

Clorox Co., 3.10%, 10/01/27

    900       984,698  

Kimberly-Clark de Mexico SAB de CV, 2.43%, 07/01/31(b)

    1,908       1,931,850  

Spectrum Brands, Inc., 5.75%, 07/15/25

    2,442       2,506,151  
   

 

 

 
      5,422,699  
Independent Power and Renewable Electricity Producers — 0.3%  

Calpine Corp.

   

5.50%, 02/01/24

    1,399       1,395,503  

5.25%, 06/01/26(b)

    8,264       8,344,243  

4.50%, 02/15/28(b)

    15,793       15,398,175  

China Shuifa Singyes Energy Holdings Ltd., (6.00% Cash or 6.00% PIK), 6.00%, 12/19/22(l)

    340       289,421  

Colbun SA, 3.15%, 03/06/30(b)

    675       678,164  

Genneia SA, 8.75%, 01/20/22(b)

    83       66,504  

NRG Energy, Inc.

   

7.25%, 05/15/26

    8,865       9,352,575  

6.63%, 01/15/27

    5,276       5,506,825  

5.75%, 01/15/28

    2,783       2,936,065  

5.25%, 06/15/29(b)

    3,165       3,323,250  

2.75%, 06/01/48(i)

    2,906       2,938,004  

Orazul Energy Egenor S en C por A, 5.63%, 04/28/27(b)

    607       597,895  

ReNew Power Pvt Ltd., 5.88%, 03/05/27

    200       191,000  

ReNew Power Synthetic, 6.67%, 03/12/24

    1,000       1,006,563  

Star Energy Geothermal Wayang Windu Ltd., 6.75%, 04/24/33(b)

    181       188,032  

Stoneway Capital Corp.

   

10.00%, 03/01/27(f)(g)

    4,059       1,385,006  

10.00%, 03/01/27(b)(f)(g)

    4,327       1,476,575  

Talen Energy Supply LLC

   

6.50%, 06/01/25

    1,999       1,319,340  

10.50%, 01/15/26(b)

    1,956       1,545,240  

7.25%, 05/15/27(b)

    3,184       3,168,080  
   

 

 

 
          61,106,460  
Industrial Conglomerates — 0.2%  

3M Co., 2.38%, 08/26/29

    3,687       3,984,731  

General Electric Co., 5.88%, 01/14/38

    13,269       14,976,570  
Security  

Par

(000)

    Value  
Industrial Conglomerates (continued)  

Grupo KUO SAB De CV, 5.75%, 07/07/27(b)

  USD     4,285     $ 3,922,971  

Honeywell International, Inc.
2.70%, 08/15/29

    1,451       1,599,975  

0.75%, 03/10/32

  EUR   7,580       8,327,542  

Tyco Electronics Group SA
3.45%, 08/01/24

  USD   865       935,348  

3.13%, 08/15/27

    1,669       1,819,423  
   

 

 

 
      35,566,560  
Insurance — 0.4%  

Ambac Assurance Corp., 5.10%(b)(j)

    462       619,352  

Ambac LSNI LLC, (3 mo. LIBOR US + 5.00%), 6.00%, 02/12/23(a)(b)

    2,528       2,496,516  

Aon Corp.
4.50%, 12/15/28

    8,643       10,283,404  

3.75%, 05/02/29

    15,704       17,980,568  

Aon PLC,
4.75%, 05/15/45

    1,475       1,845,574  

Marsh & McLennan Cos., Inc.
4.05%, 10/15/23

    2,451       2,689,536  

3.88%, 03/15/24

    4,043       4,472,409  

3.50%, 06/03/24

    8,930       9,786,211  

3.50%, 03/10/25

    3,288       3,638,432  

1.35%, 09/21/26

  EUR   4,390       5,147,636  

1.98%, 03/21/30

    3,035       3,743,044  

2.25%, 11/15/30

  USD   5,332       5,533,289  

MetLife, Inc., 4.72%, 12/15/44

    1,873       2,358,723  

Principal Financial Group, Inc., 3.70%, 05/15/29

    2,435       2,770,390  

QBE Insurance Group Ltd., (USD Swap Rate 11:00 am NY 10Y + 4.40%),
5.88%, 06/17/46(h)

    450       476,017  

Travelers Cos., Inc., 6.25%, 06/15/37

    65       96,443  

Trinity Acquisition PLC, 4.40%, 03/15/26

    1,765       2,010,655  

Union Life Insurance Co. Ltd., 3.00%, 09/19/21

    229       206,917  

Willis North America, Inc.
3.60%, 05/15/24

    2,050       2,218,689  

3.88%, 09/15/49

    777       857,114  
   

 

 

 
          79,230,919  
Interactive Media & Services — 0.1%  

Baidu, Inc.
4.38%, 05/14/24

    3,320       3,615,580  

3.08%, 04/07/25

    1,425       1,491,367  

Tencent Holdings Ltd.
3.24%, 06/03/50(b)

    3,790       3,825,209  

3.24%, 06/03/50

    2,350       2,371,831  
   

 

 

 
      11,303,987  
Internet & Direct Marketing Retail — 0.3%  

Alibaba Group Holding Ltd., 3.60%, 11/28/24

    5,095       5,541,271  

Amazon.com, Inc., 3.88%, 08/22/37

    6,410       7,936,900  

Baozun, Inc., 1.63%, 05/01/24(i)

    258       248,779  

Booking Holdings, Inc., 4.10%, 04/13/25

    20,288       22,770,824  

Expedia Group, Inc.
6.25%, 05/01/25(b)

    5,251       5,593,749  

3.80%, 02/15/28

    2,973       2,847,623  

3.25%, 02/15/30

    5,730       5,342,337  

Netflix, Inc.
5.88%, 02/15/25

    478       528,190  

4.38%, 11/15/26

    597       620,981  

4.88%, 04/15/28

    955       1,021,153  

5.88%, 11/15/28

    1,134       1,291,343  

6.38%, 05/15/29

    478       554,480  
 

 

 

24  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security  

Par

(000)

    Value  
Internet & Direct Marketing Retail (continued)  

Netflix, Inc.
5.38%, 11/15/29(b)

  USD   537     $ 588,122  

4.88%, 06/15/30(b)

    597       640,283  
   

 

 

 
      55,526,035  
IT Services — 1.1%            

21Vianet Group, Inc., 7.88%, 10/15/21

    685       691,686  

DXC Technology Co.
4.00%, 04/15/23

    6,655       6,984,550  

4.13%, 04/15/25

    1,330       1,418,137  

Fidelity National Information Services, Inc.

 

3.00%, 08/15/26

    5,100       5,650,818  

1.00%, 12/03/28

  EUR     10,500       11,653,599  

2.95%, 05/21/39

    4,400       5,653,709  

Fiserv, Inc.
4.75%, 06/15/21

  USD   960       998,147  

3.20%, 07/01/26

    21,724       24,044,338  

3.50%, 07/01/29

    13,009       14,623,688  

2.65%, 06/01/30

    2,255       2,389,330  

Global Payments, Inc.
3.80%, 04/01/21

    1,910       1,944,601  

3.75%, 06/01/23

    2,350       2,531,341  

4.00%, 06/01/23

    236       255,839  

4.80%, 04/01/26

    4,157       4,865,360  

2.90%, 05/15/30

    4,631       4,859,562  

International Business Machines Corp.
3.30%, 05/15/26

    21,470       24,125,228  

1.95%, 05/15/30

    22,284       22,793,049  

4.15%, 05/15/39

    2,600       3,148,106  

2.85%, 05/15/40

    9,573       9,968,321  

Leidos, Inc., 4.38%, 05/15/30(b)

    11,000       12,390,950  

Mastercard, Inc.
2.95%, 06/01/29

    17,164       19,296,941  

3.35%, 03/26/30

    6,428       7,430,735  

PayPal Holdings, Inc.
1.65%, 06/01/25

    4,546       4,699,411  

2.65%, 10/01/26

    3,510       3,814,427  

Sabre GLBL, Inc., 5.25%, 11/15/23(b)

    300       276,000  

Transcosmos, Inc., 0.00%, 12/22/20(i)(k)

  JPY   40,000       378,537  

Visa, Inc.
1.90%, 04/15/27

  USD   6,452       6,743,761  

2.75%, 09/15/27

    3,727       4,109,329  

4.15%, 12/14/35

    1,092       1,396,870  

2.70%, 04/15/40

    3,019       3,230,428  
   

 

 

 
          212,366,798  
Leisure Products — 0.1%            

Hasbro, Inc.
2.60%, 11/19/22

    12,338       12,769,001  

3.90%, 11/19/29

    1,450       1,509,956  
   

 

 

 
      14,278,957  
Life Sciences Tools & Services — 0.3%  

Agilent Technologies, Inc.
3.88%, 07/15/23

    4,383       4,735,469  

3.05%, 09/22/26

    9,644       10,566,638  

2.75%, 09/15/29

    2,205       2,396,609  

Avantor, Inc., 6.00%, 10/01/24(b)

    1,212       1,266,540  

Charles River Laboratories International, Inc.
5.50%, 04/01/26(b)

    1,408       1,464,320  

4.25%, 05/01/28(b)

    758       757,613  

IQVIA, Inc.
5.00%, 10/15/26(b)

    3,518       3,618,967  

5.00%, 05/15/27(b)

    3,707       3,798,517  
Security  

Par

(000)

    Value  
Life Sciences Tools & Services (continued)            

Jaguar Holding Co. II/PPD Development LP, 5.00%, 06/15/28(b)

  USD   904     $ 925,470  

Thermo Fisher Scientific, Inc.
4.13%, 03/25/25

    5,964       6,799,988  

4.50%, 03/25/30

    3,037       3,764,167  

1.88%, 10/01/49

  EUR     7,400       7,928,329  
   

 

 

 
          48,022,627  
Machinery — 0.2%            

China Conch Venture Holdings International

   

Ltd., 0.00%, 09/05/23(i)(k)

  HKD 6,000       830,988  

CNH Industrial NV, 3.85%, 11/15/27

  USD 790       832,603  

Colfax Corp., 6.00%, 02/15/24(b)

    2,044       2,107,875  

Deere & Co., 2.75%, 04/15/25

    1,360       1,485,134  

HTA Group Ltd., 7.00%, 12/18/25(b)

    2,290       2,312,900  

Parker-Hannifin Corp.
2.70%, 06/14/24

    9,940       10,581,251  

3.25%, 06/14/29

    1,783       1,970,070  

Terex Corp., 5.63%, 02/01/25(b)

    4,180       3,803,800  

Vertical U.S. Newco, Inc., 5.25%, 07/15/27(b)

    5,290       5,290,000  
   

 

 

 
      29,214,621  
Media — 2.1%            

Altice France SA
7.38%, 05/01/26(b)

    15,115       15,761,922  

8.13%, 02/01/27(b)

    5,275       5,769,531  

5.50%, 01/15/28(b)

    3,005       3,035,050  

AMC Networks, Inc.
5.00%, 04/01/24

    3,289       3,256,110  

4.75%, 08/01/25

    3,348       3,298,450  

CCO Holdings LLC/CCO Holdings Capital Corp.

 

5.75%, 02/15/26(b)

    5,720       5,916,425  

5.50%, 05/01/26(b)

    3,389       3,508,666  

5.13%, 05/01/27(b)

    8,329       8,617,183  

5.88%, 05/01/27(b)

    1,819       1,898,036  

5.00%, 02/01/28(b)

    10,487       10,827,827  

5.38%, 06/01/29(b)

    3,505       3,697,775  

4.75%, 03/01/30(b)

    4,054       4,148,012  

Charter Communications Operating LLC/Charter Communications Operating Capital (3 mo. LIBOR US + 1.65%),
2.34%, 02/01/24(a)

    208       208,669  

6.38%, 10/23/35

    9,751       12,885,684  

6.48%, 10/23/45

    19,187       25,369,949  

5.38%, 05/01/47

    6,160       7,274,451  

5.13%, 07/01/49

    3,555       4,105,699  

6.83%, 10/23/55

    1,405       1,893,111  

Clear Channel Worldwide Holdings, Inc., 5.13%, 08/15/27(b)

    3,843       3,689,280  

Comcast Corp.
4.15%, 10/15/28

    14,620       17,526,122  

2.65%, 02/01/30

    3,735       4,062,029  

3.40%, 04/01/30

    32,588       37,215,666  

4.25%, 10/15/30

    1,770       2,168,963  

1.95%, 01/15/31

    16,801       16,991,714  

4.40%, 08/15/35

    1,772       2,194,241  

3.20%, 07/15/36

    1,660       1,835,768  

1.25%, 02/20/40

  EUR   4,600       4,990,758  

4.75%, 03/01/44

  USD   8       10,532  

4.60%, 08/15/45

    2,191       2,816,675  

3.40%, 07/15/46

    6,345       7,048,868  

4.00%, 08/15/47

    1,415       1,704,400  

3.97%, 11/01/47

    4,449       5,275,062  

4.70%, 10/15/48

    5,283       7,105,222  
 

 

 

  25


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Media (continued)  

Comcast Corp.
4.00%, 11/01/49

  USD     945     $ 1,141,218  

2.80%, 01/15/51

    5,014       5,141,783  

Cox Communications, Inc.
3.25%, 12/15/22(b)

    2,960       3,119,335  

3.15%, 08/15/24(b)

        19,141           20,595,067  

3.35%, 09/15/26(b)

    574       634,739  

3.50%, 08/15/27(b)

    284       313,523  

CSC Holdings LLC
10.88%, 10/15/25(b)

    577       620,275  

7.50%, 04/01/28(b)

    3,177       3,466,901  

5.75%, 01/15/30(b)

    6,441       6,708,302  

Diamond Sports Group LLC/Diamond Sports Finance Co.
5.38%, 08/15/26(b)

    1,821       1,317,949  

6.63%, 08/15/27(b)

    5,099       2,715,218  

Discovery Communications LLC
3.80%, 03/13/24

    1,390       1,489,641  

5.00%, 09/20/37

    7,047       8,340,673  

4.95%, 05/15/42

    275       312,922  

4.88%, 04/01/43

    833       950,230  

5.20%, 09/20/47

    2,919       3,396,023  

5.30%, 05/15/49

    905       1,083,156  

Gray Television, Inc.
5.88%, 07/15/26(b)

    1,994       1,984,768  

7.00%, 05/15/27(b)

    2,255       2,311,375  

iHeartCommunications, Inc.
6.38%, 05/01/26

    3,559       3,523,178  

5.25%, 08/15/27(b)

    3,210       3,073,575  

4.75%, 01/15/28(b)

    299       275,828  

JOYY, Inc., 0.75%, 06/15/25(i)

    166       183,103  

Lamar Media Corp.
5.75%, 02/01/26

    2,213       2,282,975  

3.75%, 02/15/28(b)

    358       337,522  

Meredith Corp., 6.88%, 02/01/26

    3,573       2,970,985  

NBCUniversal Media LLC
6.40%, 04/30/40

    89       134,448  

5.95%, 04/01/41

    735       1,090,853  

Nexstar Broadcasting, Inc., 5.63%, 07/15/27(b)

    3,217       3,193,066  

Nielsen Co. Luxembourg S.a.r.l, 5.00%, 02/01/25(b)

    1,349       1,325,393  

Omnicom Group, Inc./Omnicom Capital, Inc.,

   

3.65%, 11/01/24

    805       885,900  

Outfront Media Capital LLC/Outfront Media Capital Corp.
5.00%, 08/15/27(b)

    4,648       4,183,200  

4.63%, 03/15/30(b)

    299       270,595  

Sirius XM Radio, Inc.
4.63%, 07/15/24(b)

    8,075       8,276,875  

5.38%, 04/15/25(b)

    2,706       2,779,062  

5.38%, 07/15/26(b)

    2,752       2,842,100  

5.00%, 08/01/27(b)

    6,435       6,577,020  

5.50%, 07/01/29(b)

    4,240       4,463,109  

TEGNA, Inc.
4.63%, 03/15/28(b)

    4,459       4,102,280  

5.00%, 09/15/29(b)

    657       615,064  

Time Warner Cable LLC
4.00%, 09/01/21

    911       935,242  

6.55%, 05/01/37

    990       1,302,384  

5.50%, 09/01/41

    1,583       1,909,349  

TWDC Enterprises 18 Corp.
3.70%, 12/01/42

    2,383       2,650,647  
Security   Par
(000)
    Value  
Media (continued)  

TWDC Enterprises 18 Corp.
4.13%, 06/01/44

  USD       1,695     $ 2,046,679  

3.00%, 07/30/46

    2,724       2,773,861  

Viacom, Inc., 6.88%, 04/30/36

    3,442       4,664,569  

ViacomCBS, Inc.

   

4.38%, 03/15/43

    3,795       3,968,448  

5.85%, 09/01/43

    1,012       1,190,848  

Walt Disney Co.

   

3.35%, 03/24/25

    13,115       14,538,477  

3.70%, 10/15/25

    1,846       2,083,418  

6.15%, 02/15/41

    64       93,374  

4.75%, 09/15/44

    1,915       2,450,836  

2.75%, 09/01/49

    4,032       3,917,834  

Weibo Corp., 1.25%, 11/15/22(i)

    89       82,765  

Ziggo Bond Co. BV, 6.00%, 01/15/27(b)

    1,779       1,805,685  
   

 

 

 
          401,551,495  
Metals & Mining — 0.2%  

ABJA Investment Co. Pte Ltd., 5.95%, 07/31/24

    200       197,625  

FMG Resources August 2006 Pty Ltd.

   

4.75%, 05/15/22(b)

    2,474       2,521,674  

5.13%, 03/15/23(b)

    1,681       1,727,228  

5.13%, 05/15/24(b)

    2,530       2,605,900  

4.50%, 09/15/27(b)

    358       358,132  

Freeport-McMoRan, Inc.

   

5.00%, 09/01/27

    358       359,678  

5.25%, 09/01/29

    358       366,950  

Industrias Penoles SAB de CV, 4.15%, 09/12/29(b)

    2,975       3,098,648  

Minera Mexico SA de CV, 4.50%, 01/26/50(b)

    1,533       1,523,898  

Newmont Corp.

   

2.80%, 10/01/29

    4,682       4,937,731  

2.25%, 10/01/30

    3,364       3,409,290  

Novolipetsk Steel Via Steel Funding DAC,

   

4.70%, 05/30/26(b)

    3,077       3,370,277  

Nucor Corp., 3.95%, 05/01/28

    2,488       2,855,897  

Steel Dynamics, Inc.

   

2.80%, 12/15/24

    3,750       3,902,677  

2.40%, 06/15/25

    720       741,527  

Teck Resources Ltd., 6.13%, 10/01/35

    1,384       1,570,837  

Vedanta Resources Finance II PLC, 8.00%, 04/23/23

    500       364,613  

Vedanta Resources Ltd., 6.13%, 08/09/24

    586       403,608  

Votorantim SA, 6.75%, 04/05/21(b)

    1,349       1,386,839  
   

 

 

 
      35,703,029  
Multiline Retail — 0.0%  

Dollar General Corp.

   

3.88%, 04/15/27

    5       5,749  

4.13%, 04/03/50

    2,356       2,819,220  

Macy’s, Inc., 8.38%, 06/15/25(b)

    1,286       1,280,200  
   

 

 

 
      4,105,169  
Multi-Utilities — 0.3%  

Ameren Illinois Co.

   

3.80%, 05/15/28

    3,671       4,236,314  

3.70%, 12/01/47

    100       115,588  

3.25%, 03/15/50

    3,650       4,029,522  

Consumers Energy Co.

   

3.95%, 05/15/43

    5       6,038  

3.25%, 08/15/46

    628       700,848  

4.05%, 05/15/48

    1,325       1,666,581  

3.75%, 02/15/50

    5,099       6,218,578  

3.10%, 08/15/50

        6,026       6,704,777  
 

 

 

26  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Multi-Utilities (continued)  

Consumers Energy Co.

   

3.50%, 08/01/51

  USD       3,600     $ 4,266,992  

Dominion Energy Gas Holdings LLC

   

4.80%, 11/01/43

    1,110       1,308,005  

4.60%, 12/15/44

    1,268       1,432,613  

PG&E Corp., 5.00%, 07/01/28

    6,372       6,370,088  

Virginia Electric & Power Co.

   

2.75%, 03/15/23

    6,506       6,842,466  

3.50%, 03/15/27

    3,975       4,507,630  

4.00%, 01/15/43

    5,999       7,137,410  

4.00%, 11/15/46

    1,554       1,841,609  

3.30%, 12/01/49

    1,979       2,193,169  
   

 

 

 
          59,578,228  
Oil, Gas & Consumable Fuels — 2.8%  

Boardwalk Pipelines LP, 4.80%, 05/03/29

    640       681,518  

BP Capital Markets America, Inc.

   

3.79%, 02/06/24

    7,003       7,647,684  

3.80%, 09/21/25

    7,158       8,083,185  

3.41%, 02/11/26

    1,629       1,801,636  

3.12%, 05/04/26

    2,440       2,666,887  

BP Capital Markets PLC

   

3.81%, 02/10/24

    4,525       4,971,726  

3.54%, 11/04/24

    1,889       2,080,771  

Bruin E&P Partners LLC,
8.88%, 08/01/23(b)(f)(g)

    2,601       52,020  

Buckeye Partners LP

   

4.15%, 07/01/23

    1,988       1,933,926  

4.35%, 10/15/24

    2,500       2,362,500  

4.13%, 03/01/25(b)

    1,160       1,112,753  

3.95%, 12/01/26

    358       337,343  

Cameron LNG LLC

   

3.30%, 01/15/35(b)

    7,430       8,191,838  

3.40%, 01/15/38(b)

    11,339       12,179,907  

Cheniere Corpus Christi Holdings LLC

   

5.88%, 03/31/25

    14,310       16,038,247  

5.13%, 06/30/27

    13,464       14,795,200  

Cheniere Energy Partners LP

   

5.25%, 10/01/25

    4,139       4,125,341  

5.63%, 10/01/26

    2,955       2,940,225  

4.50%, 10/01/29(b)

    896       868,000  

Cheniere Energy, Inc., (4.88% Cash or 4.88% PIK) , 4.88%, 05/28/21(b)(i)(l)

    16,055       16,210,345  

Chesapeake Energy Corp.

   

6.63%, 08/15/20(f)(g)

    623       14,018  

6.13%, 02/15/21(f)(g)

    9,090       232,886  

5.38%, 06/15/21(f)(g)

    425       8,500  

Concho Resources, Inc., 3.75%, 10/01/27

    1,707       1,818,484  

CrownRock LP/CrownRock Finance, Inc.,
5.63%, 10/15/25(b)

    3,125       2,800,781  

DCP Midstream Operating LP

   

5.38%, 07/15/25

    493       489,302  

5.13%, 05/15/29

    358       343,458  

Diamondback Energy, Inc., 3.50%, 12/01/29

    11,815       11,443,654  

Enbridge Energy Partners LP, 7.38%, 10/15/45

    658       942,791  

Enbridge, Inc., 2.90%, 07/15/22

    2,018       2,093,503  

Endeavor Energy Resources LP/EER Finance, Inc.

   

5.50%, 01/30/26(b)

    1,718       1,644,985  

5.75%, 01/30/28(b)

    1,351       1,296,960  

Energy Transfer Operating LP

   

3.60%, 02/01/23

    3,265       3,377,735  

4.25%, 03/15/23

    3,843       4,059,697  

4.20%, 09/15/23

    1,335       1,418,441  
Security   Par
(000)
    Value  
Oil, Gas & Consumable Fuels (continued)  

Energy Transfer Operating LP
4.90%, 02/01/24

  USD     113     $ 122,082  

2.90%, 05/15/25

    24,294           24,819,583  

6.50%, 02/01/42

    6,482       7,021,538  

Energy Transfer Partners LP/Regency Energy Finance Corp.
5.88%, 03/01/22

    11,403       12,032,146  

5.00%, 10/01/22

    12,080       12,860,159  

Enterprise Products Operating LLC
3.90%, 02/15/24

    1,928       2,112,562  

6.88%, 03/01/33

    2,153       2,848,236  

6.65%, 10/15/34

    145       195,977  

4.45%, 02/15/43

    6,682       7,402,692  

4.85%, 03/15/44

    3,040       3,521,738  

5.10%, 02/15/45

    3,534       4,210,416  

EOG Resources, Inc., 4.15%, 01/15/26

    1,116       1,284,508  

Exxon Mobil Corp., 1.41%, 06/26/39

  EUR       9,940       11,032,891  

Gran Tierra Energy, Inc.,
7.75%, 05/23/27(b)

  USD   286       127,270  

Great Western Petroleum LLC/Great Western Finance Corp.,
9.00%, 09/30/21(b)

    7,127       4,276,200  

Hammerhead Resources, Inc., 9.00%, 07/10/22

    3,352       3,199,586  

Hess Corp., 5.60%, 02/15/41

    2,000       2,100,922  

HPCL-Mittal Energy Ltd., 5.45%, 10/22/26

    200       190,000  

Kinder Morgan Energy Partners LP
5.80%, 03/15/35

    896       1,035,289  

6.50%, 02/01/37

    6,083       7,619,248  

6.38%, 03/01/41

    2,148       2,639,606  

5.00%, 03/01/43

    267       296,744  

Lukoil Securities BV, 3.88%, 05/06/30(b)

    1,763       1,833,123  

Marathon Petroleum Corp.
4.75%, 12/15/23

    2,680       2,940,962  

4.75%, 09/15/44

    1,372       1,430,253  

5.85%, 12/15/45

    1,915       2,011,611  

Matador Resources Co., 5.88%, 09/15/26

    627       463,980  

Medco Platinum Road Pte Ltd., 6.75%, 01/30/25

    200       185,562  

MPLX LP
3.38%, 03/15/23

    2,055       2,143,012  

4.88%, 12/01/24

    3,250       3,609,661  

4.25%, 12/01/27

    2,445       2,650,788  

NGPL PipeCo LLC
4.38%, 08/15/22(b)

    5,395       5,564,315  

4.88%, 08/15/27(b)

    7,707       8,469,381  

7.77%, 12/15/37(b)

    1,336       1,630,584  

Northwest Pipeline LLC, 4.00%, 04/01/27

    10,855       11,885,463  

NuStar Logistics LP, 4.80%, 09/01/20

    5,090       5,090,000  

Oasis Petroleum, Inc., 6.50%, 11/01/21

    1,547       340,340  

Occidental Petroleum Corp.
2.60%, 08/13/21

    1,800       1,759,122  

0.00%, 10/10/36(k)

    30,220       12,692,400  

Odebrecht Offshore Drilling Finance Ltd.
6.72%, 12/01/22(b)

    842       694,927  

(7.72% Cash or 7.72% PIK),
7.72%, 12/01/26(b)(l)

    41       3,267  

Odebrecht Oil & Gas Finance Ltd.,
0.00%(b)(j)(k)

    193       193  

Parsley Energy LLC/Parsley Finance Corp.,
5.63%, 10/15/27(b)

    643       633,355  

PBF Holding Co. LLC/PBF Finance Corp.,
9.25%, 05/15/25(b)

    5,440       5,807,200  

Plains All American Pipeline LP/PAA Finance Corp., 3.65%, 06/01/22

    184       188,085  
 

 

 

  27


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Oil, Gas & Consumable Fuels (continued)  

PTTEP Treasury Center Co. Ltd.
2.59%, 06/10/27(b)

  USD     490     $ 501,331  

2.59%, 06/10/27

    705       721,303  

Puma International Financing SA
5.13%, 10/06/24(b)

    2,888       2,476,460  

5.00%, 01/24/26(b)

    1,709       1,422,208  

QEP Resources, Inc., 6.88%, 03/01/21

    575       549,125  

Sabine Pass Liquefaction LLC
5.63%, 04/15/23

    6,227       6,810,274  

5.75%, 05/15/24

    16,871       18,999,273  

5.63%, 03/01/25

        34,953       39,948,796      

5.88%, 06/30/26

    7,685       9,029,875  

4.20%, 03/15/28

    5,555       5,963,049  

Seven Generations Energy Ltd., 5.38%, 09/30/25(b)

    643       565,840  

Shelf Drilling Holdings Ltd., 8.50%, 11/15/24(c)

    10,789       8,091,750  

SM Energy Co.
1.50%, 07/01/21(i)

    2,004       1,839,453  

6.13%, 11/15/22

    3,475       2,536,750  

10.00%, 01/15/25(b)

    6,246       5,929,827  

Suncor Energy, Inc.
6.80%, 05/15/38(m)

    1,859       2,400,995  

6.50%, 06/15/38

    1,163       1,467,380  

Sunoco Logistics Partners Operations LP
4.25%, 04/01/24

    11,234       12,020,048  

5.95%, 12/01/25

    2,980       3,391,678  

Sunoco LP/Sunoco Finance Corp.
4.88%, 01/15/23

    1,721       1,695,185  

5.50%, 02/15/26

    1,394       1,352,180  

6.00%, 04/15/27

    1,057       1,046,430  

Talos Production LLC/Talos Production Finance, Inc., 11.00%, 04/03/22

    5,130       4,770,900  

Targa Resources Partners LP/Targa Resources Partners Finance Corp.
6.75%, 03/15/24

    1,594       1,590,015  

5.13%, 02/01/25

    1,818       1,749,825  

5.88%, 04/15/26

    2,941       2,911,590  

5.38%, 02/01/27

    1,690       1,630,850  

6.50%, 07/15/27

    3,372       3,380,430  

5.00%, 01/15/28

    448       421,290  

6.88%, 01/15/29

    2,717       2,846,057  

5.50%, 03/01/30(b)

    597       576,475  

Texas Eastern Transmission LP
3.50%, 01/15/28(b)

    4,737       5,040,797  

4.15%, 01/15/48(b)

    3,170       3,452,717  

Thaioil Treasury Center Co. Ltd., 3.75%, 06/18/50

    2,470       2,446,803  

TransCanada PipeLines Ltd., 5.85%, 03/15/36

    1,026       1,343,244  

Transcontinental Gas Pipe Line Co. LLC
7.85%, 02/01/26

    6,627       8,626,066  

4.00%, 03/15/28

    6,240       6,985,979  

3.25%, 05/15/30(b)

    869       928,028  

4.60%, 03/15/48

    3,414       3,882,158  

3.95%, 05/15/50(b)

    3,100       3,303,069  

Western Midstream Operating LP, (3 mo. LIBOR US + 0.85%), 2.16%, 01/13/23(a)

    4,291       3,938,071  

Williams Cos., Inc.
3.90%, 01/15/25

    1,098       1,202,129  

7.50%, 01/15/31

    2,180       2,791,637  

WPX Energy, Inc.
8.25%, 08/01/23

    375       416,250  
Security   Par
(000)
    Value  
Oil, Gas & Consumable Fuels (continued)  

WPX Energy, Inc.
5.88%, 06/15/28

  USD   558     $ 536,210  

Yankuang Group Cayman Ltd., 4.75%, 11/30/20

    770       770,077  
   

 

 

 
          518,343,101  
Paper & Forest Products — 0.2%            

Celulosa Arauco y Constitucion SA, 4.25%, 04/30/29(b)

    1,305       1,344,150  

Georgia-Pacific LLC
5.40%, 11/01/20(b)

    3,718       3,777,225  

3.73%, 07/15/23(b)

    3,907       4,221,672  

3.60%, 03/01/25(b)

    1,475       1,638,942  

1.75%, 09/30/25(b)

    5,626       5,803,957  

7.38%, 12/01/25

    3,288       4,202,000  

2.10%, 04/30/27(b)

    2,870       2,980,454  

7.75%, 11/15/29

    1,275       1,903,090  

2.30%, 04/30/30(b)

    1,302       1,356,315  

8.88%, 05/15/31

    528       845,734  

Inversiones CMPC SA, 4.38%, 05/15/23(b)

    827       865,507  
   

 

 

 
      28,939,046  
Pharmaceuticals — 0.8%            

Allergan Funding SCS, 3.45%, 03/15/22

    14,735       15,068,055  

Bausch Health Americas, Inc.
9.25%, 04/01/26(b)

    3,933       4,266,912  

8.50%, 01/31/27(b)

    4,589       4,870,076  

Bausch Health Cos., Inc.
5.50%, 11/01/25(b)

    4,757       4,875,925  

9.00%, 12/15/25(b)

    3,992       4,300,222  

5.75%, 08/15/27(b)

    1,865       1,976,900  

7.00%, 01/15/28(b)

    1,897       1,953,910  

7.25%, 05/30/29(b)

    1,961       2,059,050  

Bayer U.S. Finance II LLC
2.85%, 04/15/25(b)

    2,800       2,962,327  

4.38%, 12/15/28(b)

    6,176       7,217,654  

3.60%, 07/15/42(b)

    2,845       2,844,452  

Bristol-Myers Squibb Co.
3.90%, 02/20/28(b)

    2,152       2,531,477  

4.55%, 02/20/48(b)

    3,279       4,450,991  

Eli Lilly & Co., 1.70%, 11/01/49

  EUR   3,400       3,964,976  

Horizon Therapeutics USA, Inc., 5.50%, 08/01/27(b)

  USD   358       372,452  

Luye Pharma Group Ltd.,
1.50%, 07/09/24(i)

    900       865,807  

Merck & Co., Inc.
3.40%, 03/07/29

    4,185       4,828,815  

1.45%, 06/24/30

    2,501       2,498,138  

2.45%, 06/24/50

    3,463       3,480,660  

Pfizer, Inc.
5.80%, 08/12/23

    517       600,078  

3.45%, 03/15/29

    8,145       9,517,362  

2.63%, 04/01/30

    2,536       2,793,708  

Pharmacia LLC, 6.60%, 12/01/28

    2,164       2,975,104  

Shire Acquisitions Investments Ireland DAC

 

2.88%, 09/23/23

    4,400       4,663,219  

3.20%, 09/23/26

    10,055       11,156,869  

Sino Biopharmaceutical Ltd.,
0.00%, 02/17/25(i)(k)

  EUR   924       1,070,814  

Takeda Pharmaceutical Co. Ltd.
5.00%, 11/26/28

  USD   12,852       15,921,634  

2.00%, 07/09/40

  EUR     10,410       11,628,796  

Wyeth LLC, 5.95%, 04/01/37

  USD   6,252       9,127,682  
   

 

 

 
      144,844,065  
 

 

 

28  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Real Estate Management & Development — 0.4%  

Agile Group Holdings Ltd.

   

(5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 11.29%), 7.88%, (h)(j)

  USD 200     $ 196,438  

6.70%, 03/07/22

    236       241,945  

Arrow Bidco LLC, 9.50%, 03/15/24(b)

    2,177           1,698,060  

Central China Real Estate Ltd.

   

6.88%, 10/23/20

    500       500,000  

6.50%, 03/05/21

    260       259,477  

6.75%, 11/08/21

    435       432,133  

7.25%, 04/24/23

    200       197,412  

7.65%, 08/27/23

    200       197,764  

CFLD Cayman Investment Ltd.

   

8.63%, 02/28/21

    581       588,989  

6.90%, 01/13/23

    200       196,581  

8.60%, 04/08/24

    719       708,889  

China Aoyuan Group Ltd.

   

4.80%, 02/18/21

    800       795,000  

7.95%, 02/19/23

    2,165       2,246,642  

6.35%, 02/08/24

    2,100       2,081,406  

China Evergrande Group

   

9.50%, 04/11/22

    200       187,810  

11.50%, 01/22/23

    400       378,148  

4.25%, 02/14/23(i)

  HKD      28,000       3,403,813  

10.00%, 04/11/23

  USD 400       361,624  

7.50%, 06/28/23

    800       669,750  

12.00%, 01/22/24

    900       825,921  

10.50%, 04/11/24

    200       172,625  

China SCE Group Holdings Ltd.

   

7.25%, 04/19/23

    1,000       992,500  

7.38%, 04/09/24

    636       624,671  

CIFI Holdings Group Co. Ltd.

   

7.63%, 02/28/23

    200       210,110  

6.45%, 11/07/24

    200       203,000  

6.00%, 07/16/25

    200       197,000  

Country Garden Holdings Co. Ltd.

   

6.50%, 04/08/24

    200       212,125  

5.40%, 05/27/25

    965       1,001,187  

6.15%, 09/17/25

    200       211,593  

Esic Sukuk Ltd., 3.94%, 07/30/24

    1,500       1,463,906  

Fantasia Holdings Group Co. Ltd.

   

8.38%, 03/08/21

    510       510,159  

11.75%, 04/17/22

    230       237,758  

7.95%, 07/05/22

    530       510,788  

12.25%, 10/18/22

    200       208,656  

10.88%, 01/09/23

    200       201,500  

Five Point Operating Co. LP/Five Point Capital Corp., 7.88%, 11/15/25(b)

    4,330       4,091,850  

Forestar Group, Inc.

   

8.00%, 04/15/24(b)

    9,456       9,786,960  

5.00%, 03/01/28(b)

    3,502       3,431,960  

Future Land Development Holdings Ltd.

   

6.50%, 09/12/20

    300       300,281  

7.50%, 01/22/21

    700       705,250  

Gemdale Ever Prosperity Investment Ltd.,

   

5.60%, 06/14/22

    200       202,243  

Global Prime Capital Pte Ltd., 5.95%, 01/23/25

    200       189,000  

Greenland Global Investment Ltd.

   

5.60%, 11/13/22

    200       196,740  

6.75%, 09/26/23

    200       199,084  

Hopson Capital International Group Co. Ltd.,

 

 

6.00%, 02/17/21

    800       789,000  
Security   Par
(000)
    Value  
Real Estate Management & Development (continued)  

Hopson Development Holdings Ltd., 7.50%, 06/27/22

  USD  200     $ 200,302  

Howard Hughes Corp., 5.38%, 03/15/25(b)

        3,322           3,091,453  

Jingrui Holdings Ltd., 9.45%, 04/23/21

    700       676,375  

Kaisa Group Holdings Ltd.

   

6.75%, 02/18/21

    555       552,919  

8.50%, 06/30/22

    254       251,219  

11.95%, 10/22/22

    900       937,969  

11.50%, 01/30/23

    200       204,442  

10.88%, 07/23/23

    200       199,688  

11.95%, 11/12/23

    215       220,758  

KWG Group Holdings Ltd., 7.40%, 03/05/24

    200       203,776  

Logan Group Co. Ltd., 5.75%, 01/14/25

    236       234,730  

Logan Property Holdings Co. Ltd., 6.50%, 07/16/23

    200       204,750  

Longfor Group Holdings Ltd., 3.95%, 09/16/29

    620       641,894  

MAF Global Securities Ltd., 4.75%, 05/07/24

    1,073       1,127,991  

New Metro Global Ltd., 6.80%, 08/05/23

    200       201,014  

No Va Land Investment Group Corp., 5.50%, 04/27/23(i)

    1,285       1,277,151  

NWD MTN Ltd., 4.13%, 07/18/29

    1,200       1,178,250  

Powerlong Real Estate Holdings Ltd.

   

7.13%, 11/08/22

    620       626,330  

6.95%, 07/23/23

    200       200,038  

Realogy Group LLC/Realogy Co-Issuer Corp.,

   

9.38%, 04/01/27(b)

    410       382,366  

Redsun Properties Group Ltd.

   

11.50%, 03/04/21

    800       814,750  

10.50%, 10/03/22

    200       201,010  

RKPF Overseas 2019 A Ltd., 7.88%, 02/01/23

    300       313,578  

Ronshine China Holdings Ltd.

   

11.25%, 08/22/21

    265       277,939  

8.75%, 10/25/22

    730       758,226  

8.95%, 01/22/23

    705       736,284  

7.35%, 12/15/23

    200       200,981  

Scenery Journey Ltd.

   

11.50%, 10/24/22

    665       630,520  

12.00%, 10/24/23

    400       375,208  

Seazen Group Ltd., 6.45%, 06/11/22

    200       201,243  

Shimao Group Holdings Ltd., 5.60%, 07/15/26

    200       210,688  

Shui On Development Holding Ltd., 5.75%, 11/12/23

    300       293,937  

Singha Estate PCL, 2.00%, 07/20/22(i)

    1,000       984,677  

Sunac China Holdings Ltd.

   

8.35%, 04/19/23

    200       206,000  

7.95%, 10/11/23

    200       204,375  

7.50%, 02/01/24

    200       199,875  

Times China Holdings Ltd.

   

5.75%, 04/26/22

    500       500,030  

6.75%, 07/16/23

    295       299,333  

Vanke Real Estate Hong Kong Co. Ltd., 3.15%, 05/12/25

    1,650       1,691,250  

Wanda Group Overseas Ltd., 7.50%, 07/24/22

    840       782,233  

Yango Justice International Ltd.

   

6.80%, 03/11/21

    795       787,050  

9.25%, 04/15/23

    200       199,028  

Yanlord Land HK Co. Ltd.

   

6.75%, 04/23/23

    200       201,625  

6.80%, 02/27/24

    680       670,013  

Yuzhou Properties Co. Ltd.

   

8.50%, 02/04/23

    200       208,000  

6.00%, 10/25/23

    620       598,688  
 

 

 

  29


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Real Estate Management & Development (continued)  

Yuzhou Properties Co. Ltd.

   

8.50%, 02/26/24

  USD  900     $ 919,125  

8.38%, 10/30/24

    200       201,813  

Zhenro Properties Group Ltd.

   

5.60%, 02/28/21

    325       322,156  

9.15%, 05/06/23

    910       921,293  

8.30%, 09/15/23

    200       195,984  
   

 

 

 
      70,738,075  
Road & Rail — 0.6%            

Burlington Northern Santa Fe LLC

   

6.15%, 05/01/37

    889       1,298,645  

5.75%, 05/01/40

    4,135       5,833,284  

5.05%, 03/01/41

    399       527,339  

4.40%, 03/15/42

    98       122,350  

Canadian Pacific Railway Co., 2.05%, 03/05/30

    913       934,430  

CSX Corp.

   

4.25%, 03/15/29

    4,914       5,839,665  

6.15%, 05/01/37

    75       103,896  

5.50%, 04/15/41

    285       391,901  

4.10%, 03/15/44

    1,488       1,819,789  

4.30%, 03/01/48

    7,631       9,522,143  

4.75%, 11/15/48

    3,141       4,170,135  

4.50%, 03/15/49

    1,303       1,671,824  

4.25%, 11/01/66

    1,775       2,151,159  

Norfolk Southern Corp.

   

3.65%, 08/01/25

    3,515       3,967,906  

2.90%, 06/15/26

        6,045       6,678,886  

2.55%, 11/01/29

    365       388,026  

4.84%, 10/01/41

    455       590,438  

4.45%, 06/15/45

    35       43,611  

3.40%, 11/01/49

    1,244       1,355,003  

4.05%, 08/15/52

    6,058       7,244,045  

Penske Truck Leasing Co. LP/PTL Finance Corp.

   

4.25%, 01/17/23(b)

    2,565       2,728,429  

2.70%, 03/14/23(b)

    3,425       3,505,330  

2.70%, 11/01/24(b)

    1,580       1,625,538  

3.95%, 03/10/25(b)

    2,210       2,395,507  

4.00%, 07/15/25(b)

    6,010       6,573,482  

4.45%, 01/29/26(b)

    950       1,047,231  

3.40%, 11/15/26(b)

    839       885,024  

3.35%, 11/01/29(b)

    930       947,975  

Ryder System, Inc.

   

2.50%, 09/01/22

    345       355,208  

3.65%, 03/18/24

    1,485       1,586,439  

2.50%, 09/01/24

    3,710       3,826,600  

4.63%, 06/01/25

    7,420       8,272,288  

Union Pacific Corp.

   

2.75%, 03/01/26

    4,737       5,154,441  

2.15%, 02/05/27

    1,214       1,285,860  

3.38%, 02/01/35

    2,074       2,334,118  

3.60%, 09/15/37

    4,179       4,646,735  

4.50%, 09/10/48

    7       9,018  

3.95%, 08/15/59

    2,134       2,500,526  

3.84%, 03/20/60

    6,449       7,452,664  

3.75%, 02/05/70

    700       779,736  

Union Pacific Railroad Co. Pass-Through Trust,

 

 

Series 2014-1, 3.23%, 05/14/26

    2,583       2,842,792  
   

 

 

 
          115,409,416  
Semiconductors & Semiconductor Equipment — 1.3%  

Analog Devices, Inc.

   

2.95%, 04/01/25

    5,734       6,211,786  
Security   Par
(000)
    Value  
Semiconductors & Semiconductor Equipment (continued)  

Analog Devices, Inc.

   

3.50%, 12/05/26

  USD  1,332     $ 1,488,196  

Applied Materials, Inc.

   

5.10%, 10/01/35

    140       195,110  

4.35%, 04/01/47

    1,720       2,209,838  

2.75%, 06/01/50

    6,670       6,812,062  

Broadcom Corp./Broadcom Cayman Finance Ltd., 3.88%, 01/15/27

    24,486       26,459,968  

Broadcom, Inc.

   

2.25%, 11/15/23(b)

    10,401       10,746,439  

3.63%, 10/15/24(b)

    3,113       3,381,242  

4.70%, 04/15/25(b)

    21,345       24,050,999  

4.25%, 04/15/26(b)

    21,377       23,790,573  

4.11%, 09/15/28(b)

    5,190       5,654,627  

Intel Corp.

   

4.10%, 05/19/46

    1,713       2,137,882  

3.73%, 12/08/47

    1,473       1,747,721  

4.75%, 03/25/50

    7,444       10,494,253  

KLA Corp.

   

4.10%, 03/15/29

    7,170       8,461,585  

5.00%, 03/15/49

    980       1,278,659  

3.30%, 03/01/50

    11,466       11,843,052  

Lam Research Corp.

   

3.75%, 03/15/26

    7,638       8,731,309  

1.90%, 06/15/30

    2,535       2,591,150  

4.88%, 03/15/49

    2,870       3,979,707  

2.88%, 06/15/50

    3,261       3,359,463  

3.13%, 06/15/60

    1,024       1,073,895  

NVIDIA Corp.

   

3.20%, 09/16/26

    11,156       12,636,619  

2.85%, 04/01/30

    12,173       13,542,324  

3.50%, 04/01/50

    7,834       8,950,776  

NXP BV/NXP Funding LLC

   

4.13%, 06/01/21(b)

    11,201       11,535,179  

4.63%, 06/15/22(b)

    2,582       2,750,634  

4.63%, 06/01/23(b)

    8,885       9,744,831  

5.55%, 12/01/28(b)

    2,008       2,439,643  

NXP BV/NXP Funding LLC/NXP USA, Inc.

   

2.70%, 05/01/25(b)

    911       954,986  

3.15%, 05/01/27(b)

    1,355       1,436,410  

4.30%, 06/18/29(b)

    6,513       7,389,989  

QUALCOMM, Inc.

   

4.80%, 05/20/45

    4,845       6,335,271  

4.30%, 05/20/47

    3,969       4,950,618  

Rohm Co. Ltd., 0.00%, 12/05/24(i)(k)

  JPY     30,000       278,537  

Texas Instruments, Inc., 1.75%, 05/04/30

  USD 1,423       1,444,069  
   

 

 

 
          251,089,402  
Software — 0.6%        

Autodesk, Inc.

   

4.38%, 06/15/25

    405       462,048  

3.50%, 06/15/27

    13,495       15,223,961  

Microsoft Corp.

   

4.20%, 11/03/35

    169       219,959  

3.45%, 08/08/36

    1,229       1,485,200  

3.75%, 02/12/45

    5,451       6,822,717  

3.70%, 08/08/46

    8,202       10,213,828  

2.53%, 06/01/50

    4,919       5,130,553  

Oracle Corp.

   

2.50%, 04/01/25

    15,106       16,178,860  

2.65%, 07/15/26

    2,217       2,398,086  

3.90%, 05/15/35

    9,232       11,135,680  

3.85%, 07/15/36

    1,295       1,511,190  
 

 

 

30  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Software (continued)  

Oracle Corp.

   

3.80%, 11/15/37

  USD  6,303     $ 7,272,920  

3.60%, 04/01/40

    5,518       6,263,428  

5.38%, 07/15/40

    2,370       3,251,106  

4.13%, 05/15/45

    1,664       1,986,329  

3.60%, 04/01/50

        23,515       26,169,364  
   

 

 

 
          115,725,229  
Specialty Retail — 0.2%  

Home Depot, Inc., 2.95%, 06/15/29

    17,446       19,619,633  

Lowe’s Cos., Inc.

   

4.00%, 04/15/25

    13,350       15,213,420  

4.38%, 09/15/45

    1,553       1,870,334  

4.05%, 05/03/47

    2,419       2,851,283  

4.55%, 04/05/49

    1,762       2,217,470  
   

 

 

 
      41,772,140  
Technology Hardware, Storage & Peripherals — 0.5%  

Apple Inc.

   

3.85%, 05/04/43

    8,951       11,080,388  

3.45%, 02/09/45

    5,020       5,858,745  

4.25%, 02/09/47

    1,230       1,622,958  

2.95%, 09/11/49

    2,797       3,051,051  

Dell International LLC/EMC Corp.

   

6.02%, 06/15/26(b)

    335       384,069  

4.90%, 10/01/26(b)

    2,737       3,020,011  

8.10%, 07/15/36(b)

    7,500       9,890,530  

Hewlett Packard Enterprise Co.

   

3.60%, 10/15/20

    58       58,364  

4.40%, 10/15/22

    22,801       24,409,169  

4.45%, 10/02/23

    6,096       6,651,094  

4.65%, 10/01/24

    14,885       16,714,432  

HP, Inc., 6.00%, 09/15/41

    285       334,150  

Innolux Corp., Series 1,
0.00%, 01/22/25(i)(k)

    800       681,000  

Seagate HDD Cayman,
4.75%, 01/01/25(b)

    3,218       3,169,721  
   

 

 

 
      86,925,682  
Textiles, Apparel & Luxury Goods — 0.1%  

Hanesbrands, Inc.

   

4.63%, 05/15/24(b)

    3,828       3,808,860  

4.88%, 05/15/26(b)

    537       541,027  

NIKE, Inc., 2.75%, 03/27/27

    10,798       11,894,675  

Under Armour, Inc., 3.25%, 06/15/26

    358       316,007  

William Carter Co., 5.63%, 03/15/27(b)

    1,700       1,751,000  
   

 

 

 
      18,311,569  
Thrifts & Mortgage Finance — 0.1%  

Mongolian Mortgage Corp. Hfc LLC, 9.75%, 01/29/22

    800       697,000  

Nationstar Mortgage Holdings, Inc.

   

8.13%, 07/15/23(b)

    2,745       2,816,919  

9.13%, 07/15/26(b)

    5,946       6,284,149  
   

 

 

 
      9,798,068  
Tobacco — 0.6%  

Altria Group, Inc.

   

4.00%, 01/31/24

    5,847       6,438,014  

4.40%, 02/14/26

    8,822       10,158,117  

4.80%, 02/14/29

    7,369       8,603,598  

3.13%, 06/15/31

  EUR     8,450       10,328,390  

5.80%, 02/14/39

  USD    12,869       15,914,668  

BAT Capital Corp.

   

4.70%, 04/02/27

    5,227       5,974,138  

4.91%, 04/02/30

    3,175       3,713,226  

4.54%, 08/15/47

    4,377       4,752,467  
Security   Par
(000)
    Value  
Tobacco (continued)  

BAT Capital Corp.
4.76%, 09/06/49

  USD   811     $ 900,536  

5.28%, 04/02/50

    1,965       2,378,504  

Philip Morris International, Inc.
2.88%, 05/01/24

    53       56,930  

3.25%, 11/10/24

    1,847       2,044,678  

1.45%, 08/01/39

  EUR     11,250       11,753,196  

Reynolds American, Inc.
4.85%, 09/15/23

  USD   335       373,156  

4.45%, 06/12/25

    7,809       8,798,731  

5.85%, 08/15/45

    10,533       12,946,700  
   

 

 

 
          105,135,049  
Trading Companies & Distributors — 0.2%  

American Builders & Contractors Supply Co., Inc.
5.88%, 05/15/26(b)

    1,723       1,705,770  

4.00%, 01/15/28(b)

    2,286       2,221,466  

Beacon Roofing Supply, Inc.,
4.88%, 11/01/25(b)

    3,424       3,055,920  

H&E Equipment Services, Inc.,
5.63%, 09/01/25

    5,888       5,945,644  

HD Supply, Inc., 5.38%, 10/15/26(b)

    2,094       2,138,498  

Herc Holdings, Inc., 5.50%, 07/15/27(b)

    3,403       3,410,316  

United Rentals North America, Inc.
4.63%, 10/15/25

    2,451       2,463,255  

5.88%, 09/15/26

    3,421       3,585,208  

6.50%, 12/15/26

    3,779       3,967,950  

5.50%, 05/15/27

    3,428       3,530,840  

3.88%, 11/15/27

    4,513       4,501,717  

4.88%, 01/15/28

    7,036       7,211,900  

5.25%, 01/15/30

    448       462,560  
   

 

 

 
      44,201,044  
Transportation Infrastructure — 0.0%  

Adani Ports & Special Economic Zone Ltd.
4.00%, 07/30/27

    203       196,910  

4.38%, 07/03/29

    1,275       1,251,094  

Rumo Luxembourg S.a.r.l,
5.88%, 01/18/25(b)

    728       768,040  
   

 

 

 
      2,216,044  
Wireless Telecommunication Services — 0.6%  

America Movil SAB de CV, 2.88%, 05/07/30

    5,727       6,045,135  

Bharti Airtel Ltd., 1.50%, 02/17/25(i)

    1,900       2,178,446  

Digicel Group 0.5 Ltd.

   

(7.00% Cash or 7.00% PIK),
7.00%, (b)(c)(i)(j)(l)

    164       11,485  

(5.00% Cash or 8.00% PIK), 8.00%, 04/01/25(b)(l)

    990       217,948  

Digicel Ltd., 6.75%, 03/01/23(b)(f)(g)

    233       116,512  

Kenbourne Invest SA, 6.88%, 11/26/24(b)

    3,075       3,097,044  

Millicom International Cellular SA, 6.63%, 10/15/26(b)

    1,100       1,167,904  

Sprint Corp.
7.88%, 09/15/23

    312       351,390  

7.13%, 06/15/24

    156       176,146  

7.63%, 02/15/25

    4,480       5,168,800  

7.63%, 03/01/26

    4,516       5,330,551  

Sprint Spectrum Co. LLC/Sprint Spectrum Co. II LLC/Sprint Spectrum Co. III LLC, 3.36%, 09/20/21(b)

    5,161       5,223,798  

T-Mobile USA, Inc.
3.50%, 04/15/25(b)

    11,721       12,757,019  

1.50%, 02/15/26(b)

    20,460       20,458,568  

3.75%, 04/15/27(b)

    22,882       25,357,146  

3.88%, 04/15/30(b)

    3,623       4,032,254  

2.55%, 02/15/31(b)

    8,435       8,464,691  
 

 

 

  31


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Wireless Telecommunication Services (continued)  

Vodafone Group PLC

   

4.13%, 05/30/25

  USD  1,336     $ 1,514,694  

5.00%, 05/30/38

    288       361,963  

4.38%, 02/19/43

    4,046       4,708,823  

5.25%, 05/30/48

    10,959       14,311,804  
   

 

 

 
      121,052,121  
   

 

 

 

Total Corporate Bonds — 39.2%
(Cost: $7,084,183,634)

          7,358,976,479  
   

 

 

 

Floating Rate Loan Interests(a)

 

Air Freight & Logistics — 0.0%  

XPO Logistics, Inc., Refinancing Term Loan (2018), (1 mo. LIBOR US + 2.00%, 0.00% Floor), 4.40%, 02/24/25

    6,661       6,479,043  
   

 

 

 
Airlines — 0.2%  

Allegiant Travel Co., Replacement Term Loan, (3 mo. LIBOR US + 3.00%, 0.00% Floor),

   

3.00%, 02/05/24

    14,140       12,558,178  

Gol Luxco SA, Term Loan, (6 mo. FIXED US + 6.50%, 0.00% Floor), 0.00%, 08/31/20(c)(n)

    7,462       7,163,520  

Kestrel Bidco, Inc. (AKA WestJet Airlines), Term Loan, (3 mo. LIBOR US + 3.00%, 1.00% Floor), 4.00%, 12/11/26

    14,693       11,742,337  
   

 

 

 
      31,464,035  
Biotechnology — 0.0%  

Grifols Worldwide Operations Ltd., Dollar Tranche B Term Loan, (1 wk. LIBOR US + 2.00%, 0.00% Floor), 3.59%, 11/15/27

    7,221       6,940,676  
   

 

 

 
Building Products — 0.0%  

JELD-WEN, Inc., Term B-4 Loan, (1 mo. LIBOR US + 2.00%, 0.00% Floor), 4.33%, 12/14/24

    2,897       2,718,928  

TAMKO Building Products LLC, Initial Term Loan, (1 mo. LIBOR US + 3.25%, 0.00% Floor), 5.55%, 05/31/26(c)

    3,775       3,623,498  
   

 

 

 
      6,342,426  
Capital Markets — 0.1%  

LSTAR Securities Financing Vehicle LLC, Loan, (1 mo. LIBOR US + 2.00%, 0.00% Floor),
3.66%, 05/02/22(c)

        21,774       21,120,493  
   

 

 

 
Commercial Services & Supplies — 0.1%  

621 17th Street Operating Co. LLC (633 17th Street Operating Co. LLC), Loan, (1 mo. LIBOR US + 2.90%, 0.00% Floor), 2.90%, 05/15/21(c)

    8,600       7,740,000  

KAR Auction Services, Inc., Tranche B-6 Term Loan, (1 mo. LIBOR US + 2.25%, 0.00% Floor), 2.50%, 09/19/26

    1,072       1,014,411  
   

 

 

 
      8,754,411  
Construction & Engineering — 0.0%  

PLH Infrastructure Services, Inc., Term Loan, (3 mo. LIBOR US + 6.00%, 0.00% Floor),
7.00%, 08/07/23(c)

    2,582       2,143,044  

Ply Gem Midco, Inc., Initial Term Loan, (1 mo. LIBOR US + 3.75%, 0.00% Floor), 5.43%, 04/12/25

    2,341       2,221,196  
   

 

 

 
      4,364,240  
Security   Par
(000)
    Value  
Construction Materials — 0.0%  

Advanced Drainage Systems, Inc., Initial Term Loan, (1 mo. LIBOR US + 2.25%, 0.00% Floor), 2.44%, 09/24/26

  USD  1,101     $ 1,069,246  
   

 

 

 
Consumer Finance — 0.0%  

Crédito Real SAB de CV, SOFOM, ENR (Marevalley Corp.), Tranche A Loan, (3 mo. LIBOR US + 3.75%, 0.00% Floor), 3.75%, 02/21/23(c)

    815       725,350  
   

 

 

 
Diversified Financial Services — 0.2%  

18 Fremont Street Acquisition LLC, Term Loan, (3 mo. LIBOR US + 8.00%, 1.50% Floor), 10.03%, 08/09/25

    12,000       10,485,238  

BSREP II Houston Office 1HC Owner LLC, Mezzanine Loan, (1 mo. LIBOR US + 2.10%, 0.00% Floor), 4.25%, 01/09/21

    10,333       10,332,936  

Connect Finco S.a.r.l (AKA Inmarsat), Initial Term Loan, (1 mo. LIBOR US + 4.50%, 1.00% Floor), 6.14%, 12/12/26

    2,529       2,372,214  

Intelsat Jackson Holdings SA

   

DIP Term Loan, (3 mo. LIBOR US + 5.50%, 1.00% Floor), 6.50%, 07/13/21

    1,934       1,959,631  

Tranche B-3 Term Loan, (1 mo. PRIME US + 4.75%, 1.00% Floor), 5.68%, 11/27/23

    1,275       1,266,241  

Tranche B-4 Term Loan, (1 mo. PRIME US + 5.50%, 1.00% Floor), 8.75%, 01/02/24

    1,459       1,454,683  

Pretium Mortgage Credit Partners I LP, Term Loan B1, (1 mo. LIBOR US + 2.25%, 0.00% Floor), 2.00%, 10/21/20(c)

    5,119       5,068,034  

RNTR-1 LLC (AKA Seer Sylvan), Initial Term Loan, (1 mo. LIBOR US + 2.38%, 0.25% Floor), 4.49%, 12/20/21(c)

    7,763       7,588,198  

Stars Group Holdings BV, USD Term Loan, (3 mo. LIBOR US + 3.50%, 0.00% Floor), 4.95%, 07/10/25

    3,267       3,244,208  
   

 

 

 
          43,771,383  
Electronic Equipment, Instruments & Components — 0.0%  

Robertshaw U.S. Holding Corp. (FKA Fox U.S. Bidco Corp.), Initial Term Loan (Second Lien), (6 mo. LIBOR US + 8.00%, 1.00% Floor), 10.12%, 02/28/26(c)

    1,795       969,300  
   

 

 

 
Equity Real Estate Investment Trusts (REITs) — 0.1%  

VICI Properties 1 LLC, Term B Loan, (1 mo. LIBOR US + 1.75%, 0.00% Floor), 3.65%, 12/22/24

    8,362       7,775,149  
   

 

 

 
Food Products — 0.0%  

JBS USA Lux SA (FKA JBS USA LLC), New Term Loan, (3 mo. LIBOR US + 2.00%, 0.00% Floor), 4.54%, 05/01/26

    3,350       3,192,596  
   

 

 

 
Health Care Providers & Services — 0.1%  

Acadia Healthcare Co., Inc., Tranche B-4 Term Loan, (1 mo. LIBOR US + 2.50%, 0.00% Floor), 4.15%, 02/16/23

        15,108       14,762,770  

Select Medical Corp., Tranche B Term Loan, (1 mo. LIBOR US + 2.50%, 0.00% Floor), 2.67%, 03/06/25

    1,124       1,065,380  
   

 

 

 
      15,828,150  
 

 

 

32  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Hotels, Restaurants & Leisure — 0.2%  

Aimbridge Acquisition Co., Inc., Initial Term Loan (2019) (First Lien), (1 mo. LIBOR US + 3.75%, 0.00% Floor), 5.41%, 02/01/26

  USD  3,923     $ 3,393,826  

Caesars Resort Collection LLC, 4.50%, 06/19/25(o)

    2,203       2,066,700  

DuPont Hotel Project Owner LLC, Loan, (1 mo. LIBOR US + 2.50%, 1.00% Floor), 4.91%, 04/01/24(c)

        12,000           10,800,000  

Golden Nugget, Inc. (AKA Landry’s, Inc.), Initial B Term Loan, (2 mo. LIBOR US + 2.50%, 0.75% Floor), 4.14%, 10/04/23

    6,531       5,159,179  

PCI Gaming Authority, Term B Facility Loan, (1 mo. LIBOR US + 2.50%, 0.00% Floor), 5.05%, 05/31/26

    6,597       6,266,846  

Spectacle Gary Holdings LLC, Closing Date Term Loan, (3 mo. LIBOR US + 9.00%, 2.00% Floor),
11.00%, 12/23/25(c)

    13,888       12,777,495  
   

 

 

 
      40,464,046  
Machinery — 0.0%  

Douglas Dynamics LLC, 2020 Term B Loan, (1 mo. LIBOR US + 3.75%, 1.00% Floor), 4.75%, 06/08/26(c)

    1,288       1,258,508  

Gates Global LLC, Initial B-2 Dollar Term Loan, (1 mo. LIBOR US + 2.75%, 1.00% Floor), 3.75%, 03/31/24

    981       942,780  
   

 

 

 
      2,201,288  
Media — 0.1%  

Airbnb, Inc., Initial Term Loan (First Lien), (3 mo. LIBOR US + 7.50%, 1.00% Floor), 8.00%, 04/17/25(c)

    3,824       3,957,840  

Burlingame Point LLC, Construction Loan,

   

(3 mo. LIBOR US + 3.10%, 1.75% Floor),

   

5.58%, 05/09/23(c)

    9,134       8,951,707  

Charter Communications Operating LLC (AKA CCO Safari LLC), Term A-4 Loan, (1 mo. LIBOR US + 1.25%, 0.00% Floor), 1.25%, 02/01/25(c)

    4,292       4,163,505  

CSC Holdings LLC (FKA CSC Holdings, Inc. (Cablevision)), September 2019 Initial Term Loan, (1 mo. LIBOR US + 2.50%, 0.00% Floor), 1.00%, 04/15/27

    4,538       4,295,281  

Lamar Media Corp., Term B Loan, (1 mo. LIBOR US + 1.50%, 0.00% Floor), 1.67%, 02/06/27

    477       465,242  
   

 

 

 
      21,833,575  
Metals & Mining — 0.0%  

Samarco Mineracao SA,
3.90%, 12/02/19(f)(g)

    1,122       426,433  

Zekelman Industries, Inc. (FKA JMC Steel Group, Inc.), 2020 Term Loan, (1 mo. LIBOR US + 2.25%, 0.00% Floor), 2.42%, 01/24/27

    1,372       1,311,557  
   

 

 

 
      1,737,990  
Multi-Utilities — 0.1%  

PG&E Corp., Loan, (3 mo. LIBOR US + 4.50%, 1.00% Floor), 2.25%, 11/26/21

    7,799       7,652,769  
   

 

 

 
Oil, Gas & Consumable Fuels — 0.2%  

BCP Raptor II LLC, Initial Term Loan, (1 mo. LIBOR US + 4.75%, 0.00% Floor), 4.92%, 11/03/25

    9,452       6,096,237  

Buckeye Partners LP, Initial Term Loan, (1 mo. LIBOR US + 2.75%, 0.00% Floor), 2.92%, 11/01/26

    11,607       11,102,010  
Security   Par
(000)
    Value  
Oil, Gas & Consumable Fuels (continued)  

California Resources Corp.

   

Initial Loan, (3 mo. LIBOR US + 4.75%, 1.00% Floor), 6.55%, 12/31/22

    USD 8,708     $ 2,971,605  

Loan, (3 mo. LIBOR US + 10.38%, 1.00% Floor), 12.42%, 12/31/21

    7,760       349,200  

Chesapeake Energy Corp., Class A Term Loan, (1 mo. LIBOR US + 8.00%, 1.00% Floor), 9.00%, 06/23/24

        15,648       8,975,223  
   

 

 

 
          29,494,275  
Real Estate Management & Development — 0.1%  

BRE Park Avenue Tower Owner LLC, Mezzanine A Loan, (1 mo. LIBOR US + 2.05%, 0.00% Floor), 2.05%, 03/09/24(c)

    16,472       16,333,572  
   

 

 

 
Road & Rail — 0.0%  

Genesee & Wyoming, Inc., Initial Term Loan, (3 mo. LIBOR US + 2.00%, 0.00% Floor), 3.97%, 12/30/26

    4,247       4,079,754  
   

 

 

 
Software — 0.1%  

Interface Security Systems LLC, Initial Term Loan, (3 mo. LIBOR US + 7.00%, 1.75% Floor), 9.19%, 08/07/23(c)

    5,579       5,363,001  

Playtika Holding Corp., Term B Loan, (3 mo. LIBOR US + 6.00%, 1.00% Floor), 7.07%, 12/10/24

    11,116       11,088,514  
   

 

 

 
      16,451,515  
Technology Hardware, Storage & Peripherals — 0.1%  

Aligned Energy Data Centers (SLC) Propco LLC, Term Loan, (1 mo. LIBOR US + 3.50%, 0.00% Floor), 3.50%, 10/09/23(c)

    11,988       11,687,991  

Everi Payments, Inc.

   

Term B Loan, (3 mo. LIBOR US + 2.75%, 1.00% Floor), 4.70%, 05/09/24

    806       737,239  

Term Loan, (3 mo. LIBOR US + 10.50%, 1.00% Floor), 11.50%, 05/09/24(c)

    738       738,000  
   

 

 

 
      13,163,230  
Thrifts & Mortgage Finance — 0.1%  

Caliber Home Loans, Inc.

   

Term Loan, (1 mo. LIBOR US + 3.00%, 0.00% Floor), 0.00%, 04/24/21(c)

    5,968       5,938,160  

Term Loan, (1 mo. LIBOR US + 3.25%, 0.00% Floor), 0.00%, 04/24/21(c)

    6,578       6,545,472  

Roundpoint Mortgage Servicing Corp., Closing Date Term Loan, (1 mo. LIBOR US + 3.38%, 0.00% Floor), 3.38%, 08/27/20(c)

    9,496       9,496,025  
   

 

 

 
      21,979,657  
Trading Companies & Distributors — 0.0%  

Foundation Building Materials Holding Company LLC, Term Loan, (1 mo. LIBOR US + 3.00%, 0.00% Floor), 5.11%, 08/13/25

    3,950       3,796,793  
   

 

 

 

Total Floating Rate Loan Interests — 1.8%
(Cost: $378,350,225)

 

    337,984,962  
   

 

 

 

Foreign Agency Obligations

 

Brazil — 0.1%            

Banco do Brasil SA

   

5.38%, 01/15/21(b)

    1,204       1,223,565  

5.88%, 01/26/22(b)

    1,244       1,281,009  

Centrais Eletricas Brasileiras SA

   

5.75%, 10/27/21(b)

    365       376,520  
 

 

 

  33


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Brazil (continued)  

Centrais Eletricas Brasileiras SA 3.63%, 02/04/25(b)

  USD     3,660     $ 3,577,650  

Petrobras Global Finance BV
5.75%, 02/01/29

    2,902       2,973,643  

5.09%, 01/15/30

    2,902       2,890,392  

6.75%, 06/03/50

    4,263       4,384,496  
   

 

 

 
      16,707,275  
Chile — 0.0%  

Corp Nacional del Cobre de Chile, 3.75%, 01/15/31(b)

    730       793,875  

Empresa de Transporte de Pasajeros Metro SA, 3.65%, 05/07/30(b)

    1,110       1,194,083  
   

 

 

 
      1,987,958  
China — 0.1%  

Chengdu Xingcheng Investment Group Co. Ltd., 2.50%, 03/20/21

  EUR   800       886,718  

China Construction Bank Corp.

   

(5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 1.88%), 4.25%, 02/27/29(h)

  USD   805       859,841  

(5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 2.15%), 2.45%, 06/24/30(h)

    2,950       2,938,490  

China Minmetals Corp., (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 4.72%), 3.75%(h)(j)

    339       342,072  

China Resources Land Ltd., (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 5.14%), 3.75%(h)(j)

    1,450       1,467,211  

Chinalco Capital Holdings Ltd. 4.25%, 04/21/22

    1,025       1,035,891  

(5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 5.79%), 4.10%, (h)(j)

    735       737,756  

CITIC Ltd., 2.85%, 02/25/30

    1,140       1,166,363  

Franshion Brilliant Ltd., 4.25%, 07/23/29

    1,000       1,000,625  

Guangxi Financial Investment Group Co. Ltd., 5.75%, 01/23/21

    500       482,188  

Huarong Finance 2019 Co. Ltd.
3.25%, 11/13/24

    2,300       2,317,683  

4.50%, 05/29/29

    1,300       1,384,906  

3.88%, 11/13/29

    1,600       1,634,500  

Huarong Finance II Co. Ltd., 5.00%, 11/19/25

    1,550       1,687,562  

Inner Mongolia High-Grade High Way Construction And Development Co. Ltd., 4.38%, 12/04/20

    300       298,824  

Leader Goal International Ltd., (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 6.92%), 4.25%(h)(j)

    700       707,000  

Rongshi International Finance Ltd., 3.75%, 05/21/29

    1,945       2,149,225  

Sino-Ocean Land Treasure IV Ltd.
5.25%, 04/30/22

    480       491,510  

4.75%, 08/05/29

    715       710,084  

Sinopec Group Overseas Development 2018 Ltd., 2.15%, 05/13/25(b)

    2,345       2,411,997  

Sunny Express Enterprises Corp., 3.13%, 04/23/30

    1,385       1,451,238  
   

 

 

 
          26,161,684  
Colombia — 0.1%  

Ecopetrol SA
5.38%, 06/26/26

    11,184       11,757,739  
Security   Par
(000)
    Value  
Colombia (continued)  

Ecopetrol SA
6.88%, 04/29/30

  USD     2,198     $ 2,519,457  

Empresas Publicas de Medellin ESP, 4.25%, 07/18/29(b)

    1,400       1,398,688  

Grupo Energia Bogota SA ESP, 4.88%, 05/15/30(b)

    1,525       1,608,875  
   

 

 

 
      17,284,759  
Hong Kong — 0.0%  

Nanyang Commercial Bank Ltd., (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 2.18%), 3.80%, 11/20/29(h)

    1,750       1,754,922  
   

 

 

 
India — 0.0%  

Greenko Dutch BV, 5.25%, 07/24/24

    200       197,813  

Greenko Investment Co., 4.88%, 08/16/23

    200       194,563  

Greenko Solar Mauritius Ltd., 5.55%, 01/29/25

    200       196,640  

Oil India Ltd., 5.13%, 02/04/29

    880       936,375  

Power Finance Corp. Ltd.
3.75%, 06/18/24

    1,060       1,067,619  

3.75%, 12/06/27

    1,130       1,080,562  

4.50%, 06/18/29

    893       884,907  

REC Ltd.
4.75%, 05/19/23

    725       748,040  

4.63%, 03/22/28

    670       675,862  
   

 

 

 
      5,982,381  
Indonesia — 0.0%  

Pertamina Persero PT, 4.18%, 01/21/50

    2,800       2,808,792  
   

 

 

 
Kuwait — 0.1%  

Equate Petrochemical BV, 4.25%, 11/03/26

    879       933,938  

MEGlobal Canada ULC
5.00%, 05/18/25(b)

    3,035       3,250,295  

5.00%, 05/18/25

    3,400       3,656,462  

5.88%, 05/18/30(b)

    1,770       2,003,419  

5.88%, 05/18/30

    1,350       1,523,704  
   

 

 

 
      11,367,818  
Malaysia — 0.1%  

1MDB Energy Ltd., 5.99%, 05/11/22

    1,500       1,554,374  

Petronas Capital Ltd.
3.50%, 04/21/30(b)

    2,628       2,912,186  

3.50%, 04/21/30

    1,300       1,440,579  

4.55%, 04/21/50(b)

    1,144       1,453,898  

4.55%, 04/21/50

    2,490       3,164,516  

4.80%, 04/21/60(b)

    1,294       1,769,894  
   

 

 

 
          12,295,447  
Mexico — 0.1%  

Petroleos Mexicanos
5.50%, 01/21/21

    600       600,188  

4.25%, 01/15/25

    3,372       3,063,462  

4.50%, 01/23/26

    6,952       6,065,620  

5.95%, 01/28/31(b)

    310       254,696  

(3 mo. LIBOR US + 3.65%), 3.97%, 03/11/22(a)

    2,287       2,204,668  
   

 

 

 
      12,188,634  
Morocco — 0.0%  

OCP SA, 4.50%, 10/22/25

    1,171       1,217,840  
   

 

 

 
Qatar — 0.0%  

Ooredoo International Finance Ltd., 5.00%, 10/19/25

    878       1,007,505  
   

 

 

 
 

 

 

34  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Saudi Arabia — 0.0%  

SABIC Capital II BV

     

4.00%, 10/10/23

    USD       1,273     $ 1,357,336  

4.00%, 10/10/23(b)

      1,864       1,987,490  
     

 

 

 
        3,344,826  
Singapore — 0.0%  

BOC Aviation Ltd.

     

3.25%, 04/29/25(b)

      2,933       2,996,854  

3.00%, 09/11/29

      2,000       1,977,500  
     

 

 

 
        4,974,354  
United Arab Emirates — 0.1%  

Abu Dhabi Crude Oil Pipeline LLC, 4.60%, 11/02/47

      1,100       1,303,844  

DP World Crescent Ltd., 3.91%, 05/31/23

      2,019       2,097,236  

MDGH — GMTN BV

     

2.50%, 11/07/24(b)

      5,309       5,468,270  

2.88%, 11/07/29(b)

      1,779       1,864,614  

3.70%, 11/07/49

      1,875       1,983,399  
     

 

 

 
        12,717,363  
United States — 0.0%  

Citgo Holding, Inc.,
9.25%, 08/01/24(b)

      1,775       1,766,125  
     

 

 

 

Total Foreign Agency Obligations — 0.7%
(Cost: $126,693,217)

 

    133,567,683  
     

 

 

 

Foreign Government Obligations

 

Brazil — 0.1%  

Federative Republic of Brazil,
2.88%, 06/06/25

      10,638       10,489,068  
     

 

 

 
Cayman Islands — 0.0%  

People’s Republic of China,
3.30%, 07/04/23

    CNH       3,500       507,122  
     

 

 

 
China — 0.1%  

People’s Republic of China,
3.29%, 05/23/29

    CNY       159,300       23,023,535  
     

 

 

 
Colombia — 0.3%  

Colombian TES

     

6.25%, 11/26/25

    COP       12,296,000       3,530,667  

7.25%, 10/18/34

      34,310,100       9,432,721  

Republic of Colombia

     

3.88%, 04/25/27

    USD       16,282       17,253,832  

4.50%, 03/15/29

      10,000       10,943,750  

3.13%, 04/15/31

      3,198       3,175,614  

5.20%, 05/15/49

      7,440       8,712,240  

4.13%, 05/15/51

      3,193       3,212,956  
     

 

 

 
        56,261,780  
Egypt — 0.0%  

Arab Republic of Egypt

     

5.63%, 04/16/30

    EUR       2,767       2,799,781  

6.38%, 04/11/31(b)

      2,459       2,555,473  

8.88%, 05/29/50(b)

    USD       3,995       3,945,062  
     

 

 

 
        9,300,316  
Hungary — 0.1%  

Republic of Hungary,
5.38%, 03/25/24

      8,710       9,885,850  
     

 

 

 
Indonesia — 0.4%  

Perusahaan Penerbit SBSN Indonesia III

     

2.80%, 06/23/30(b)

      9,130       9,107,175  

3.80%, 06/23/50

      1,504       1,541,600  

Republic of Indonesia

     

6.50%, 06/15/25

    IDR       111,419,000       7,780,221  

7.00%, 05/15/27

      88,851,000       6,229,211  

4.10%, 04/24/28

    USD       9,523       10,561,602  

 

Security         

Par

(000)

    Value  
Indonesia (continued)                  

Republic of Indonesia

     

2.85%, 02/14/30

    USD       8,000     $ 8,150,000  

7.00%, 09/15/30

    IDR       39,330,000       2,702,303  

6.63%, 05/15/33

      25,942,000       1,659,852  

7.50%, 06/15/35

      153,315,000       10,623,919  

8.38%, 04/15/39

      222,188,000       16,331,634  
     

 

 

 
        74,687,517  
Maldives — 0.0%  

Republic of Maldives, 7.00%, 06/07/22

    USD       775       583,188  
     

 

 

 
Mexico — 0.3%  

United Mexican States

     

4.15%, 03/28/27

      28,228       30,288,644  

4.75%, 04/27/32

      10,867       11,970,000  

4.50%, 01/31/50

      14,420       14,867,020  
     

 

 

 
        57,125,664  
Panama — 0.1%  

Republic of Panama, 3.88%, 03/17/28

      23,318       26,203,602  
     

 

 

 
Peru — 0.1%  

Republic of Peru, 4.13%, 08/25/27

      14,574       16,732,774  
     

 

 

 
Philippines — 0.2%  

Republic of the Philippines,
3.00%, 02/01/28

      26,655       28,747,951  
     

 

 

 
Qatar — 0.0%  

State of Qatar, 3.75%, 04/16/30(b)

      6,087       6,944,887  
     

 

 

 
Russian Federation — 0.3%  

Russian Federation

     

8.15%, 02/03/27

    RUB       564,263       9,138,020  

6.00%, 10/06/27

      316,725       4,584,018  

6.90%, 05/23/29

      1,303,451       19,820,404  

8.50%, 09/17/31

      1,265,104       21,481,703  
     

 

 

 
        55,024,145  
Saudi Arabia — 0.2%  

Kingdom of Saudi Arabia

     

2.90%, 10/22/25(b)

    USD       23,870       25,302,200  

3.25%, 10/22/30

      10,735       11,521,339  
     

 

 

 
        36,823,539  
Sri Lanka — 0.0%  

Republic of Sri Lanka

     

6.85%, 03/14/24

      625       431,250  

6.35%, 06/28/24

      200       138,000  

7.85%, 03/14/29

      200       130,000  

7.55%, 03/28/30

      1,200       771,000  
     

 

 

 
        1,470,250  
Ukraine — 0.1%  

Ukraine Government

     

6.75%, 06/20/26

    EUR       2,600       2,971,292  

9.75%, 11/01/28

    USD       11,527       13,169,597  

7.38%, 09/25/32

      1,805       1,812,897  
     

 

 

 
        17,953,786  
United Arab Emirates — 0.0%  

Emirate of Abu Dhabi

     

2.50%, 04/16/25(b)

      7,494       7,784,393  

3.13%, 09/30/49

      1,925       2,004,406  
     

 

 

 
        9,788,799  

 

 

 

 

  35


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Uruguay — 0.1%  

Republic of Uruguay

     

4.38%, 10/27/27

    USD       9,858     $ 11,281,653  

5.10%, 06/18/50

      3,180       4,100,212  
     

 

 

 
        15,381,865  
     

 

 

 

Total Foreign Government Obligations — 2.4%
(Cost: $443,339,202)

 

    456,935,638  
     

 

 

 
            Shares         

Investment Companies(p)

     
Fixed-Income Funds — 1.9%                  

iShares iBoxx $ Investment Grade Corporate Bond ETF

      1,400,660       188,388,770  

iShares iBoxx High Yield Corporate Bond ETF

      2,062,538       168,344,352  
     

 

 

 
        356,733,122  
     

 

 

 

Total Investment Companies — 1.9%
(Cost: $353,670,764)

        356,733,122  
     

 

 

 
           

Par

(000)

        

Municipal Bonds

     
Arizona — 0.0%                  

Arizona Health Facilities Authority, RB,
1.01%, 01/01/37(d)

    USD       1,355       1,274,426  

Salt River Project Agricultural Improvement & Power District, RB, Series A, 5.00%, 12/01/45

      3,530       4,148,032  
     

 

 

 
        5,422,458  
California — 1.1%                  

Bay Area Toll Authority

     

RB, 2.43%, 04/01/26

      7,195       7,656,991  

RB, Series S1, 6.92%, 04/01/40

      3,145       5,011,998  

RB, Series S1, 7.04%, 04/01/50

      13,280       23,893,907  

California Health Facilities Financing Authority, RB, Series A,
5.00%, 08/15/33

      1,190       1,447,218  

California Pollution Control Financing Authority, RB, AMT,
5.00%, 11/21/45(b)

      1,000       1,027,630  

California State University, RB, Series B,
2.98%, 11/01/51

      10,130       10,724,023  

City of Riverside, CA Electric Revenue, RB, 7.61%, 10/01/40

      1,325       2,144,486  

Contra Costa Community College District, GO, 6.50%, 08/01/34

      570       825,121  

Los Angeles Community College District, GO, 6.60%, 08/01/42

      3,990       6,627,270  

Los Angeles Unified School District

     

GO, 5.75%, 07/01/34

      415       571,650  

GO, 6.76%, 07/01/34

      7,405       10,929,187  

Orange County Local Transportation Authority, RB, Series A,
6.91%, 02/15/41

      2,790       4,146,916  

Regents of the University of California Medical Center Pooled Revenue, RB, 6.58%, 05/15/49

      2,180       3,469,448  

Sacramento County Sanitation Districts Financing Authority, Refunding RB, NPFGC Series B, 0.77%, 12/01/35(d)

      3,500       3,032,792  

San Diego Public Facilities Financing Authority, RB, Series A,
5.00%, 05/15/39

      1,250       1,524,687  

 

Security         

Par

(000)

    Value  
California (continued)                  

San Francisco City & County Airport Comm-San Francisco International Airport, RB, 5.00%, 05/01/50

    USD       2,695     $ 3,282,079  

San Jose Redevelopment Agency Successor Agency

     

TA, Series A, 3.18%, 08/01/26

      2,025       2,233,980  

TA, Series A, 3.13%, 08/01/28

      4,275       4,685,485  

TA, Series A, 3.25%, 08/01/29

      3,585       3,934,215  

State of California

     

GO, 7.50%, 04/01/34

      2,210       3,589,283  

GO, 7.55%, 04/01/39

      4,565       8,094,019  

GO, 7.30%, 10/01/39

      2,575       4,272,363  

GO, 7.35%, 11/01/39

      720       1,200,046  

GO, Series B, 2.65%, 04/01/26

      15,890       17,271,318  

Refunding GO, 4.60%, 04/01/38

      25,730       30,091,234  

University of California

     

RB, 3.35%, 07/01/29

      15,580       17,858,264  

RB, 4.60%, 05/15/31

      2,305       2,844,647  

RB, 5.77%, 05/15/43

      8,110       12,175,137  

RB, 4.86%, 05/15/2112

      1,940       2,719,085  
     

 

 

 
        197,284,479  
Connecticut — 0.1%                  

Connecticut State Health & Educational Facilities Authority, RB, 5.00%, 07/01/45

      1,700       1,882,189  

State of Connecticut

     

GO, Series A, 3.31%, 01/15/26

      3,710       4,050,541  

GO, Series A, 2.55%, 07/01/28

      990       1,041,935  

GO, Series A, 5.85%, 03/15/32

      7,805       10,599,737  

GO, Series D, 5.09%, 10/01/30

      7,910       9,574,818  
     

 

 

 
        27,149,220  
District of Columbia — 0.0%                  

District of Columbia

     

RB, 5.00%, 07/15/34

      775       908,238  

RB, 5.00%, 07/15/35

      775       905,603  

Metropolitan Washington Airports Authority Dulles Toll Road Revenue, RB, Series A, 5.00%, 10/01/53

      1,000       1,033,550  
     

 

 

 
        2,847,391  
Florida — 0.1%                  

Canaveral Port Authority

     

RB, Series A, 5.00%, 06/01/45

      1,890       2,059,571  

RB, Series B, 5.00%, 06/01/48

      600       657,156  

County of Broward, FL Airport System Revenue

     

RB, 2.81%, 10/01/31

      1,610       1,588,362  

RB, 2.91%, 10/01/32

      1,435       1,421,626  

RB, Series C, 2.50%, 10/01/28

      5,360       5,253,283  

County of Miami-Dade, FL Aviation Revenue

     

RB, 2.53%, 10/01/30

      5,705       5,501,217  

RB, 4.06%, 10/01/31

      1,765       1,897,198  

RB, 5.00%, 10/01/40

      1,650       1,922,745  

RB, Series A, 5.00%, 10/01/38

      1,600       1,807,920  

Refunding RB, Series D, 3.35%, 10/01/29

      560       575,030  

Refunding RB, Series D, 3.45%, 10/01/30

      1,030       1,060,849  

Refunding RB, Series D, 3.50%, 10/01/31

      965       994,046  

Sumter Landing Community Development District, RB, 4.17%, 10/01/47

      920       1,032,792  
     

 

 

 
        25,771,795  
Georgia — 0.1%                  

City of Atlanta, GA Water & Wastewater Revenue, Refunding RB, 5.00%, 11/01/40

      885       1,043,592  

 

 

 

 

36  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Georgia (continued)  

Metropolitan Atlanta Rapid Transit Authority,
RB, Series A, 5.00%, 07/01/41

    USD       2,220     $ 2,620,910  

Municipal Electric Authority of Georgia

     

RB, 6.64%, 04/01/57

      2,487       3,614,855  

RB, 6.66%, 04/01/57

      1,115       1,665,609  
     

 

 

 
        8,944,966  
Idaho — 0.0%  

Idaho Health Facilities Authority, RB, Series A,
5.00%, 12/01/47

      1,155       1,356,328  
     

 

 

 
Illinois — 0.1%  

State of Illinois, GO, 5.10%, 06/01/33

      13,140       13,333,815  
     

 

 

 
Indiana — 0.0%  

Indiana Finance Authority,
RB, 5.00%, 10/01/45

      3,120       3,576,643  

Indiana Housing & Community Development Authority, RB, GNMA Series A,
3.80%, 07/01/38

      845       930,599  
     

 

 

 
        4,507,242  
Louisiana — 0.0%  

Louisiana Public Facilities Authority, RB, 5.00%, 07/01/48

      1,240       1,459,877  

New Orleans Aviation Board, RB,
5.00%, 01/01/40

      1,140       1,270,040  
     

 

 

 
        2,729,917  
Maryland — 0.0%  

Maryland Health & Higher Educational Facilities Authority, Refunding
RB, 5.00%, 08/15/27

      1,305       1,517,049  
     

 

 

 
Massachusetts — 0.2%  

Commonwealth of Massachusetts

     

GO, 5.46%, 12/01/39

      430       620,675  

GO, 2.90%, 09/01/49

      1,980       2,128,441  

Massachusetts Development Finance Agency

     

RB, 5.00%, 07/01/47

      1,260       1,435,140  

RB, Series J2, 5.00%, 07/01/43

      2,390       2,781,769  

RB, Series J2, 5.00%, 07/01/48

      1,035       1,199,886  

Massachusetts HFA

     

RB, Series A, 4.50%, 12/01/48

      1,160       1,237,789  

Refunding RB, AMT Series B,
4.50%, 12/01/39

      910       957,647  

Refunding RB, AMT Series B,
4.60%, 12/01/44

      960       1,033,296  

Massachusetts School Building Authority

     

RB, 2.87%, 10/15/31

      6,940       7,318,716  

RB, 2.97%, 10/15/32

      4,300       4,544,584  

Massachusetts Water Resources Authority, Refunding RB, Series B, 5.00%, 08/01/40

      920       1,111,222  

University of Massachusetts Building Authority, RB, 5.45%, 11/01/40

      8,635       11,981,408  
     

 

 

 
        36,350,573  
Michigan — 0.1%  

Great Lakes Water Authority Sewage Disposal System Revenue, RB, 3.06%, 07/01/39

      2,135       2,272,750  

Great Lakes Water Authority Water Supply System Revenue, RB, 5.25%, 07/01/33

      755       899,099  

Michigan Finance Authority

     

RB, 5.00%, 11/15/28

      1,380       1,660,733  

RB, 5.00%, 06/01/39

      840       946,025  

RB, 5.00%, 11/15/41

      850       979,396  

RB, 2.86%, 09/01/49(d)

      6,090       6,291,031  

 

Security          Par
(000)
    Value  
Michigan (continued)                  

Michigan State HDA

     

RB, Series A, 3.55%, 10/01/33

    USD       1,055     $ 1,161,312  

RB, Series A, 4.00%, 10/01/43

      1,010       1,109,808  

RB, Series A, 4.05%, 10/01/48

      465       511,119  

RB, Series A, 4.15%, 10/01/53

      2,400       2,598,120  

Royal Oak Hospital Finance Authority, RB, Series D, 5.00%, 09/01/39

      1,160       1,299,815  
     

 

 

 
        19,729,208  
Mississippi — 0.0%  

Mississippi Hospital Equipment & Facilities Authority, RB, 5.00%, 09/01/46

      1,610       1,762,081  
     

 

 

 
Missouri — 0.0%  

Health & Educational Facilities Authority of the State of Missouri

     

RB, 5.00%, 11/15/29

      840       1,004,640  

RB, Series A, 3.23%, 05/15/50

      1,245       1,458,517  
     

 

 

 
        2,463,157  
New Jersey — 0.1%  

New Jersey Transportation Trust Fund Authority, RB, Series C,
5.75%, 12/15/28

      1,670       1,934,612  

New Jersey Turnpike Authority, RB, Series F, 7.41%, 01/01/40

      2,329       3,957,390  

Rutgers The State University of New Jersey, RB, 3.27%, 05/01/43

      4,555       4,692,789  
     

 

 

 
        10,584,791  
New York — 0.8%  

City of New York, NY

     

GO, 2.85%, 08/01/31

      5,380       5,712,484  

GO, 2.90%, 08/01/32

      9,025       9,581,933  

GO, Series A-2, 2.49%, 08/01/27

      2,590       2,728,668  

GO, Series D2, 3.76%, 12/01/27

      2,675       3,053,272  

Dutchess County Local Development Corp., RB, 5.00%, 07/01/46

      2,685       2,923,885  

Metropolitan Transportation Authority

     

RB, 5.87%, 11/15/39

      735       890,938  

RB, 6.67%, 11/15/39

      350       454,542  

RB, AGM Series C, 5.00%, 11/15/41

      1,860       2,244,871  

RB, Series E, 6.81%, 11/15/40

      860       1,136,765  

New York City Housing Development Corp.

     

RB, 3.70%, 11/01/38

      1,090       1,159,662  

RB, 4.00%, 11/01/53

      2,510       2,655,605  

RB, Series C-1B, 3.85%, 11/01/43

      3,300       3,517,338  

New York City Transitional Finance Authority Future Tax Secured Revenue

     

RB, 3.75%, 11/01/25

      4,050       4,427,946  

RB, Series B3, 3.90%, 08/01/31

      4,860       5,562,562  

RB, Series C3, 3.35%, 11/01/30

      6,190       6,887,118  

RB, Series C4, 3.55%, 05/01/25

      5,040       5,639,760  

RB, Series F2, 3.05%, 05/01/27

      4,675       5,144,884  

New York City Water & Sewer System

     

RB, 5.75%, 06/15/41

      385       593,289  

RB, 6.01%, 06/15/42

      665       1,062,045  

RB, 5.38%, 06/15/43

      2,920       2,987,744  

RB, 5.44%, 06/15/43

      3,400       5,256,026  

RB, 5.50%, 06/15/43

      5,285       5,410,677  

RB, 5.88%, 06/15/44

      1,240       1,993,436  

Refunding RB, 5.38%, 06/15/43

      1,490       1,520,426  

New York Convention Center Development Corp., Refunding RB, 5.00%, 11/15/40

      930       1,008,659  

New York Liberty Development Corp., Refunding RB, 5.00%, 11/15/44(b)

      2,200       2,276,978  

 

 

 

 

  37


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  
New York (continued)                  

New York State Dormitory Authority

     

RB, Series B, 3.14%, 07/01/43

    USD       3,080     $ 3,097,032  

RB, Series H, 5.39%, 03/15/40

      1,470       2,046,534  

Refunding RB, Series F,
3.19%, 02/15/43

      4,315       4,879,143  

New York State Urban Development Corp.

     

RB, 3.32%, 03/15/29

      4,035       4,420,665  

RB, 2.23%, 03/15/33

      5,940       5,987,164  

RB, Series B, 3.25%, 03/15/25

      2,325       2,549,897  

Refunding RB, Series B,
2.35%, 03/15/27

      5,870       6,166,670  

New York Transportation Development Corp.

     

RB, Series A, 5.00%, 07/01/46

      730       783,443  

RB, Series A, 5.25%, 01/01/50

      9,190       9,937,055  

Port Authority of New York & New Jersey

     

RB, 5.65%, 11/01/40

      2,165       3,017,079  

RB, 4.96%, 08/01/46

      4,300       5,831,832  

RB, 4.93%, 10/01/51

      4,360       6,010,129  

RB, 4.46%, 10/01/62

      2,890       3,841,793  

State of New York, Refunding GO,
Series B, 2.80%, 02/15/32

      5,195       5,572,988  
     

 

 

 
        149,972,937  
Ohio — 0.1%                  

American Municipal Power, Inc.

     

RB, Series B, 7.83%, 02/15/41

      1,500       2,428,500  

RB, Series B, 8.08%, 02/15/50

      2,650       4,819,184  

JobsOhio Beverage System

     

RB, 2.83%, 01/01/38

      5,440       5,573,770  

RB, Series B, 3.99%, 01/01/29

      8,385       9,528,881  
     

 

 

 
        22,350,335  
Oklahoma — 0.0%                  

Oklahoma Development Finance Authority

     

RB, 5.50%, 08/15/57

      3,220       3,712,338  

RB, Series B, 5.25%, 08/15/43

      1,000       1,145,320  
     

 

 

 
        4,857,658  
Oregon — 0.2%                  

Oregon School Boards Association

     

GO, AMBAC, 4.76%, 06/30/28

      5,785       6,398,210  

GO, NPFGC Series B, 5.55%, 06/30/28

      7,175       8,609,570  

GO, NPFGC Series B, 5.68%, 06/30/28

      10,105       12,394,793  

State of Oregon, GO, 5.89%, 06/01/27

      8,145       10,297,316  
     

 

 

 
        37,699,889  
Pennsylvania — 0.2%                  

City of Philadelphia, PA Airport Revenue, RB, Series B, 5.00%, 07/01/42

      1,000       1,155,130  

Commonwealth Financing Authority

     

RB, 4.14%, 06/01/38

      530       636,922  

RB, Series A, 3.86%, 06/01/38

      1,180       1,377,438  

RB, Series A, 3.81%, 06/01/41

      16,520       19,178,729  

DuBois Hospital Authority,
RB, 5.00%, 07/15/43

      1,290       1,491,434  

Pennsylvania Economic Development Financing Authority

     

RB, 5.00%, 12/31/22

      1,000       1,079,460  

RB, 5.00%, 12/31/38

      320       346,646  

Pennsylvania State University, RB,
Series D, 2.79%, 09/01/43

      4,135       4,266,907  

Pennsylvania Turnpike Commission, RB, Series B, 5.00%, 12/01/48

      2,805       3,267,460  
     

 

 

 
        32,800,126  
Puerto Rico — 0.1%                  

Commonwealth of Puerto Rico, GO, Refunding, Series A,
8.00%, 07/01/35(f)(g)

      5,625       3,374,216  

 

Security          Par
(000)
    Value  
Puerto Rico (continued)                  

Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue

     

RB, Series A-1, 0.00%, 07/01/46(k)

    USD       41,207     $ 11,605,127  

RB, Series A-1, 0.00%, 07/01/51(k)

      25,029       5,060,614  
     

 

 

 
        20,039,957  
South Carolina — 0.1%                  

Lexington County Health Services District, Inc.,
RB, 5.00%, 11/01/41

      960       1,107,129  

South Carolina Public Service Authority

     

RB, Series C, 6.45%, 01/01/50

      2,270       3,559,156  

RB, Series D, 2.39%, 12/01/23

      4,067       4,165,381  

Spartanburg County School District No. 7, GO, SCSDE Series B, 5.00%, 03/01/48

      645       810,862  
     

 

 

 
        9,642,528  
Tennessee — 0.0%                  

Metropolitan Government Nashville & Davidson County Health & Educational Facilities Board, RB, 5.00%, 07/01/46

      1,800       2,007,198  

Tennessee Housing Development Agency

     

RB, Series 3, 3.75%, 07/01/38

      975       1,058,392  

RB, Series 3, 3.85%, 07/01/43

      460       497,301  

RB, Series 3, 3.95%, 01/01/49

      360       387,828  
     

 

 

 
        3,950,719  
Texas — 0.3%                  

City of San Antonio TX Electric & Gas Systems Revenue

     

RB, 5.72%, 02/01/41

      3,180       4,575,098  

RB, 5.81%, 02/01/41

      3,260       4,862,127  

Dallas Area Rapid Transit

     

RB, Series A, 5.00%, 12/01/41

      1,780       2,090,699  

RB, Series A, 5.00%, 12/01/46

      2,410       2,796,612  

Dallas/Fort Worth International Airport

     

RB, 5.00%, 11/01/42

      2,025       2,109,706  

RB, Series A, 5.00%, 11/01/43

      60       60,923  

RB, Series A, 3.14%, 11/01/45

      2,420       2,475,612  

RB, Series A, 5.00%, 11/01/45

      3,670       3,725,527  

RB, Series H, 5.00%, 11/01/45

      2,650       2,758,041  

New Hope Cultural Education Facilities Finance Corp., RB, 5.00%, 08/15/47

      1,380       1,626,344  

San Antonio Water System, RB, Series B, 5.00%, 05/15/39

      1,520       1,795,986  

State of Texas, GO, 5.52%, 04/01/39

      10,740       15,913,351  

Texas A&M University, RB, 2.84%, 05/15/27

      2,240       2,464,314  

Texas Municipal Gas Acquisition and Supply Corp. I, RB, Series D, 6.25%, 12/15/26

      720       833,198  

Texas Private Activity Bond Surface Transportation Corp., RB, 5.00%, 12/31/55

      370       386,446  

Texas Transportation Commission, GO, 5.00%, 04/01/32(q)

      4,250       5,744,768  
     

 

 

 
        54,218,752  
Virginia — 0.1%                  

Chesapeake Bay Bridge & Tunnel District, RB, 5.00%, 07/01/51

      700       754,572  

Tobacco Settlement Financing Corp., RB, Series A-1, 6.71%, 06/01/46

      4,090       3,912,944  

Virginia Small Business Financing Authority

     

RB, 5.00%, 12/31/52

      2,535       2,790,730  

RB, 5.00%, 12/31/56

      1,000       1,097,800  
     

 

 

 
        8,556,046  

 

 

 

 

38  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Washington — 0.1%  

Central Puget Sound Regional Transit Authority,
RB, Series S1, 5.00%, 11/01/50 USD

      1,730     $ 1,976,144  

Grant County Public Utility District No. 2 Priest Rapids Hydroelectric Project,
RB, 4.58%, 01/01/40

      600       739,602  

Port of Seattle, WA, RB, Series A,
5.00%, 05/01/43

      930       1,068,895  

State of Washington

     

GO, 5.00%, 08/01/40

      1,120       1,384,354  

GO, Series A-1, 5.00%, 08/01/40

      2,720       3,239,003  

GO, Series D, 5.00%, 02/01/41

      1,880       2,296,176  
     

 

 

 
        10,704,174  
West Virginia — 0.0%                  

Tobacco Settlement Finance Authority, RB, Series A, 7.47%, 06/01/47

      4,100       4,125,625  

West Virginia Hospital Finance Authority

     

RB, 5.00%, 06/01/21

      960       995,242  

RB, 5.00%, 06/01/22

      1,050       1,129,338  

RB, 5.00%, 06/01/23

      870       968,197  

RB, 5.00%, 06/01/24

      935       1,071,323  
     

 

 

 
        8,289,725  
     

 

 

 

Total Municipal Bonds — 3.9%
(Cost: $667,479,430)

        724,837,316  
     

 

 

 

Non-Agency Mortgage-Backed Securities

 

Collateralized Mortgage Obligations — 1.4%  

Alternative Loan Trust, Series 2007- 14T2, Class A1, 6.00%, 07/25/37

      2,659       1,912,461  

American Home Mortgage Assets Trust

     

Series 2006-3, Class 2A11, (12 mo. Federal Reserve Cumulative Average US + 0.94%), 2.44%, 10/25/46(a)

      873       694,528  

Series 2006-4, Class 1A12, (1 mo. LIBOR
US + 0.21%), 0.40%, 10/25/46(a)

      2,452       1,540,183  

Series 2006-5, Class A1, (12 mo. Federal Reserve Cumulative Average US + 0.92%), 2.42%, 11/25/46(a)

      3,510       1,497,395  

Series 2007-1, Class A1, (12 mo. Federal Reserve Cumulative Average US + 0.70%), 2.20%, 02/25/47(a)

      784       420,495  

Angel Oak Mortgage Trust I LLC, Series 2019-4, Class A3, 3.30%, 07/26/49(b)(d)

      4,710       4,732,346  

Angel Oak Mortgage Trust LLC

     

Series 2020-3, Class A3,
2.87%, 04/25/65(b)(d)

      7,500       7,499,985  

Series 2020-3, Class M1,
3.81%, 04/25/65(b)(d)

      4,120       4,119,930  

APS Resecuritization Trust

     

Series 2016-1, Class 1MZ,
4.23%, 07/31/57(b)(d)

      7,245       2,510,084  

Series 2016-3, Class 3A, (1 mo. LIBOR US + 2.85%), 3.03%, 09/27/46(a)(b)

      4,924       4,871,905  

Series 2016-3, Class 4A, (1 mo. LIBOR US + 2.60%), 2.78%, 04/27/47(a)(b)

      870       861,421  

ARI Investments LLC

     

Series 2017-1, Class A,
3.08%, 01/06/25(c)(d)

      2,755       2,617,298  

Series 2019-1, 3.08%, 01/30/25(c)(d)

      3,154       3,027,365  

Banc of America Funding Trust

     

Series 2014-R2, Class 1C,
0.00%, 11/26/36(b)(d)

      3,995       873,470  

 

Security         

Par

(000)

    Value  
Collateralized Mortgage Obligations (continued)  

Banc of America Funding Trust

     

Series 2016-R2, Class 1A1,
4.70%, 05/01/33(b)(d)

    USD       1,407     $ 1,323,130  

Bear Stearns ALT-A Trust, Series 2007-1, Class 1A1, (1 mo. LIBOR US + 0.32%), 0.50%, 01/25/47(a)

      1,405       1,184,437  

Bear Stearns Asset-Backed Securities I Trust, Series 2005-AC9, Class A5,
6.25%, 12/25/35(e)

      236       215,308  

Bear Stearns Mortgage Funding Trust

     

Series 2006-SL1, Class A1, (1 mo. LIBOR US + 0.28%),
0.47%, 08/25/36(a)

      1,293       1,262,227  

Series 2007-AR2, Class A1, (1 mo. LIBOR US + 0.17%),
0.35%, 03/25/37(a)

      343       297,981  

Series 2007-AR3, Class 1A1, (1 mo. LIBOR US + 0.14%), 0.33%, 03/25/37(a)

      655       590,816  

Series 2007-AR4, Class 2A1, (1 mo. LIBOR US + 0.21%), 0.40%, 06/25/37(a)

      574       520,384  

BlackRock Capital Finance LP, Series 1997-R2, Class AP,
1.66%, 12/25/35(b)(d)(p)

      3       3,145  

Chase Mortgage Finance Trust, Series 2007-S6, Class 1A1, 6.00%, 12/25/37

      24,266       16,558,698  

Citicorp Mortgage Securities Trust

     

Series 2007-9, Class 1A1,
6.25%, 12/25/37

      1,843       1,620,507  

Series 2008-2, Class 1A1,
6.50%, 06/25/38

      5,746       4,965,422  

Citigroup Mortgage Loan Trust, Series 2007-2, Class 2A, 6.00%, 11/25/36

      13       13,038  

COLT Mortgage Loan Trust, Series 2020-3,
Class A3, 2.38%, 04/27/65(b)(d)

      2,600       2,604,291  

Countrywide Alternative Loan Trust

     

Series 2005-22T1, Class A1, (1 mo. LIBOR US + 0.35%), 0.53%, 06/25/35(a)

      3,933       3,025,126  

Series 2005-72, Class A3, (1 mo. LIBOR US + 0.60%), 0.78%, 01/25/36(a)

      634       561,645  

Series 2005-76, Class 2A1, (12 mo. Federal Reserve Cumulative Average US
+ 1.00%), 2.50%, 02/25/36(a)

      795       707,060  

Series 2006-11CB, Class 3A1,
6.50%, 05/25/36

      1,669       1,237,876  

Series 2006-15CB, Class A1,
6.50%, 06/25/36

      403       293,536  

Series 2006-23CB, Class 2A5, (1 mo. LIBOR US + 0.40%),
0.59%, 08/25/36(a)

      5,672       1,168,347  

Series 2006-OA14, Class 1A1, (12 mo. Federal Reserve Cumulative Average US
+ 1.73%), 3.23%, 11/25/46(a)

      3,312       2,672,577  

Series 2006-OA16, Class A4C, (1 mo. LIBOR US + 0.34%), 0.52%, 10/25/46(a)

      4,074       2,746,720  

Series 2006-OA21, Class A1, (1 mo. LIBOR
US + 0.19%), 0.38%, 03/20/47(a)

      8,874       7,076,442  

Series 2006-OA8, Class 1A1, (1 mo. LIBOR
US + 0.19%), 0.37%, 07/25/46(a)

      466       397,087  

Series 2006-OC10, Class 2A3, (1 mo. LIBOR
US + 0.23%), 0.41%, 11/25/36(a)

      1,605       1,206,486  

Series 2006-OC7, Class 2A3, (1 mo. LIBOR US + 0.25%),
0.43%, 07/25/46(a)

      2,316       1,948,355  

Series 2007-3T1, Class 1A1,
6.00%, 04/25/37

      349       229,326  

Series 2007-OA3, Class 1A1, (1 mo. LIBOR
US + 0.14%), 0.33%, 04/25/47(a)

      1,082       951,986  

Series 2007-OA3, Class 2A2, (1 mo. LIBOR
US + 0.18%), 0.36%, 04/25/47(a)

      51       7,875  

 

 

 

 

  39


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Collateralized Mortgage Obligations (continued)  

Countrywide Alternative Loan Trust

     

Series 2007-OA8, Class 2A1, (1 mo. LIBOR US + 0.18%), 0.36%, 06/25/47(a)

    USD       366     $ 271,293  

Series 2007-OH2, Class A2A, (1 mo. LIBOR US + 0.24%), 0.42%, 08/25/47(a)

      460       410,615  

Countrywide Home Loan Mortgage Pass- Through Trust

     

Series 2004-29, Class 1A1, (1 mo. LIBOR US + 0.54%), 0.73%, 02/25/35(a)

      269       245,471  

Series 2006-OA4, Class A1, (12 mo. Federal Reserve Cumulative Average US + 0.96%), 2.46%, 04/25/46(a)

      1,447       615,955  

Series 2006-OA5, Class 3A1, (1 mo. LIBOR US + 0.20%), 0.39%, 04/25/46(a)

      693       612,023  

Series 2007-15, Class 2A2,
6.50%, 09/25/37

      9,300       5,827,209  

Credit Suisse Commercial Mortgage Trust

     

Series 2009-12R, Class 3A1,
6.50%, 10/27/37(b)

      8,103       4,429,139  

Series 2009-5R, Class 4A4,
3.21%, 06/25/36(b)(d)

      1,703       1,420,149  

Series 2014-11R, Class 16A1,
3.83%, 09/27/47(b)(d)

      1,054       1,064,994  

Series 2014-4R, Class 16A3, (1 mo. LIBOR US + 0.20%),
0.37%, 02/27/36(a)(b)(c)

      734       668,834  

Series 2014-9R, Class 9A1, (1 mo. LIBOR US + 0.12%), 0.29%, 08/27/36(a)(b)

      1,349       1,212,669  

Series 2019-JR1, Class A1,
4.10%, 09/27/66(b)(d)

      32,044       32,145,857  

CSFB Mortgage-Backed Pass-Through

     

Certificates, Series 2005-10, Class 10A1, (1 mo. LIBOR US + 1.35%),
1.53%, 11/25/35(a)

      1,293       265,261  

Deephaven Residential Mortgage Trust, Series 2020-2, Class A3,
2.86%, 05/25/65(b)

      3,800       3,807,432  

Deutsche Alt-A Securities Mortgage Loan Trust, Series 2007-OA4, Class A2A, (1 mo. LIBOR US + 0.17%),
0.35%, 08/25/47(a)

      1,260       827,291  

Deutsche Alt-A Securities, Inc., Series 2007- RS1, Class A2, (1 mo. LIBOR US + 0.50%), 0.67%, 01/27/37(a)(b)

      41       39,339  

Deutsche Alt-B Securities Mortgage Loan Trust

     

Series 2006-AB3, Class A3,
6.51%, 07/25/36(d)

      455       419,163  

Series 2006-AB3, Class A8,
6.36%, 07/25/36(d)

      290       267,300  

GreenPoint Mortgage Funding Trust, Series 2006-AR2, Class 4A1, (12 mo. Federal Reserve Cumulative Average US + 2.00%), 3.50%, 03/25/36(a)

      886       823,529  

GSR Mortgage Loan Trust, Series 2007-1F, Class 2A4, 5.50%, 01/25/37

      233       258,631  

HarborView Mortgage Loan Trust

     

Series 2006-12, Class 1A1A, (1 mo. LIBOR US + 0.21%), 0.40%, 12/19/36(a)

      14,209       11,343,906  

Series 2007-4, Class 2A2, (1 mo. LIBOR US + 0.25%), 0.44%, 07/19/47(a)

      757       626,847  

Impac CMB Trust

     

Series 2004-11, Class 1A2, (1 mo. LIBOR US + 0.52%), 0.71%, 03/25/35(a)

      1,264       1,198,323  

Series 2005-6, Class 1A1, (1 mo. LIBOR US + 0.50%), 0.68%, 10/25/35(a)

      993       907,793  

 

Security          Par
(000)
    Value  
Collateralized Mortgage Obligations (continued)  

IndyMac Index Mortgage Loan Trust

     

Series 2006-AR15, Class A1, (1 mo. LIBOR US + 0.12%), 0.30%, 07/25/36(a)

    USD       536     $ 463,506  

Series 2007-AR19, Class 3A1,
3.54%, 09/25/37(d)

      3,064       2,035,758  

Series 2007-FLX5, Class 2A2, (1 mo. LIBOR US + 0.24%), 0.42%, 08/25/37(a)

      1,034       851,991  

JPMorgan Alternative Loan Trust

     

Series 2007-A1, Class 1A4, (1 mo. LIBOR US + 0.42%), 0.61%, 03/25/37(a)

      1,604       1,476,912  

Series 2007-A2, Class 2A1,
3.80%, 05/25/37(d)

      353       304,385  

Legacy Mortgage Asset Trust, Series 2019-SL1, Class A, 4.00%, 12/28/54(b)(d)

      4,391       4,420,536  

Lehman XS Trust, Series 2007-20N, Class A1, (1 mo. LIBOR US + 1.15%),
1.34%, 12/25/37(a)

      958       860,872  

LSTAR Securities Investment Trust, Series 2019-1, Class A1, (1 mo. LIBOR US + 1.70%), 1.87%, 03/01/24(a)(b)

      2,905       2,928,505  

MASTR Resecuritization Trust,
Series 2008-3, Class A1,
0.58%, 08/25/37(b)(d)

      1,119       564,674  

MCM Trust

     

Series 2018-NPL1, Class A,
4.00%, 05/28/58(b)

      1,276       1,284,057  

Series 2018-NPL1, Class B,
0.00%, 05/28/58(b)

      8,009       5,561,414  

Series 2018-NPL2, Class A,
4.00%, 10/25/28(b)(c)(e)

      4,124       3,711,377  

Series 2018-NPL2, Class B,
0.00%, 10/25/28(b)

      13,024       3,884,987  

Merrill Lynch Alternative Note Asset Trust, Series 2007-OAR2, Class A2, (1 mo. LIBOR US + 0.21%), 0.40%, 04/25/37(a)

      2,296       2,005,941  

Merrill Lynch Mortgage Investors Trust, Series 2006-A3, Class 6A1,
3.40%, 05/25/36(d)

      1,254       1,129,138  

Mortgage Loan Resecuritization Trust, Series 2009-RS1, Class A85, (1 mo. LIBOR US + 0.34%), 0.51%, 04/16/36(a)(b)

      7,868       6,799,458  

New Residential Mortgage Loan Trust, Series 2019-2A, Class A1,
4.25%, 12/25/57(b)(d)

      1,996       2,131,879  

Nomura Asset Acceptance Corp. Alternative Loan Trust

     

Series 2001-R1A, Class A,
7.00%, 02/19/30(b)(d)

      456       462,607  

Series 2006-AF1, Class 1A4,
6.63%, 05/25/36(e)

      582       199,254  

Series 2007-2, Class A4, (1 mo. LIBOR US + 0.42%), 0.61%, 06/25/37(a)

      412       329,264  

PRPM LLC, Series 2019-1A, Class A1,
4.50%, 01/25/24(b)(e)

      2,863       2,874,624  

RALI Trust, Series 2007-QH9, Class A1, 2.85%, 11/25/37(d)

      783       682,892  

Reperforming Loan REMIC Trust

     

Series 2005-R2, Class 1AF1, (1 mo. LIBOR US + 0.34%), 0.52%, 06/25/35(a)(b)

      485       451,082  

Series 2005-R3, Class AF, (1 mo. LIBOR US + 0.40%), 0.59%, 09/25/35(a)(b)

      155       134,179  

 

 

 

 

40  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Collateralized Mortgage Obligations (continued)  

Residential Mortgage Loan Trust

     

Series 2020-2, Class A2,
2.51%, 05/25/60(b)(d)

    USD       3,500     $ 3,499,928  

Series 2020-2, Class M1,
3.57%, 05/25/60(b)(d)

      7,854       7,853,967  

Seasoned Credit Risk Transfer Trust, Series 2018-1, Class BX,
1.59%, 05/25/57(d)

      546       243,916  

Sequoia Mortgage Trust, Series 2007-3, Class 2AA1, 3.68%, 07/20/37(d)

      1,496       1,319,946  

Structured Adjustable Rate Mortgage Loan Trust, Series 2006-3, Class 4A,
3.69%, 04/25/36(d)

      929       703,692  

Structured Asset Mortgage Investments II Trust

     

Series 2006-AR4, Class 3A1, (1 mo. LIBOR US + 0.19%),
0.37%, 06/25/36(a)

      2,475       2,142,945  

Series 2006-AR5, Class 2A1, (1 mo. LIBOR US + 0.21%),
0.40%, 05/25/46(a)

      568       474,422  

Thornburg Mortgage Securities Trust, Series 2007-3, Class 4A1, (12 mo. LIBOR US + 1.25%), 1.82%, 06/25/47(a)

      361       331,316  

TVC Mortgage Trust, Series 2020-RTL1, Class A1, 3.47%, 09/25/24(b)

      1,960       1,944,231  

Verus Securitization Trust

     

Series 2020-INV1, Class A2,
3.04%, 04/25/60(b)(d)

      1,895       1,903,376  

Series 2020-INV1, Class A3,
3.89%, 04/25/60(b)(d)

      1,800       1,804,913  

Vista Point Securitization Trust, Series 2020-1, Class A1, 1.76%, 03/25/65(b)(d)

      16,487       16,486,771  

Washington Mutual Mortgage Pass-Through Certificates Trust

     

Series 2006-1, Class 4CB,
6.50%, 02/25/36

      1,403       1,206,736  

Series 2006-4, Class 1A1,
6.00%, 04/25/36

      4,297       4,216,133  

Series 2006-4, Class 3A1,
6.50%, 05/25/36(e)

      1,357       1,244,787  

Series 2006-4, Class 3A5,
6.35%, 05/25/36(e)

      526       482,651  

Series 2007-OA5, Class 2A, (Cost of Funds for the 11th District of San Francisco + 1.25%),
1.99%, 06/25/47(a)

      1,939       1,613,364  
     

 

 

 
        255,300,103  
Commercial Mortgage-Backed Securities — 3.1%  

1211 Avenue of the Americas Trust

     

Series 2015-1211, Class D,
4.28%, 08/10/35(b)(d)

      6,157       6,351,106  

Series 2015-1211, Class E,
4.28%, 08/10/35(b)(d)

      1,110       1,050,052  

245 Park Avenue Trust

     

Series 2017-245P, Class D,
3.78%, 06/05/37(b)(d)

      480       479,289  

Series 2017-245P, Class E,
3.78%, 06/05/37(b)(d)

      1,699       1,591,355  

280 Park Avenue Mortgage Trust

     

Series 2017-280P, Class D, (1 mo. LIBOR US + 1.54%),
1.72%, 09/15/34(a)(b)

      2,920       2,819,140  

Series 2017-280P, Class E, (1 mo. LIBOR US + 2.12%),
2.30%, 09/15/34(a)(b)

      5,835       5,514,895  

Series 2017-280P, Class F, (1 mo. LIBOR US + 2.83%),
3.01%, 09/15/34(a)(b)

      630       582,865  

Americold LLC, Series 2010-ARTA, Class C, 6.81%, 01/14/29(b)

      700       701,224  

AOA Mortgage Trust, Series 2015-1177, Class C, 3.11%, 12/13/29(b)(d)

      1,340       1,343,221  

 

Security         

Par

(000)

    Value  
Commercial Mortgage-Backed Securities (continued)  

Ashford Hospitality Trust, Series 2018-ASHF, Class D, (1 mo. LIBOR US + 2.10%),
2.29%, 04/15/35(a)(b)

    USD       740     $ 645,441  

Atrium Hotel Portfolio Trust

     

Series 2017-ATRM, Class D, (1 mo. LIBOR US + 1.95%), 2.14%, 12/15/36(a)(b)

      4,840       3,984,819  

Series 2017-ATRM, Class E, (1 mo. LIBOR US + 3.05%), 3.24%, 12/15/36(a)(b)

      568       415,825  

Banc of America Merrill Lynch Commercial Mortgage Securities Trust

     

Series 2015-200P, Class F,
3.72%, 04/14/33(b)(d)

      1,241       1,195,823  

Series 2016-ISQ, Class C,
3.73%, 08/14/34(b)(d)

      445       428,331  

Series 2016-ISQ, Class E,
3.73%, 08/14/34(b)(d)

      5,287       4,577,546  

Series 2017-SCH, Class BF, (1 mo. LIBOR US + 1.40%), 1.59%, 11/15/33(a)(b)

      2,870       2,690,348  

Series 2017-SCH, Class CL, (1 mo. LIBOR US + 1.50%), 1.69%, 11/15/32(a)(b)

      970       825,858  

Series 2017-SCH, Class DL, (1 mo. LIBOR US + 2.00%), 2.19%, 11/15/32(a)(b)

      1,930       1,568,530  

Series 2018-DSNY, Class D, (1 mo. LIBOR US + 1.70%), 1.89%, 09/15/34(a)(b)

      3,275       2,896,428  

Bancorp Commercial Mortgage Trust, Series 2018-CR3, Class A, (1 mo. LIBOR US + 0.85%), 1.04%, 01/15/33(a)(b)

      203       193,193  

BANK

     

Series 2017-BNK9, Class A4,
3.54%, 11/15/54

      4,030       4,534,653  

Series 2019-BN19, Class C,
4.17%, 08/15/61(d)

      686       613,834  

Series 2019-BN21, Class A5,
2.85%, 10/17/52

      1,088       1,190,470  

Barclays Commercial Mortgage Trust

     

Series 2015-STP, Class E,
4.43%, 09/10/28(b)(d)

      100       98,808  

Series 2018-TALL, Class A, (1 mo. LIBOR US + 0.72%), 0.91%, 03/15/37(a)(b)

      918       872,759  

Series 2018-TALL, Class D, (1 mo. LIBOR US + 1.45%), 1.63%, 03/15/37(a)(b)

      1,120       1,017,992  

Bayview Commercial Asset Trust

     

Series 2005-4A, Class A1, (1 mo. LIBOR US + 0.30%), 0.48%, 01/25/36(a)(b)

      292       272,301  

Series 2005-4A, Class A2, (1 mo. LIBOR US + 0.39%), 0.58%, 01/25/36(a)(b)

      82       77,138  

Series 2005-4A, Class M1, (1 mo. LIBOR US + 0.45%), 0.63%, 01/25/36(a)(b)

      219       200,673  

Series 2006-1A, Class A2, (1 mo. LIBOR US + 0.36%), 0.54%, 04/25/36(a)(b)

      283       247,999  

Series 2006-3A, Class A1, (1 mo. LIBOR US + 0.25%), 0.43%, 10/25/36(a)(b)

      501       435,993  

Series 2006-3A, Class A2, (1 mo. LIBOR US + 0.30%), 0.48%, 10/25/36(a)(b)

      350       300,213  

Series 2006-4A, Class A1, (1 mo. LIBOR US + 0.23%), 0.41%, 12/25/36(a)(b)

      749       677,365  

Series 2007-2A, Class A1, (1 mo. LIBOR US + 0.27%), 0.46%, 07/25/37(a)(b)

      10,809       9,539,702  

Series 2007-6A, Class A4A, (1 mo. LIBOR US + 1.50%), 1.69%, 12/25/37(a)(b)

      1,980       1,788,315  

Series 2008-2, Class A4A, (1 mo. LIBOR US + 2.50%), 2.68%, 04/25/38(a)(b)

      2,638       2,604,458  
 

 

 

  41


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Commercial Mortgage-Backed Securities (continued)  

BBCMS Mortgage Trust

     

Series 2018-CHRS, Class E,
4.41%, 08/05/38(b)(d)

    USD       980     $ 666,044  

Series 2018-TALL, Class E, (1 mo. LIBOR US + 2.44%), 2.62%, 03/15/37(a)(b)

      1,320       1,124,441  

Series 2019-BWAY, Class D, (1 mo. LIBOR US + 2.16%),
2.35%, 11/25/34(a)(b)

      2,450       2,309,294  

Series 2020-C6, Class A4,
2.64%, 02/15/53

      4,593       4,931,441  

BBCMS Trust, Series 2015-SRCH, Class A1, 3.31%, 08/10/35(b)

      2,730       2,857,172  

BB-UBS Trust, Series 2012-SHOW, Class E, 4.16%, 11/05/36(b)(d)

      790       627,234  

Bear Stearns Commercial Mortgage Securities Trust

     

Series 2005-PWR7, Class B,
5.21%, 02/11/41(d)

      394       391,644  

Series 2007-T26, Class AM,
5.51%, 01/12/45(d)

      758       698,454  

Benchmark Mortgage Trust

     

Series 2018-B3, Class D,
3.21%, 04/10/51(b)(d)

      210       138,145  

Series 2018-B5, Class A3,
3.94%, 07/15/51

      4,840       5,613,444  

Series 2019-B10, Class 3CCA,
4.03%, 03/15/62(b)(d)

      3,610       3,625,554  

Series 2019-B14, Class 225C,
3.40%, 12/15/62(b)(d)

      2,375       2,244,914  

Series 2020-B16, Class B,
3.18%, 02/15/53(d)

      401       393,574  

Series 2020-B16, Class C,
3.66%, 02/15/53(d)

      623       561,183  

Series 2020-B16, Class D,
2.50%, 02/15/53(b)

      957       656,445  

BHMS, Series 2018-ATLS, Class A, (1 mo. LIBOR US + 1.25%), 1.44%, 07/15/35(a)(b)

      3,650       3,458,122  

BWAY Mortgage Trust

     

Series 2013-1515, Class A2,
3.45%, 03/10/33(b)

      5,084       5,446,159  

Series 2013-1515, Class D,
3.63%, 03/10/33(b)

      1,400       1,400,752  

Series 2013-1515, Class E,
3.72%, 03/10/33(b)

      250       245,774  

Series 2013-1515, Class F,
4.06%, 03/10/33(b)(d)

      250       242,616  

Series 2015-1740, Class E,
4.81%, 01/10/35(b)(d)

      1,019       957,058  

BX Commercial Mortgage Trust

     

Series 2018-BIOA, Class F, (1 mo. LIBOR US + 2.47%), 2.66%, 03/15/37(a)(b)

      3,350       3,074,315  

Series 2018-IND, Class H, (1 mo. LIBOR US + 3.00%), 3.19%, 11/15/35(a)(b)

      10,976       10,648,286  

Series 2019-XL, Class G, (1 mo. LIBOR US + 2.30%), 2.49%, 10/15/36(a)(b)

      18,727       17,976,799  

Series 2019-XL, Class J, (1 mo. LIBOR US + 2.65%), 2.84%, 10/15/36(a)(b)

      21,843       20,613,530  

Series 2020-BXLP, Class F, (1 mo. LIBOR US + 2.00%),
2.19%, 12/15/36(a)(b)

      16,454       15,630,311  

Series 2020-BXLP, Class G, (1 mo. LIBOR US + 2.50%),
2.69%, 12/15/36(a)(b)

      3,630       3,448,135  

BX Trust

     

Series 2019-OC11, Class A,
3.20%, 12/09/41(b)

      1,830       1,906,421  
Security         

Par

(000)

    Value  
Commercial Mortgage-Backed Securities (continued)  

BX Trust

     

Series 2019-OC11, Class D,
4.08%, 12/09/41(b)(d)

    USD       9,585     $ 8,854,499  

Series 2019-OC11, Class E,
4.08%, 12/09/41(b)(d)

      11,936       10,575,841  

BXP Trust

     

Series 2017-CC, Class D,
3.67%, 08/13/37(b)(d)

      750       710,487  

Series 2017-CC, Class E,
3.67%, 08/13/37(b)(d)

      1,450       1,070,759  

Series 2017-GM, Class D,

3.54%, 06/13/39(b)(d)

      590       610,972  

Series 2017-GM, Class E,
3.54%, 06/13/39(b)(d)

      1,240       1,151,190  

CAMB Commercial Mortgage Trust,

     

Series 2019-LIFE, Class D, (1 mo. LIBOR US + 1.75%), 1.94%, 12/15/37(a)(b)

      6,010       5,799,717  

CFCRE Commercial Mortgage Trust

     

Series 2016-C3, Class A3, 3.87%, 01/10/48

      410       457,276  

Series 2018-TAN, Class C,
5.30%, 02/15/33(b)

      1,160       1,106,947  

CFK Trust, Series 2019-FAX, Class D,
4.64%, 01/15/39(b)(d)

      2,643       2,714,081  

CGDBB Commercial Mortgage Trust

     

Series 2017-BIOC, Class A, (1 mo. LIBOR US + 0.79%), 0.98%, 07/15/32(a)(b)

      2,960       2,937,796  

Series 2017-BIOC, Class D, (1 mo. LIBOR US + 1.60%), 1.79%, 07/15/32(a)(b)

      4,348       4,287,131  

Series 2017-BIOC, Class E, (1 mo. LIBOR US + 2.15%), 2.34%, 07/15/32(a)(b)

      6,395       6,240,636  

CHC Commercial Mortgage Trust,
Series 2019-CHC, Class B, (1 mo. LIBOR US + 1.50%), 1.69%, 06/15/34(a)(b)

      7,262       6,716,391  

Citigroup Commercial Mortgage Trust

     

Series 2014-GC19, Class C,
5.26%, 03/10/47(d)

      440       421,440  

Series 2015-GC27, Class B,
3.77%, 02/10/48

      990       1,017,853  

Series 2016-C1, Class D,
5.12%, 05/10/49(b)(d)

      450       318,506  

Series 2016-GC37, Class C,
5.08%, 04/10/49(d)

      640       594,948  

Series 2016-P3, Class C,
5.05%, 04/15/49(d)

      120       110,871  

Series 2016-P3, Class D,
2.80%, 04/15/49(b)(d)

      136       75,282  

Series 2017-C4, Class A4,
3.47%, 10/12/50

      1,220       1,357,053  

Series 2018-C6, Class A4,
4.41%, 11/10/51

      1,960       2,330,295  

Series 2019-C7, Class A4,
3.10%, 12/15/72

      1,130       1,259,180  

Series 2019-PRM, Class E,
4.89%, 05/10/36(b)(d)

      4,801       4,691,450  

Series 2019-SMRT, Class D,
4.90%, 01/10/36(b)(d)

      7,200       7,333,140  

Series 2019-SMRT, Class E,
4.90%, 01/10/36(b)(d)

      419       418,804  

Citigroup/Deutsche Bank Commercial Mortgage Trust

     

Series 2006-CD3, Class AM,
5.65%, 10/15/48

      3,173       3,247,243  

Series 2017-CD3, Class A4,
3.63%, 02/10/50

      850       946,785  

Series 2017-CD4, Class A4,
3.51%, 05/10/50(d)

      50       55,394  
 

 

 

42  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security         

Par

(000)

    Value  
Commercial Mortgage-Backed Securities (continued)  

Commercial Mortgage Pass-Through Certificates

     

Series 2014-CR14, Class A4,
4.24%, 02/10/47(d)

    USD       855     $ 928,055  

Series 2014-CR15, Class C,
4.89%, 02/10/47(d)

      260       266,843  

Series 2014-CR18, Class A4,
3.55%, 07/15/47

      388       414,832  

Series 2014-CR19, Class A5,
3.80%, 08/10/47

      1,391       1,514,385  

Series 2015-CR24, Class A5,
3.70%, 08/10/48

      1,370       1,511,475  

Series 2015-CR25, Class A4,
3.76%, 08/10/48

      3,505       3,844,743  

Series 2015-LC21, Class C,
4.48%, 07/10/48(d)

      1,600       1,457,656  

Series 2017-COR2, Class A3,
3.51%, 09/10/50

      1,180       1,307,424  

Series 2017-COR2, Class D,
3.00%, 09/10/50(b)

      379       272,992  

Series 2018-HCLV, Class B, (1 mo. LIBOR US + 1.40%),
1.59%, 09/15/33(a)(b)

      1,420       1,337,441  

Commercial Mortgage Trust

     

Series 2005-C6, Class F,
5.92%, 06/10/44(b)(d)

      333       332,729  

Series 2013-GAM, Class A2,
3.37%, 02/10/28(b)

      1,656       1,630,323  

Series 2013-GAM, Class E,
3.53%, 02/10/28(b)(d)

      2,270       2,160,359  

Series 2014-CR21, Class A3,
3.53%, 12/10/47

      1,352       1,452,741  

Series 2014-LC15, Class A4,
4.01%, 04/10/47

      2,350       2,549,975  

Series 2014-UBS4, Class C,
4.80%, 08/10/47(d)

      1,225       1,147,060  

Series 2015-CR23, Class A4,
3.50%, 05/10/48(c)

      810       866,088  

Series 2015-LC19, Class D,
2.87%, 02/10/48(b)

      126       93,190  

Series 2015-LC23, Class A4,
3.77%, 10/10/48

      1,040       1,151,104  

Series 2016-667M, Class D,
3.29%, 10/10/36(b)(d)

      630       591,202  

CORE Mortgage Trust, Series 2019-CORE, Class F, (1 mo. LIBOR US + 2.35%),
2.54%, 12/15/31(a)(b)

      3,200       3,040,385  

Credit Suisse Commercial Mortgage Trust

     

Series 2017-PFHP, Class A, (1 mo. LIBOR US + 0.95%), 1.14%, 12/15/30(a)(b)

      900       850,623  

Series 2017-TIME, Class A,
3.65%, 11/13/39(b)

      850       819,239  

CSAIL Commercial Mortgage Trust

     

Series 2015-C2, Class A4,
3.50%, 06/15/57

      1,160       1,253,900  

Series 2015-C2, Class B,
4.21%, 06/15/57(d)

      2,020       1,977,002  

Series 2016-C5, Class B,
4.46%, 11/15/48(d)

      2,410       2,499,888  

Series 2018-C14, Class C,
5.06%, 11/15/51(d)

      300       264,723  

Series 2018-CX12, Class A4,
4.22%, 08/15/51(d)

      460       533,610  

Series 2019-C15, Class A4,
4.05%, 03/15/52

      4,080       4,701,979  

Series 2019-C15, Class D,
3.00%, 03/15/52(b)

      1,285       870,124  
Security         

Par

(000)

    Value  
Commercial Mortgage-Backed Securities (continued)  

CSAIL Commercial Mortgage Trust

     

Series 2019-C16, Class A3,
3.33%, 06/15/52

    USD       1,670     $ 1,853,295  

Series 2019-C16, Class C,
4.24%, 06/15/52(d)

      3,600       3,054,096  

Series 2019-C17, Class C,
3.93%, 09/15/52

      3,158       3,176,326  

Series 2019-C17, Class D,
2.50%, 09/15/52(b)

      2,481       1,648,202  

Series 2020-C19, Class A3,
2.56%, 03/15/53

      10,090       10,693,728  

DBGS Mortgage Trust

     

Series 2018-5BP, Class B, (1 mo. LIBOR US + 0.83%), 1.02%, 06/15/33(a)(b)

      2,890       2,755,218  

Series 2019-1735, Class F,
4.33%, 04/10/37(b)(d)

      1,144       821,283  

Del Amo Fashion Center Trust, Series 2017-AMO, Class D,
3.76%, 06/05/35(b)(d)

      962       686,811  

Deutsche Bank JPMorgan Mortgage Trust, Series 2016-C1, Class A4, 3.28%, 05/10/49

      1,430       1,553,666  

Deutsche Bank UBS Mortgage Trust

     

Series 2017-BRBK, Class A,
3.45%, 10/10/34(b)

      2,540       2,723,760  

Series 2017-BRBK, Class D,
3.65%, 10/10/34(b)(c)(d)

      1,800       1,715,525  

Series 2017-BRBK, Class E,
3.65%, 10/10/34(b)(d)

      4,290       4,215,969  

Series 2017-BRBK, Class F,
3.65%, 10/10/34(b)(d)

      1,740       1,677,055  

Eleven Madison Trust Mortgage Trust,

     

Series 2015-11MD, Class A,
3.67%, 09/10/35(b)(d)

      1,190       1,287,576  

Exantas Capital Corp. Ltd., Series 2019-RSO7, Class AS, (1 mo. LIBOR US + 1.50%), 1.69%, 04/15/36(a)(b)

      3,495       3,375,856  

FREMF Mortgage Trust

     

Series 2017-K64, Class B,
4.12%, 05/25/50(b)(c)(d)

      766       836,293  

Series 2017-KGX1, Class BFX,
3.71%, 10/25/27(b)(d)

      1,190       1,215,763  

Series 2018-K74, Class B,
4.23%, 02/25/51(b)(d)

      120       132,224  

Series 2018-K80, Class B,
4.37%, 08/25/50(b)(d)

      1,510       1,666,459  

Series 2019-K103, Class B,
3.57%, 12/25/51(b)(d)

      996       1,061,116  

FRESB Mortgage Trust

     

Series 2018-SB52, Class A10F,
3.48%, 06/25/28(d)

      2,362       2,526,769  

Series 2018-SB53, Class A10F,
3.66%, 06/25/28(d)

      1,391       1,532,007  

GPMT Ltd., Series 2018-FL1, Class A, (1 mo. LIBOR US + 0.90%), 1.09%, 11/21/35(a)(b)

      781       768,757  

GRACE Mortgage Trust, Series 2014-GRCE, Class F, 3.71%, 06/10/28(b)(d)

      1,662       1,601,842  

GS Mortgage Securities Corp. II

     

Series 2005-ROCK, Class A,
5.37%, 05/03/32(b)

      2,750       3,125,245  

Series 2012-TMSQ, Class D,
3.57%, 12/10/30(b)(d)

      1,210       1,042,540  

GS Mortgage Securities Corp. Trust

     

Series 2017-500K, Class D, (1 mo. LIBOR US + 1.30%), 1.55%, 07/15/32(a)(b)

      230       224,818  

Series 2017-500K, Class E, (1 mo. LIBOR US + 1.50%), 1.75%, 07/15/32(a)(b)

      480       466,180  
 

 

 

  43


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  
Commercial Mortgage-Backed Securities (continued)  

GS Mortgage Securities Corp. Trust

     

Series 2017-500K, Class F, (1 mo. LIBOR US + 1.80%),
2.15%, 07/15/32(a)(b)

    USD       549     $ 531,131  

Series 2017-500K, Class G, (1 mo. LIBOR US + 2.50%),
2.85%, 07/15/32(a)(b)

      170       161,678  

Series 2017-GPTX, Class A, 2.86%, 05/10/34(b)

      2,290       2,255,287  

Series 2019-BOCA, Class A, (1 mo. LIBOR US + 1.20%),
1.39%, 06/15/38(a)(b)

      1,431       1,366,510  

Series 2019-SOHO, Class A, (1 mo. LIBOR US + 0.90%),
1.09%, 06/15/36(a)(b)

      3,715       3,622,358  

Series 2019-SOHO, Class E, (1 mo. LIBOR US + 1.87%),
2.06%, 06/15/36(a)(b)

      1,723       1,611,174  

GS Mortgage Securities Trust

     

Series 2012-GCJ9, Class C,
4.45%, 11/10/45(b)(d)

      1,207       1,200,935  

Series 2014-GC20, Class B,
4.53%, 04/10/47(d)

      140       144,917  

Series 2014-GC24, Class A5,
3.93%, 09/10/47

      882       960,390  

Series 2015-590M, Class E,
3.93%, 10/10/35(b)(d)

      1,790       1,742,745  

Series 2015-GC28, Class B,
3.98%, 02/10/48

      680       692,357  

Series 2015-GC32, Class C,
4.57%, 07/10/48(d)

      560       510,834  

Series 2015-GS1, Class A3,
3.73%, 11/10/48

      670       740,928  

Series 2016-RENT, Class C,
4.20%, 02/10/29(b)(d)

      1,070       1,060,416  

Series 2017-GS7, Class D,
3.00%, 08/10/50(b)

      530       383,847  

Series 2017-GS7, Class E,
3.00%, 08/10/50(b)

      180       123,166  

Series 2019-GSA1, Class C,
3.93%, 11/10/52(d)

      520       463,274  

GSCG Trust, Series 2019-600C, Class F,
4.12%, 09/06/34(b)(d)

      1,950       1,763,542  

HMH Trust, Series 2017-NSS, Class A,
3.06%, 07/05/31(b)

      3,390       3,256,265  

Hudson Yards Mortgage Trust

     

Series 2016-10HY, Class A,
2.84%, 08/10/38(b)

      2,640       2,804,942  

Series 2019-30HY, Class E,
3.56%, 07/10/39(b)(d)

      2,178       2,052,901  

Series 2019-55HY, Class F,
3.04%, 12/10/41(b)(d)

      4,179       3,659,141  

IMT Trust

     

Series 2017-APTS, Class AFX,
3.48%, 06/15/34(b)

      1,540       1,630,001  

Series 2017-APTS, Class DFX,
3.61%, 06/15/34(b)(d)

      1,600       1,478,300  

Series 2017-APTS, Class EFX,
3.61%, 06/15/34(b)(d)

      810       709,359  

JPMBB Commercial Mortgage Securities Trust

     

Series 2014-C21, Class A5,
3.78%, 08/15/47

      1,420       1,539,622  

Series 2014-C22, Class A4,
3.80%, 09/15/47

      563       611,910  

Series 2014-C26, Class A4,
3.49%, 01/15/48

      1,247       1,348,370  

Series 2015-C33, Class D1,
4.27%, 12/15/48(b)(d)

      1,873       1,406,777  

JPMDB Commercial Mortgage Securities Trust,
Series 2018-C8, Class A4,
4.21%, 06/15/51

      965       1,130,685  
Security          Par
(000)
    Value  
Commercial Mortgage-Backed Securities (continued)  

JPMorgan Chase Commercial Mortgage Securities Trust

     

Series 2012-CBX, Class A4FL, (1 mo. LIBOR US + 1.30%),
1.49%, 06/15/45(a)(b)

    USD       405     $ 404,616  

Series 2014-C20, Class A5,
3.81%, 07/15/47

      1,990       2,148,579  

Series 2015-JP1, Class A5,
3.91%, 01/15/49

      339       378,130  

Series 2015-JP1, Class C,
4.89%, 01/15/49(d)

      710       652,416  

Series 2015-UES, Class C,
3.74%, 09/05/32(b)(d)

      2,463       2,444,256  

Series 2015-UES, Class E,
3.74%, 09/05/32(b)(d)

      2,908       2,863,716  

Series 2016-NINE, Class A,
2.95%, 09/06/38(b)(d)

      647       680,558  

Series 2017-FL10, Class E, (1 mo. LIBOR US + 3.90%),
4.09%, 06/15/32(a)(b)

      560       516,541  

Series 2017-JP5, Class D,
4.78%, 03/15/50(b)(c)(d)

      1,650       1,143,285  

Series 2017-JP6, Class A5,
3.49%, 07/15/50

      1,180       1,313,626  

Series 2017-JP7, Class B,
4.05%, 09/15/50

      320       323,371  

Series 2018-AON, Class A,
4.13%, 07/05/31(b)

      2,825       2,992,990  

Series 2018-AON, Class D,
4.77%, 07/05/31(b)(d)

      1,518       1,551,032  

Series 2019-BKWD, Class E, (1 mo. LIBOR US + 2.60%),
2.79%, 09/15/29(a)(b)

      4,580       3,985,571  

Series 2019-COR5, Class A3,
3.12%, 06/13/52

      1,700       1,864,689  

Series 2019-COR5, Class C,
3.75%, 06/13/52

      988       790,953  

Series 2019-MFP, Class E, (1 mo. LIBOR US + 2.16%),
2.35%, 07/15/36(a)(b)

      2,460       2,250,221  

Series 2019-MFP, Class F, (1 mo. LIBOR US + 3.00%),
3.19%, 07/15/36(a)(b)

      891       795,528  

Series 2019-OSB, Class E,
3.91%, 06/05/39(b)(d)

      1,384       1,075,884  

Series 2020-MKST, Class E, (1 mo. LIBOR US + 2.25%),
2.44%, 12/15/36(a)(b)

      2,823       2,499,474  

KNDL Mortgage Trust

     

Series 2019-KNSQ, Class E, (1 mo. LIBOR US + 1.80%),
1.99%, 05/15/36(a)(b)

      11,283       10,848,127  

Series 2019-KNSQ, Class F, (1 mo. LIBOR US + 2.00%),
2.19%, 05/15/36(a)(b)

      2,550       2,364,539  

Ladder Capital Commercial Mortgage Trust, Series 2014-909, Class A,
3.39%, 05/15/31(b)

      2,030       2,035,412  

Lehman Brothers Small Balance Commercial Mortgage Trust

     

Series 2006-2A, Class M2, (1 mo. LIBOR US + 0.39%),
0.56%, 09/25/36(a)(b)

      507       484,550  

Series 2007-1A, Class 1A, (1 mo. LIBOR US + 0.25%),
0.43%, 03/25/37(a)(b)

      809       756,680  

LSTAR Commercial Mortgage Trust, Series 2015-3, Class AS, 3.36%, 04/20/48(b)(d)

      1,121       1,130,043  

MAD Mortgage Trust

     

Series 2017-330M, Class D,
4.11%, 08/15/34(b)(d)

      1,085       1,086,319  

Series 2017-330M, Class E,
4.17%, 08/15/34(b)(d)

      1,846       1,818,021  

MFT Trust
Series 2020-ABC, Class C, 3.48%, 02/06/30(b)(d)

      6,719       6,317,245  
 

 

 

44  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  
Commercial Mortgage-Backed Securities (continued)  

MFT Trust
Series 2020-ABC, Class D,
3.48%, 02/06/30(b)(d)

    USD       4,800     $   4,253,255  

Morgan Stanley Bank of America Merrill Lynch Trust

     

Series 2014-C16, Class A5,
3.89%, 06/15/47

      3,880       4,178,301  

Series 2015-C23, Class A4,
3.72%, 07/15/50

      1,016       1,110,683  

Series 2015-C23, Class D,
4.29%, 07/15/50(b)(d)

      210       160,195  

Series 2015-C24, Class A4,
3.73%, 05/15/48

      840       922,232  

Series 2015-C25, Class C,
4.68%, 10/15/48(d)

      430       392,920  

Series 2015-C26, Class A5,
3.53%, 10/15/48

      1,144       1,250,223  

Series 2015-C26, Class D,
3.06%, 10/15/48(b)(c)

      372       276,322  

Series 2016-C31, Class A5,
3.10%, 11/15/49

      2,903       3,094,041  

Series 2017-C33, Class C,
4.56%, 05/15/50(d)

      840       879,168  

Morgan Stanley Capital Barclays Bank Trust,

     

Series 2016-MART, Class A,
2.20%, 09/13/31(b)

      820       816,766  

Morgan Stanley Capital I Trust

     

Series 2006-IQ11, Class C,
6.05%, 10/15/42(d)

      1,601       1,580,110  

Series 2007-T27, Class AJ,
6.22%, 06/11/42(d)

      1,783       1,786,341  

Series 2014-150E, Class D,
4.44%, 09/09/32(b)(d)

      3,015       3,005,532  

Series 2014-150E, Class F,
4.44%, 09/09/32(b)(d)

      508       457,645  

Series 2014-CPT, Class E,
3.56%, 07/13/29(b)(d)

      250       255,048  

Series 2014-CPT, Class F,
3.56%, 07/13/29(b)(d)

      2,059       2,100,575  

Series 2014-CPT, Class G,
3.56%, 07/13/29(b)(d)

      1,290       1,316,048  

Series 2015-MS1, Class A4,
3.78%, 05/15/48(d)

      420       463,168  

Series 2015-MS1, Class C,
4.17%, 05/15/48(d)

      1,000       896,679  

Series 2015-MS1, Class D,
4.17%, 05/15/48(b)(d)

      310       236,581  

Series 2017-CLS, Class F,
(1 mo. LIBOR US + 2.60%),
2.79%, 11/15/34(a)(b)

      6,092       5,901,775  

Series 2017-H1, Class C,
4.28%, 06/15/50(d)

      560       506,468  

Series 2017-H1, Class D,
2.55%, 06/15/50(b)

      4,190       2,719,516  

Series 2017-HR2, Class D,
2.73%, 12/15/50(c)

      430       344,387  

Series 2018-H3, Class A5,
4.18%, 07/15/51

      175       204,838  

Series 2018-H3, Class C,
5.01%, 07/15/51(d)

      420       421,270  

Series 2018-L1, Class A3,
4.14%, 10/15/51

      940       1,098,077  

Series 2018-MP, Class E,
4.42%, 07/11/40(b)(d)

      3,789       2,725,901  

Series 2018-SUN, Class F,
(1 mo. LIBOR US + 2.55%),
2.74%, 07/15/35(a)(b)

      417       364,809  

Series 2019-AGLN, Class D,
(1 mo. LIBOR US + 1.75%),
1.94%, 03/15/34(a)(b)

      3,605       3,104,307  

Series 2019-AGLN, Class F,
(1 mo. LIBOR US + 2.60%),
2.79%, 03/15/34(a)(b)

      3,840       3,022,307  

Series 2019-H6, Class A4,
3.42%, 06/15/52

      1,939       2,183,928  

Series 2019-H7, Class A4,
3.26%, 07/15/52

      2,450       2,738,010  

Series 2019-L2, Class A4,
4.07%, 03/15/52

      1,485       1,743,994  
Security          Par
(000)
    Value  
Commercial Mortgage-Backed Securities (continued)  

Morgan Stanley Capital I Trust
Series 2019-NUGS, Class E,
(1 mo. LIBOR US + 2.24%),
3.74%, 12/15/36(a)(b)

    USD       1,400     $ 1,232,757  

Series 2020-L4, Class A3,
2.70%, 02/15/53

      3,760       4,063,451  

Series 2020-L4, Class D,
2.50%, 02/15/53(b)

      4,269       2,645,634  

Morgan Stanley Capital I, Inc., Series 2018-H3, Class D, 3.00%, 07/15/51(b)

      960       630,190  

MSCG Trust, Series 2018-SELF, Class F,
(1 mo. LIBOR US + 3.05%),
3.24%, 10/15/37(a)(b)

      2,550       2,384,678  

Natixis Commercial Mortgage Securities Trust

     

Series 2018-FL1, Class A,
(1 mo. LIBOR US + 0.95%),
1.13%, 06/15/35(a)(b)

      756       717,806  

Series 2018-FL1, Class MCR1,
(1 mo. LIBOR US + 2.35%),
2.53%, 06/15/35(a)(b)

      646       601,215  

Series 2019-LVL, Class D,
4.44%, 08/15/38(b)(d)

      1,550       1,418,928  

Olympic Tower Mortgage Trust, Series 2017-OT, Class E, 4.08%, 05/10/39(b)(d)

      2,910       2,494,975  

PFP Ltd.

     

Series 2019-5, Class A,
(1 mo. LIBOR US + 0.97%),
1.17%, 04/14/36(a)(b)

      1,533       1,479,537  

Series 2019-5, Class AS,
(1 mo. LIBOR US + 1.42%),
1.62%, 04/14/36(a)(b)

      900       866,700  

Prima Capital CRE Securitization Ltd.

     

Series 2015-4A, Class C,
4.00%, 08/24/49(b)(c)

      1,590       1,627,524  

Series 2016-6A, Class C,
4.00%, 08/24/40(b)(c)

      7,170       6,453,000  

Scorpio European Loan Conduit No. 34 DAC,

     

Series 34A, Class C,
(3 mo. LIBOR GBP + 2.10%),
2.38%, 05/17/29(a)(b)

    GBP       1,185       1,367,389  

SG Commercial Mortgage Securities Trust,

     

Series 2019-PREZ, Class D,
3.59%, 09/15/39(b)(d)

    USD       2,200       2,136,538  

U.S.

     

Series 2018-USDC, Class E,
4.64%, 05/13/38(b)(d)

      1,890       1,576,944  

Series 2018-USDC, Class F,
4.64%, 05/13/38(b)(d)

      1,420       1,018,864  

UBS Commercial Mortgage Trust, Series 2017- C7, Class A4, 3.68%, 12/15/50

      880       990,233  

Velocity Commercial Capital Loan Trust

     

Series 2014-1, Class M7,
8.29%, 09/25/44(b)(d)

      2,399       2,003,041  

Series 2016-1, Class M4,
8.65%, 04/25/46(b)(d)

      370       385,605  

Series 2016-2, Class M2,
4.46%, 10/25/46(d)

      200       200,638  

Series 2016-2, Class M3,
5.50%, 10/25/46(d)

      800       800,676  

Series 2016-2, Class M4,
7.23%, 10/25/46(d)

      370       373,958  

Series 2017-1, Class M2,
4.45%, 05/25/47(b)(d)

      410       406,083  

Series 2017-1, Class M3,
5.35%, 05/25/47(b)(d)

      410       400,393  

Series 2017-2, Class M3,
4.24%, 11/25/47(b)(d)

      552       498,520  

Series 2017-2, Class M4,
5.00%, 11/25/47(b)(d)

      332       279,101  

Series 2018-1, Class M2,
4.26%, 04/25/48(b)

      324       309,758  

VNDO Mortgage Trust, Series 2013-PENN, Class D, 4.08%, 12/13/29(b)(d)

      550       540,154  

VNDO Trust, Series 2016-350P, Class D, 3.90%, 01/01/35(b)(d)

   

 

3,390

 

 

 

3,532,812

 

 

 

 

  45


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  
Commercial Mortgage-Backed Securities (continued)  

Wells Fargo Commercial Mortgage Trust

     

Series 2014-LC18, Class A5, 3.41%, 12/15/47

    USD       550     $ 573,765  

Series 2015-C27, Class C, 3.89%, 02/15/48

      902       801,214  

Series 2015-C28, Class A4, 3.54%, 05/15/48

      930       1,012,915  

Series 2015-C31, Class A4, 3.70%, 11/15/48

      590       639,804  

Series 2015-NXS1, Class A5, 3.15%, 05/15/48

      399       427,160  

Series 2015-NXS2, Class A5, 3.77%, 07/15/58(d)

      3,050       3,296,510  

Series 2015-NXS4, Class A4, 3.72%, 12/15/48

      608       672,777  

Series 2015-P2, Class A4, 3.81%, 12/15/48

      2,150       2,395,846  

Series 2015-P2, Class D, 3.24%, 12/15/48(b)

      1,784       1,265,144  

Series 2016-C32, Class A3FL,
(1 mo. LIBOR US + 1.42%),
1.61%, 01/15/59(a)

      3,390       3,393,356  

Series 2016-NXS5, Class B, 5.10%, 01/15/59(d)

      860       965,634  

Series 2017-C39, Class D, 4.50%, 09/15/50(b)(d)

      594       417,549  

Series 2017-C41, Class C, 4.66%, 11/15/50(d)

      900       852,010  

Series 2017-C41, Class D, 2.60%, 11/15/50(b)(d)

      1,772       1,135,855  

Series 2017-HSDB, Class A,
(1 mo. LIBOR US + 0.85%),
1.04%, 12/13/31(a)(b)

      1,508       1,428,474  

Series 2018-1745, Class A, 3.87%, 06/15/36(b)(d)

      1,987       2,191,655  

Series 2018-BXI, Class E,
(1 mo. LIBOR US + 2.16%),
2.34%, 12/15/36(a)(b)

      827       781,038  

Series 2018-C44, Class D, 3.00%, 05/15/51(b)

      348       216,641  

Series 2018-C45, Class C, 4.73%, 06/15/51

      530       483,356  

Series 2018-C47, Class A4,
4.44%, 09/15/61

 

    2,740       3,256,451  

Series 2019-C52, Class C, 3.56%, 08/15/52

      1,880       1,864,330  

Series 2020-SDAL, Class D,
(1 mo. LIBOR US + 2.09%),
2.28%, 02/15/37(a)(b)

      1,530       1,259,022  

Series 2020-SDAL, Class E,
(1 mo. LIBOR US + 2.74%),
2.93%, 02/15/37(a)(b)

      1,300       1,045,656  

WFRBS Commercial Mortgage Trust

     

Series 2014-C21, Class A5, 3.68%, 08/15/47

      1,515       1,635,031  

Series 2014-C24, Class B, 4.20%, 11/15/47(d)

      770       690,437  
     

 

 

 
        583,837,945  
Interest Only Collateralized Mortgage Obligations — 0.0%  

Seasoned Credit Risk Transfer Trust,

     

Series 2017-3, Class BIO, 0.00%, 07/25/56(b)(d)

      3,239       447,256  

Voyager OPTONE Delaware Trust,

     

Series 2009-1, Class SAA7, 2.17%, 02/25/38(b)(d)

      14,174       4,871,432  
     

 

 

 
        5,318,688  
Interest Only Commercial Mortgage-Backed Securities — 0.2%  

245 Park Avenue Trust, Series 2017-245P, Class XA, 0.27%, 06/05/37(b)(d)

      13,000       154,639  

Banc of America Commercial Mortgage Trust
Series 2017-BNK3, Class XB, 0.78%, 02/15/50(d)

      11,850       437,977  

Series 2017-BNK3, Class XD, 1.44%, 02/15/50(b)(d)

      5,000       350,850  
Security          Par
(000)
    Value  
Interest Only Commercial Mortgage-Backed Securities (continued)  

BANK

     

Series 2019-BN20, Class XA,
0.96%, 09/15/62(d)

    USD       11,529     $ 721,292  

Series 2019-BN20, Class XB,
0.46%, 09/15/62(d)

      39,279       1,119,318  

Barclays Commercial Mortgage Trust

     

Series 2015-SRCH, Class XA,
1.12%, 08/10/35(b)(d)

      17,710       929,775  

Series 2019-C3, Class XA,
1.51%, 05/15/52(d) 

      9,959       756,707  

BBCMS Mortgage Trust

     

Series 2020-C7, Class XA,
1.63%, 04/15/53(d) 

      8,135       917,909  

Series 2020-C7, Class XB,
0.99%, 04/15/53(d) 

      1,596       135,483  

Benchmark Mortgage Trust

     

Series 2019-B13, Class XA,
1.27%, 08/15/57(d)

      58,242       4,318,587  

Series 2019-B9, Class XA,
1.21%, 03/15/52(d)

      20,958       1,469,256  

Series 2020-B17, Class XB,
0.65%, 03/15/53(c)(d)

      7,100       296,070  

CFCRE Commercial Mortgage Trust

     

Series 2016-C3, Class XD, 1.86%, 01/10/48(b)(d)

      5,497       452,061  

Series 2016-C4, Class XB,
0.89%, 05/10/58(d)

      5,810       228,856  

Commercial Mortgage Pass-Through Certificates

     

Series 2013-CR6, Class XA, 1.16%, 03/10/46(d)

      16,508       319,720  

Series 2015-3BP, Class XA,
0.17%, 02/10/35(b)(d)

      150,000       652,500  

Series 2015-CR25, Class XA,
0.99%, 08/10/48(d)

      4,717       161,104  

Series 2018-COR3, Class XD,
1.75%, 05/10/51(b)(d)

      3,200       344,303  

CSAIL Commercial Mortgage Trust

     

Series 2017-CX10, Class XB,
0.22%, 11/15/50(d)

      12,490       181,576  

Series 2019-C16, Class XA, 1.73%, 06/15/52(d)

      41,493       4,301,119  

Series 2019-C17, Class XA, 1.51%, 09/15/52(d)

      39,642       3,629,056  

Series 2019-C17, Class XB, 0.70%, 09/15/52(d)

      19,090       803,527  

DBGS Mortgage Trust, Series 2019-1735,
Class X, 0.43%, 04/10/37(b)(d)

      21,535       542,897  

Deutsche Bank JPMorgan Mortgage Trust,

     

Series 2017-C6, Class XD, 1.00%, 06/10/50(d)

      5,780       318,478  

GS Mortgage Securities Corp. II,
Series 2005- ROCK, Class X1,
0.40%, 05/03/32(b)(d)

      21,000       269,052  

GS Mortgage Securities Trust,
Series 2019- GSA1, Class XA,
0.96%, 11/10/52(d)

      14,706       887,984  

JPMBB Commercial Mortgage Securities Trust
Series 2014-C22, Class XA, 0.99%, 09/15/47(d)

      1,952       55,560  

Series 2014-C23, Class XA, 0.78%, 09/15/47(d)

      28,853       608,188  

Series 2015-C29, Class XA, 0.84%, 05/15/48(d)

      2,074       47,993  
 

 

 

46  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  
Interest Only Commercial Mortgage-Backed Securities (continued)  

JPMDB Commercial Mortgage Securities Trust,

 

   

Series 2016-C4, Class XC,
0.75%, 12/15/49(b)(d)

    USD       4,940     $ 194,196  

JPMorgan Chase Commercial Mortgage Securities Trust

     

Series 2013-LC11, Class XB,
0.65%, 04/15/46(d)

      4,570       63,661  

Series 2016-JP3, Class XC,
0.75%, 08/15/49(b)(d)

      13,040       502,909  

LSTAR Commercial Mortgage Trust,

     

Series 2017-5, Class X,
1.15%, 03/10/50(b)(d)

      3,249       113,900  

Morgan Stanley Bank of America Merrill Lynch Trust

     

Series 2014-C19, Class XF,
1.36%, 12/15/47(b)(d)

      4,370       202,593  

Series 2015-C26, Class XD,
1.49%, 10/15/48(b)(d)

      4,490       289,964  

Morgan Stanley Capital I Trust

     

Series 2016-UBS9, Class XD,
1.76%, 03/15/49(b)(d)

      13,984       1,139,416  

Series 2017-H1, Class XD,
2.36%, 06/15/50(b)(d)

      3,293       402,438  

Series 2019-H6, Class XB,
0.87%, 06/15/52(d)

      23,510       1,250,431  

Series 2019-L2, Class XA,
1.19%, 03/15/52(d)

      8,840       622,280  

Olympic Tower Mortgage Trust,
Series 2017-OT, Class XA,
0.51%, 05/10/39(b)(d)

      36,697       906,416  

One Market Plaza Trust

     

Series 2017-1MKT, Class XCP, 0.22%, 02/10/32(b)(d)

      53,230       128,284  

Series 2017-1MKT, Class XNCP,
0.00%, 02/10/32(b)(c)(d)

      10,646       106  

UBS Commercial Mortgage Trust

     

Series 2019-C17, Class XA, 1.64%, 10/15/52(d)

      32,671       3,288,128  

Series 2019-C18, Class XA, 1.18%, 12/15/52(d)

      35,806       2,437,837  

Wells Fargo Commercial Mortgage Trust

     

Series 2015-NXS4, Class XA, 1.01%, 12/15/48(d)

      2,744       111,529  

Series 2016-BNK1, Class XD, 1.40%, 08/15/49(b)(d)

      4,420       282,836  

Series 2019-C50, Class XA, 1.59%, 05/15/52(d)

      20,745       1,886,248  
     

 

 

 
        39,235,009  
Principal Only Collateralized Mortgage Obligations — 0.0%  

Seasoned Credit Risk Transfer Trust,

     

Series 2017-3, Class B,
0.00%, 07/25/56(b)(k)

      1,578       165,644  
     

 

 

 

Total Non-Agency Mortgage-Backed Securities — 4.7%
(Cost: $920,290,351)

 

      883,857,389  
     

 

 

 

Preferred Securities

 

Capital Trusts — 0.5%

     
Banks — 0.1%                  

Bank of America Corp., (3 mo. LIBOR US + 2.93%), 5.88%(h)(j)

      8,450       8,632,045  

Chong Hing Bank Ltd., (5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 3.86%), 5.70%(h)(j)

      250       232,332  
Security          Par
(000)
    Value  
Banks (continued)                  

Emirates NBD PJSC, (6 yr. Swap Semi 30/360 US + 3.66%), 6.13%(h)(j)

    USD       1,850     $ 1,841,328  

Itau Unibanco Holding SA

     

(5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 3.86%),
6.50%(b)(h)(j)

      946       879,496  

(5 yr. U.S. Treasury Yield Curve Rate T Note Constant Maturity + 3.98%),
6.13%(b)(h)(j)

      1,607       1,502,545  

Kookmin Bank, (5 yr. U.S. Treasury Yield Curve
Rate T Note Constant Maturity + 2.64%), 4.35%(h)(j)

      1,700       1,739,844  

Lehman Brothers Holdings Capital Trust VII, 5.86%(c)(g)(j)

      1,888       0  

Nanyang Commercial Bank Ltd., (5 yr.

     

U.S. Treasury Yield Curve Rate T Note Constant Maturity + 3.21%), 5.00%(h)(j)

      200       194,813  

Shinhan Financial Group Co. Ltd., (5 yr.

     

U.S. Treasury Yield Curve Rate T Note Constant Maturity + 3.05%), 5.88%(h)(j)

      900       953,156  

Woori Bank, (5 yr. U.S. Treasury Yield Curve

     

Rate T Note Constant Maturity + 2.66%), 4.25%(h)(j)

      200       199,625  
     

 

 

 
        16,175,184  
Capital Markets — 0.3%  

Bank of New York Mellon Corp.

     

(3 mo. LIBOR US + 3.13%), 4.63%(h)(j)

      9,722       9,570,337  

(3 mo. LIBOR US + 3.42%), 3.73%(a)(j)

      4,380       4,155,306  

State Street Corp.

     

(3 mo. LIBOR US + 2.54%), 5.63%(h)(j)

      19,655       19,016,212  

(3 mo. LIBOR US + 3.60%), 5.25%(h)(j)

      4,015       3,832,518  

UBS Group AG, (5 yr. Swap Semi 30/360 US + 4.34%), 7.00%(b)(h)(j)

      15,350       15,944,813  
     

 

 

 
        52,519,186  
Commercial Services & Supplies — 0.0%                  

King Talent Management Ltd., (5 yr.

     

U.S. Treasury Yield Curve Rate T Note Constant Maturity + 3.52%), 5.60%(h)(j)

      600       510,000  
     

 

 

 
        510,000  
Insurance — 0.0%  

Heungkuk Life Insurance Co. Ltd., (5 yr.

     

U.S. Treasury Yield Curve Rate T Note Constant Maturity + 2.47%), 4.48%(h)(j)

      1,000       940,625  

KDB Life Insurance Co. Ltd., (5 yr. U.S. Treasury
Yield Curve Rate T Note Constant Maturity + 4.66%), 7.50%(h)(j)

      900       812,531  
     

 

 

 
        1,753,156  
Machinery — 0.0%  

Weichai International Hong Kong Energy Group Co. Ltd., (5 yr. U.S. Treasury Yield Curve

     

Rate T Note Constant Maturity + 6.08%), 3.75%(h)(j)

      278       276,002  
     

 

 

 
        276,002  
Media — 0.1%  

NBCUniversal Enterprise, Inc., 5.25%(b)(j)

      13,680       13,714,200  
     

 

 

 
        13,714,200  
 

 

 

  47


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  
Real Estate Management & Development — 0.0%  

Agile Group Holdings Ltd., (5 yr. U.S. Treasury

     

Yield Curve Rate T Note Constant Maturity + 9.22%), 6.88%(h)(j)

    USD       200     $ 194,398  

MAF Global Securities Ltd., (5 yr. Swap Semi 30/360 US + 3.48%), 5.50%(h)(j)

      1,341       1,280,655  
     

 

 

 
        1,475,053  
     

 

 

 

Total Preferred Securities — 0.5%
(Cost: $88,268,770)

 

      86,422,781  
     

 

 

 
U.S. Government Sponsored Agency Securities  
Agency Obligations — 0.0%  

Fannie Mae, 6.63%, 11/15/30

      1,450       2,247,241  
     

 

 

 
Collateralized Mortgage Obligations — 0.0%  

Fannie Mae, Series 2003-W5, Class A,
(1 mo. LIBOR US + 0.11%),
0.39%, 04/25/33(a)

      2       1,610  

Freddie Mac
Series 2015-DN1, Class B,
(1 mo. LIBOR US + 11.50%),
11.68%, 01/25/25(a)

      488       432,088  

Series 2015-HQ2, Class B,
(1 mo. LIBOR US + 7.95%),
8.13%, 05/25/25(a)

      521       396,128  

Series 2017-DNA2, Class B1,
(1 mo. LIBOR US + 5.15%),
5.34%, 10/25/29(a)

      590       609,940  

Series 2017-DNA3, Class B1,
(1 mo. LIBOR US + 4.45%),
4.64%, 03/25/30(a)

      1,860       1,842,774  

Series 2017-HRP1, Class M2,
(1 mo. LIBOR US + 2.45%),
2.64%, 12/25/42(a)

      507       491,520  
     

 

 

 
        3,774,060  
Commercial Mortgage-Backed Securities — 0.0%  

Fannie Mae,
Series 2006-M2, Class A2A, 5.27%, 10/25/32(d)

      717       809,073  

Freddie Mac
Series KL4F, Class A2AS, 3.68%, 10/25/25(d)

      1,664       1,900,880  

Series KW06, Class A2,
3.80%, 06/25/28(d)

      1,040       1,223,689  

Ginnie Mae
Series 2015-97, Class VA,
2.25%, 12/16/38

      1,020       1,055,615  

Series 2016-158, Class VA,
2.00%, 03/16/35

 

    667       677,279  
     

 

 

 
        5,666,536  
Interest Only Commercial Mortgage-Backed Securities — 0.1%  

Ginnie Mae
Series 2012-23, Class IO, 0.32%, 06/16/53(d)

      2,671       31,402  

Series 2013-191, Class IO, 0.72%, 11/16/53(d)

      2,740       73,371  

Series 2013-30, Class IO, 0.77%, 09/16/53(d)

      11,540       385,260  

Series 2013-63, Class IO, 0.80%, 09/16/51(d)

      15,498       650,580  

Series 2013-78, Class IO, 0.74%, 10/16/54(d)

      12,183       422,723  

Series 2014-40, Class AI, 1.00%, 02/16/39

      845       3,328  

Series 2014-52, Class AI, 0.83%, 08/16/41

      2,307       35,020  

Series 2015-173, Class IO, 0.82%, 09/16/55(d)

      5,522       280,732  

Series 2015-22, Class IO, 0.64%, 03/16/55(d)

      7,516       262,177  

Series 2015-37, Class IO, 0.72%, 10/16/56(d)

      2,043       94,312  

Series 2015-48, Class IO, 0.66%, 02/16/50(d)

      5,129       191,432  

Series 2016-110, Class IO, 0.99%, 05/16/58(d)

      5,626       349,144  

Series 2016-113, Class IO, 1.15%, 02/16/58(d)

      6,814       515,727  

Series 2016-125, Class IO, 0.99%, 12/16/57(d)

      7,655       473,248  

Series 2016-128, Class IO, 0.95%, 09/16/56(d)

      12,665       830,344  
Security          Par
(000)
    Value  
Interest Only Commercial Mortgage-Backed Securities (continued)  

Ginnie Mae
Series 2016-152, Class IO, 0.87%, 08/15/58(d)

    USD       7,923     $ 486,771  

Series 2016-162, Class IO, 0.97%, 09/16/58(d)

      24,671       1,720,185  

Series 2016-165, Class IO, 0.96%, 12/16/57(d)

      6,368       402,521  

Series 2016-26, Class IO, 0.90%, 02/16/58(d)

      30,185       1,616,251  

Series 2016-36, Class IO, 0.87%, 08/16/57(d)

      3,431       195,505  

Series 2016-67, Class IO, 1.06%, 07/16/57(d)

      3,433       209,726  

Series 2016-92, Class IO, 0.90%, 04/16/58(d)

      6,680       379,510  

Series 2016-96, Class IO, 0.98%, 12/16/57(d)

      15,900       909,651  

Series 2018-85, Class IO, 0.48%, 07/16/60(d)

      10,631       562,566  
     

 

 

 
        11,081,486  
Mortgage-Backed Securities — 53.1%  

Fannie Mae Mortgage-Backed Securities

     

2.00%, 10/01/31 - 03/01/32

      15,185       15,788,547  

2.50%, 09/01/27 - 02/01/33

      76,247       80,860,264  

3.00%, 04/01/28 - 05/01/50

      351,382       378,249,931  

3.50%, 08/01/28 - 06/01/50

      337,916       367,245,705  

4.00%, 08/01/31 - 03/01/50

      193,593       213,590,871  

4.50%, 02/01/25 - 05/01/49

      411,571       457,117,072  

5.00%, 11/01/32 - 06/01/45

      23,919       27,317,238  

5.50%, 12/01/32 - 04/01/41

      20,083       22,960,071  

6.00%, 02/01/34 - 06/01/41

      11,799       13,674,448  

6.50%, 05/01/40

      2,372       2,733,005  

Freddie Mac Mortgage-Backed Securities

     

2.50%, 04/01/27 - 04/01/31

      19,141       20,322,872  

3.00%, 09/01/27 - 12/01/46

      55,973       60,387,475  

3.50%, 09/01/30 - 05/01/50

      169,959       184,844,701  

4.00%, 08/01/40 - 02/01/47

      41,788       45,474,559  

4.50%, 02/01/39 - 04/01/49

      143,347       158,723,947  

5.00%, 07/01/35 - 11/01/41

      9,023       10,313,597  

5.50%, 02/01/35 - 06/01/41

      2,773       3,177,125  

Ginnie Mae Mortgage-Backed Securities

     

2.50%, 07/15/50(r)

      75,481       79,455,546  

3.00%, 12/20/44 - 07/15/50(r)

      510,493       541,478,467  

3.50%, 01/15/42 - 07/15/50(r)

      683,284       724,155,116  

4.00%, 04/20/39 - 07/15/50(r)

      266,720       283,824,164  

4.50%, 12/20/39 - 07/15/50(r)

      133,349       143,319,055  

5.00%, 04/15/33 - 07/15/50(r)

      37,357       40,857,497  

5.50%, 07/15/50(r)

      5,800       6,301,254  

Uniform Mortgage-Backed Securities

     

2.00%, 07/01/35 - 07/01/50(r)

      263,188       269,890,505  

2.50%, 07/01/35 - 07/01/50(r)

      3,158,170       3,290,817,490  

3.00%, 07/01/35 - 07/01/50(r)

      1,067,337       1,123,258,954  

3.50%, 07/01/35 - 07/01/50(r)

      244,769       257,407,335  

4.00%, 07/01/35 - 07/01/50(r)

      363,480       385,171,580  

4.50%, 07/01/35 - 07/01/50(r)

      641,680       689,338,190  

5.00%, 07/01/50(r)

      42,159       46,071,882  

6.00%, 07/01/50(r)

      9,938       11,062,403  
     

 

 

 
        9,955,190,866  
     

 

 

 

Total U.S. Government Sponsored Agency Securities — 53.2%
(Cost: $9,858,679,634)

 

      9,977,960,189  
     

 

 

 

U.S. Treasury Obligations

     
U.S. Treasury Bonds                  

2.50%, 02/15/45

      44,884       55,365,115  

2.75%, 11/15/47

      45,400       59,399,516  

3.00%, 02/15/48

      44,884       61,443,741  
 

 

 

48  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

(Percentages shown are based on Net Assets)

 

Security          Par
(000)
    Value  
U.S. Treasury Obligations (continued)  

U.S. Treasury Inflation Indexed Notes

     

0.50%, 04/15/24

    USD       82,053     $ 86,236,253  

0.13%, 10/15/24 - 04/15/25

      353,891       370,678,344  

0.25%, 01/15/25

      23,313       24,526,424  

U.S. Treasury Notes

     

1.75%, 07/15/22 - 11/15/29

      78,195       81,786,048  

0.50%, 03/15/23 - 05/31/27

      253,938       255,742,041  

0.25%, 04/15/23

      63,216       63,349,347  

2.25%, 11/15/24

      107,814       117,209,822  

0.38%, 04/30/25

      107,814       108,302,532  

0.63%, 03/31/27

      41,454       41,873,398  

1.63%, 08/15/29

      14,979       16,344,078  

1.50%, 02/15/30

      14,979       16,192,533  
     

 

 

 

Total U.S. Treasury
Obligations — 7.2%
(Cost: $1,334,198,675)

 

      1,358,449,192  
     

 

 

 
            Shares         
Warrants  
Oil, Gas & Consumable Fuels — 0.0%  

SM Energy Co. (Issued/Exercisable 07/14/20, 1 Share for 1 Warrant, Expires 06/30/23, Strike Price USD 0.00)(f)

      51,102       191,121  
     

 

 

 
Real Estate Management & Development — 0.0%  

Target Hospitality Corp. (Issued/Exercisable 03/05/18, 1 Share for 1 Warrant, Expires 03/15/24, Strike Price USD 11.50)(f)

      8,280       828  
     

 

 

 

Total Warrants — 0.0%
(Cost: $11,817)

 

      191,949  
     

 

 

 

Total Long-Term
Investments — 125.7%
(Cost: $23,205,962,434)

 

      23,576,431,526  
     

 

 

 
Short-Term Securities  
Money Market Funds — 12.4%  

BlackRock Liquidity Funds, T-Fund, Institutional Class, 0.11%(p)(s)

      2,318,044,441       2,318,044,441  
     

 

 

 

Total Short-Term
Securities — 12.4%
(Cost: $2,318,044,441)

 

      2,318,044,441  
     

 

 

 

Options Purchased — 0.1%
(Cost: $28,018,722)

 

      23,691,879  
     

 

 

 
Total Investments Before Options Written and TBA Sale  
Commitments — 138.2%  

(Cost: $25,552,025,597)

        25,918,167,846  
     

 

 

 
            Par
(000)
        
TBA Sale Commitments  
Mortgage-Backed Securities — (20.0)%  

Ginnie Mae Mortgage-Backed Securities
3.00%, 07/15/50(r)

    USD       (12,272     (13,002,088
Security          Par
(000)
    Value  
Mortgage-Backed Securities (continued)  

Ginnie Mae Mortgage-Backed Securities
3.50%, 07/15/50(r)

    USD       (273,367   $ (288,455,357

4.00%, 07/15/50(r)

      (1,109     (1,175,735

4.50%, 07/15/50

      (2,734     (2,920,040

Uniform Mortgage-Backed Securities
2.00%, 07/01/35 - 07/01/50(r)

      (131,594     (135,067,971

2.50%, 07/01/35 - 07/01/50(r)

      (1,933,978     (2,016,087,655

3.00%, 07/01/50(r)

      (428,683     (451,490,273

3.50%, 07/01/35 - 07/01/50(r)

      (788,951     (829,705,371

4.00%, 07/01/35 - 07/01/50(r)

      (7,634     (8,088,229

5.50%, 07/01/50(r)

      (1,113     (1,224,667
     

 

 

 

Total TBA Sale
Commitments — (20.0)%
(Proceeds: $3,735,631,731)

 

      (3,747,217,386
     

 

 

 

Options Written — (0.1)%
(Premiums Received: $15,735,040)

 

      (14,285,903
     

 

 

 

Total Investments Net of Options Written and TBA Sale
Commitments — 118.1%
(Cost: $21,800,658,826)

 

      22,156,664,557  

Liabilities in Excess of Other
Assets — (18.1)%

 

      (3,401,654,473
     

 

 

 

Net Assets — 100.0%

      $ 18,755,010,084  
     

 

 

 

 

(a) 

Variable rate security. Rate shown is the rate in effect as of period end.

(b)

Security exempt from registration pursuant to Rule 144A under the Securities Act of 1933, as amended. These securities may be resold in transactions exempt from registration to qualified institutional investors.

(c)

Security is valued using significant unobservable inputs and is classified as Level 3 in the fair value hierarchy.

(d)

Variable or floating rate security, which interest rate adjusts periodically based on changes in current interest rates and prepayments on the underlying pool of assets. Rate shown is the rate in effect as of period end.

(e)

Step-up bond that pays an initial coupon rate for the first period and then a higher coupon rate for the following periods. Rate as of period end.

(f)

Non-income producing security.

(g)

Issuer filed for bankruptcy and/or is in default.

(h)

Variable rate security. Security may be issued at a fixed coupon rate, which converts to a variable rate at a specified date. Rate shown is the rate in effect as of period end.

(i)

Convertible security.

(j)

Perpetual security with no stated maturity date.

(k) 

Zero-coupon bond.

(l) 

Payment-in-kind security which may pay interest/dividends in additional par/shares and/or in cash. Rates shown are the current rate and possible payment rates.

(m)

Issuer is a U.S. branch of a foreign domiciled bank.

(n)

Fixed rate.

(o)

Represents an unsettled loan commitment at period end. Certain details associated with this purchase are not known prior to the settlement date, including coupon rate.

(p)

Affiliate of the Master Portfolio.

(q)

When-issued security.

(r)

Represents or includes a TBA transaction. (s) Annualized 7-day yield as of period end.

 

 

 

  49


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Affiliates

Investments in issuers considered to be an affiliate/affiliates of the Fund during the period ended June 30, 2020 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

 

Affiliated Issuer    Par/Shares
Held at
09/30/19
     Par/Shares
Purchased
     Par/Shares
Sold
     Par/Shares
Held at
06/30/20
     Value at
06/30/20
     Income      Net Realized
Gain (Loss)(a)
     Change in
Unrealized
Appreciation
(Depreciation)
 

BlackRock Capital Finance LP,
Series 1997-R2, Class  AP

     3,374                      3,374      $ 3,145      $      $      $ 88  

BlackRock Liquidity Funds, T-Fund,
Institutional Class

     205,577,418        2,112,467,023 (b)              2,318,044,441        2,318,044,441        8,340,210                

iShares China Large-Cap ETF(c) 

            248,821        (248,821                           (137,505       

iShares iBoxx $ Investment Grade Corporate Bond ETF

            1,400,660               1,400,660        188,388,770                      1,792,845  

iShares iBoxx High Yield Corporate Bond ETF

            3,616,252        (1,553,714      2,062,538        168,344,352               (432,273      1,269,513  

iShares MSCI Emerging Markets ETF(c)

     138,000               (138,000                           245,218        128,478  

iShares PHLX Semiconductor ETF(c)

            33,746        (33,746                           647,664         

SL Liquidity Series, LLC, Money Market
Series(c)

     1,616,527               (1,616,527 )(b)                     3,842 (d)        252         
              

 

 

    

 

 

    

 

 

    

 

 

 
               $ 2,674,780,708      $ 8,344,052      $ 323,356      $ 3,190,924  
              

 

 

    

 

 

    

 

 

    

 

 

 

 

(a) 

Includes net capital gain distributions, if applicable.

(b) 

Represents net shares purchased (sold).

(c) 

As of period end, the entity is no longer held by the Master Portfolio.

(d) 

All or a portion represents securities lending income earned from the reinvestment of cash collateral from loaned securities, net of fees and collateral investment expenses, and other payments to and from borrowers of securities.

 

Currency Abbreviation
AUD    Australian Dollar
BRL    Brazilian Real
CAD    Canadian Dollar
CLP    Chilean Peso
CNY    Chinese Yuan
COP    Colombian Peso
EUR    Euro
GBP    British Pound
HKD    Hong Kong Dollar
IDR    Indonesian Rupiah
JPY    Japanese Yen
KRW    South Korean Won
KZT    Kazakhstani Tenge
MXN    Mexican Peso
PEN    Peruvian Sol
RUB    Russian Ruble
TRY    Turkish Lira
TWD    Taiwan New Dollar
USD    United States Dollar
ZAR    South African Rand
  
Portfolio Abbreviation
ABS    Asset-Backed Security
AGM    Assured Guaranty Municipal Corp.
AKA    Also Known As
AMBAC    AMBAC Assurance Corp.

 

 

50  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

AMT    Alternative Minimum Tax
BZDIOVER    Overnight Brazil CETIP - Interbank Rate
CDO    Collateralized Debt Obligation
CLO    Collateralized Loan Obligation
CORRA    Canadian OvernightRepo Rate Average
DAC    Designated Activity Co.
ETF    Exchange-Traded Fund
EURIBOR    Euro Interbank Offered Rate
FKA    Formally Known As
GMTN    Global Medium-Term Note
GNMA    Government National Mortgage Association
GO    General Obligation Bonds
HDA    Housing Development Authority
HFA    Housing Finance Agency
IO    Interest Only
LIBOR    London Interbank Offered Rate
LP    Limited Partnership
MTN    Medium-Term Note
MXIBTIIE    Mexico Interbank TIIE 28-Day
NPFGC    National Public Finance Guarantee Corp.
OTC    Over-the-Counter
PIK    Payment-in-Kind
RB    Revenue Bonds
REMIC    Real Estate Mortgage Investment Conduit
S&P    Standard & Poor’s
SCSDE    South Carolina State Department of Education
SONIA    Sterling Overnight Index Average
SPDR    Standard & Poor’s Depository Receipt
TA    Tax Allocation
TBA    To-be-Announced
  
Derivative Financial Instruments Outstanding as of Period End

Futures Contracts

 

Description    Number of
Contracts
       Expiration
Date
       Notional
Amount
(000)
       Value/
Unrealized
Appreciation
(Depreciation)
 

Long Contracts

                 

Euro-BTP Italian Government Bond

     1,388          09/08/20        $ 224,368        $ 3,639,217  

U.S. Treasury Bonds (30 Year)

     1,859          09/21/20          331,948          2,969,041  

U.S. Ultra Treasury Bonds

     5,055          09/21/20          1,102,780          10,142,343  

U.S. Treasury Notes (2 Year)

     5,337          09/30/20          1,178,560          335,021  

U.S. Treasury Notes (5 Year)

     5,600          09/30/20          704,156          980,701  

Euro Dollar

     462          03/15/21          115,269          70,472  

Euro Dollar

     462          06/14/21          115,292          89,722  

Euro Dollar

     462          09/13/21          115,298          109,515  

Euro Dollar

     462          12/13/21          115,269          114,747  
                 

 

 

 
                    18,450,779  
                 

 

 

 

Short Contracts

                 

CBOE Volatility Index

     18          08/19/20          573          7,454  

Euro-Bund

     964          09/08/20          191,180          (2,286,977

 

 

  51


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Futures Contracts (continued)

 

Description    Number of
Contracts
       Expiration
Date
       Notional
Amount
(000)
       Value/
Unrealized
Appreciation
(Depreciation)
 

Euro-Buxl

     432          09/08/20        $ 106,757        $ (3,134,543

Euro-Schatz

     3          09/08/20          378          (492

E-Mini S&P 500 Index

     534          09/18/20          82,508          (507,410

Canadian Government Bonds (10 Year)

     1,048          09/21/20          118,741          57,253  

U.S. Treasury Notes (10 Year)

     3,140          09/21/20          437,000          (879,200

U.S. Ultra Treasury Notes (10 Year)

     635          09/21/20          100,003          (140,142

10 Year U.K. Gilt

     652          09/28/20          111,198          (590,878

Euro Dollar

     462          03/13/23          115,177          (206,728

Euro Dollar

     462          06/19/23          115,130          (212,503

Euro Dollar

     462          09/18/23          115,084          (218,278

Euro Dollar

     462          12/18/23          115,021          (218,424
                 

 

 

 
                    (8,330,868
                 

 

 

 
                  $ 10,119,911  
                 

 

 

 

Forward Foreign Currency Exchange Contracts

 

Currency Purchased        Currency Sold        Counterparty      Settlement
Date
       Unrealized
Appreciation
(Depreciation)
 
KRW     5,474,336,400        USD     4,428,000        Deutsche Bank AG        07/02/20        $ 123,162  
USD     6,015,000        BRL     31,967,319        Bank of America N.A.        07/02/20          137,212  
USD     3,528,000        BRL     18,907,827        BNP Paribas S.A.        07/02/20          51,443  
USD     587,000        BRL     3,129,532        Citibank N.A.        07/02/20          11,577  
USD     2,194,400        BRL     11,268,463        Citibank N.A.        07/02/20          122,483  
USD     4,428,000        BRL     21,756,978        Citibank N.A.        07/02/20          427,573  
USD     4,428,000        BRL     21,756,978        Citibank N.A.        07/02/20          427,573  
USD     4,526,000        BRL     22,539,480        Deutsche Bank AG        07/02/20          381,696  
USD     2,255,000        BRL     11,980,296        JPMorgan Chase Bank N.A.        07/02/20          52,199  
AUD     1,344,000        USD     923,937        Standard Chartered Bank        07/06/20          3,589  
EUR     122,926,000        USD     137,800,046        Goldman Sachs International        07/06/20          325,263  
USD     659,437        AUD     939,200        Citibank N.A.        07/06/20          11,273  
USD     8,268,013        EUR     7,329,000        Bank of America N.A.        07/06/20          32,812  
USD     5,902,779        EUR     5,177,000        Deutsche Bank AG        07/06/20          85,664  
USD     1,559,273        EUR     1,377,000        UBS AG        07/06/20          12,013  
USD     969,351        JPY     103,594,000        Citibank N.A.        07/06/20          9,852  
USD     986,801        JPY     105,855,000        Goldman Sachs International        07/06/20          6,360  
USD     13,963,948        MXN     316,754,000        Citibank N.A.        07/06/20          194,215  
AUD     7,513,000        USD     5,164,827        Deutsche Bank AG        07/15/20          20,363  
USD     3,543,000        CLP     2,813,142,000        JPMorgan Chase Bank N.A.        07/15/20          117,187  
USD     2,799,000        COP     10,452,865,500        JPMorgan Chase Bank N.A.        07/15/20          21,094  
USD     2,799,000        COP     10,452,865,500        JPMorgan Chase Bank N.A.        07/15/20          21,094  
USD     3,734,000        MXN     85,574,912        HSBC Bank PLC        07/15/20          18,578  
USD     6,415,000        RUB     448,427,745        BNP Paribas S.A.        07/15/20          125,314  
USD     3,210,000        RUB     224,388,630        BNP Paribas S.A.        07/15/20          62,706  
USD     333,000        RUB     23,263,380        Citibank N.A.        07/15/20          6,706  
USD     670,000        RUB     46,806,200        Citibank N.A.        07/15/20          13,492  
USD     3,543,000        ZAR     61,370,074        Bank of America N.A.        07/15/20          12,374  
USD     5,314,000        ZAR     92,046,451        Bank of America N.A.        07/15/20          18,560  
USD     4,075,000        ZAR     70,171,500        Bank of America N.A.        07/15/20          38,028  
USD     29,308,916        ZAR     503,887,677        JPMorgan Chase Bank N.A.        07/15/20          320,215  
USD     24,052,000        ZAR     413,509,200        JPMorgan Chase Bank N.A.        07/15/20          262,781  
USD     7,438,000        ZAR     127,876,327        JPMorgan Chase Bank N.A.        07/15/20          81,264  
CLP     3,032,458,000        USD     3,688,000        Bank of America N.A.        07/20/20          5,252  
USD     4,253,452        COP     15,899,405,000        UBS AG        07/27/20          32,459  
USD     2,754,000        BRL     14,953,118        Citibank N.A.        08/04/20          9,148  
USD     1,756,000        BRL     9,534,378        Citibank N.A.        08/04/20          5,833  
USD     1,952,703        JPY     209,449,000        Morgan Stanley & Co. International PLC        08/05/20          12,024  
USD     1,880,000        COP     6,802,404,000        Citibank N.A.        08/10/20          76,248  
USD     1,880,000        COP     6,802,404,000        Citibank N.A.        08/10/20          76,248  

 

 

52  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Forward Foreign Currency Exchange Contracts (continued)

 

Currency Purchased        Currency Sold        Counterparty      Settlement
Date
       Unrealized
Appreciation
(Depreciation)
 
USD     1,880,000        COP     6,799,132,800        Citibank N.A.        08/10/20        $ 77,116  
USD     1,880,000        COP     6,799,132,800        Citibank N.A.        08/10/20          77,116  
USD     7,277,124        COP     26,687,760,219        Barclays Bank PLC        09/16/20          221,106  
USD     3,556,707        EUR     3,139,000        NatWest Markets PLC        09/16/20          23,985  
USD     5,667,252        EUR     5,001,678        NatWest Markets PLC        09/16/20          38,217  
USD     12,529,807        IDR     179,176,235,003        Barclays Bank PLC        09/16/20          94,382  
USD     1,819,326        RUB     129,405,000        Barclays Bank PLC        09/16/20          17,162  
USD     1,882,768        RUB     133,450,590        Credit Suisse International        09/16/20          24,263  
USD     2,810,495        RUB     199,890,830        HSBC Bank PLC        09/16/20          26,708  
USD     39,239,816        RUB     2,719,947,106        JPMorgan Chase Bank N.A.        09/16/20          1,360,376  
USD     4,913,100        RUB     349,237,907        JPMorgan Chase Bank N.A.        09/16/20          49,426  
USD     3,950,057        RUB     279,897,084        JPMorgan Chase Bank N.A.        09/16/20          52,060  
USD     986,679        RUB     69,974,269        JPMorgan Chase Bank N.A.        09/16/20          12,180  
USD     1,184,104        RUB     83,951,828        JPMorgan Chase Bank N.A.        09/16/20          14,946  
USD     1,966,914        RUB     139,695,179        Morgan Stanley & Co. International PLC        09/16/20          21,444  
USD     4,790,400        MXN     105,018,972        Barclays Bank PLC        09/23/20          271,848  
                       

 

 

 
                          6,155,262  
                       

 

 

 
BRL     11,760,582        USD     2,194,400        BNP Paribas S.A.        07/02/20        $ (31,997
BRL     28,483,571        USD     5,314,000        Citibank N.A.        07/02/20          (76,764
BRL     14,934,942        USD     2,754,000        Citibank N.A.        07/02/20          (7,932
BRL     9,522,788        USD     1,756,000        Citibank N.A.        07/02/20          (5,058
BRL     19,066,300        USD     3,543,000        Deutsche Bank AG        07/02/20          (37,305
BRL     17,832,451        USD     3,543,000        Deutsche Bank AG        07/02/20          (264,171
BRL     14,096,926        USD     2,657,000        JPMorgan Chase Bank N.A.        07/02/20          (65,017
BRL     14,096,926        USD     2,657,000        JPMorgan Chase Bank N.A.        07/02/20          (65,017
BRL     18,909,877        USD     3,543,000        JPMorgan Chase Bank N.A.        07/02/20          (66,066
USD     4,428,000        KRW     5,385,333,600        JPMorgan Chase Bank N.A.        07/02/20          (49,169
JPY     209,449,000        USD     1,951,967        Morgan Stanley & Co. International PLC        07/06/20          (12,027
USD     268,695        AUD     405,000        BNP Paribas S.A.        07/06/20          (10,805
USD     15,479,683        CAD     21,117,000        Citibank N.A.        07/06/20          (75,238
USD     6,150,718        EUR     5,576,000        ANZBUS33        07/06/20          (114,732
USD     836,997        EUR     746,000        Deutsche Bank AG        07/06/20          (1,243
USD     1,233,403        EUR     1,102,000        Goldman Sachs International        07/06/20          (4,855
USD     34,811,459        EUR     31,000,000        HSBC Bank PLC        07/06/20          (21,567
USD     462,124        EUR     417,000        Morgan Stanley & Co. International PLC        07/06/20          (6,436
USD     3,597,849        EUR     3,212,868        Morgan Stanley & Co. International PLC        07/06/20          (12,277
USD     250,659        EUR     225,000        State Street Bank and Trust Co.        07/06/20          (2,161
USD     6,101,167        EUR     5,461,000        State Street Bank and Trust Co.        07/06/20          (35,064
USD     10,693,913        EUR     9,641,000        TD Securities, Inc.        07/06/20          (139,158
USD     57,504,616        EUR     51,662,000        UBS AG        07/06/20          (545,184
USD     2,801,000        KRW     3,372,011,860        BNP Paribas S.A.        07/06/20          (2,397
USD     2,801,000        KRW     3,372,011,860        BNP Paribas S.A.        07/06/20          (2,397
CLP     4,081,152,000        USD     5,314,000        Citibank N.A.        07/15/20          (344,019
CLP     3,036,675,500        USD     3,734,000        Deutsche Bank AG        07/15/20          (35,971
CLP     3,036,675,500        USD     3,734,000        Deutsche Bank AG        07/15/20          (35,971
COP     6,881,600,000        USD     1,840,000        JPMorgan Chase Bank N.A.        07/15/20          (11,177
COP     6,881,600,000        USD     1,840,000        JPMorgan Chase Bank N.A.        07/15/20          (11,177
EUR     6,543,000        USD     7,376,796        JPMorgan Chase Bank N.A.        07/15/20          (23,292
EUR     6,543,000        USD     7,376,795        JPMorgan Chase Bank N.A.        07/15/20          (23,292
JPY     851,540,157        AUD     11,558,000        JPMorgan Chase Bank N.A.        07/15/20          (88,923
JPY     392,092,911        USD     3,656,000        Citibank N.A.        07/15/20          (23,971
MXN     21,087,837        USD     929,000        Barclays Bank PLC        07/15/20          (13,426
MXN     61,301,692        USD     2,760,500        Citibank N.A.        07/15/20          (98,953
MXN     107,240,298        USD     4,668,000        Citibank N.A.        07/15/20          (11,928
MXN     61,171,576        USD     2,760,500        Deutsche Bank AG        07/15/20          (104,603
MXN     124,067,824        USD     5,566,600        JPMorgan Chase Bank N.A.        07/15/20          (179,924
MXN     90,154,556        USD     4,045,000        JPMorgan Chase Bank N.A.        07/15/20          (130,743
MXN     590,941,381        USD     26,514,000        JPMorgan Chase Bank N.A.        07/15/20          (856,989
MXN     92,063,294        USD     4,135,000        Morgan Stanley & Co. International PLC        07/15/20          (137,871
MXN     197,151,262        USD     8,855,000        Morgan Stanley & Co. International PLC        07/15/20          (295,247
RUB     931,459,166        USD     13,355,000        JPMorgan Chase Bank N.A.        07/15/20          (290,274

 

 

  53


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Forward Foreign Currency Exchange Contracts (continued)

 

Currency Purchased        Currency Sold        Counterparty      Settlement
Date
       Unrealized
Appreciation
(Depreciation)
 
RUB     258,479,047        USD     3,706,000        JPMorgan Chase Bank N.A.        07/15/20        $ (80,551
RUB     1,482,523,102        USD     21,256,000        JPMorgan Chase Bank N.A.        07/15/20          (462,003
USD     3,602,635        IDR     51,950,000,000        Goldman Sachs International        07/15/20          (27,714
USD     29,697,746        IDR     433,958,310,948        JPMorgan Chase Bank N.A.        07/15/20          (627,954
USD     2,115,000        KRW     2,561,466,348        BNP Paribas S.A.        07/15/20          (14,584
USD     2,115,000        KRW     2,561,466,348        BNP Paribas S.A.        07/15/20          (14,583
USD     645,000        KRW     781,482,000        JPMorgan Chase Bank N.A.        07/15/20          (4,718
USD     645,000        KRW     781,482,000        JPMorgan Chase Bank N.A.        07/15/20          (4,718
USD     1,751,000        MXN     40,365,866        Deutsche Bank AG        07/15/20          (1,572
ZAR     62,384,832        USD     3,680,000        Citibank N.A.        07/15/20          (90,995
ZAR     62,384,832        USD     3,680,000        Citibank N.A.        07/15/20          (90,995
USD     12,753,000        TRY     88,282,643        Citibank N.A.        07/17/20          (72,435
USD     3,688,000        CLP     3,032,458,000        Citibank N.A.        07/20/20          (5,252
KZT     241,335,000        USD     620,000        Goldman Sachs International        07/24/20          (28,856
KZT     254,121,780        USD     650,760        NatWest Markets PLC        07/24/20          (28,295
USD     2,786,533        COP     10,619,477,000        JPMorgan Chase Bank N.A.        07/27/20          (32,739
USD     1,867,000        BRL     10,224,999        Citibank N.A.        08/04/20          (9,940
USD     924,020        AUD     1,344,000        Standard Chartered Bank        08/05/20          (3,659
USD     137,889,044        EUR     122,926,000        Goldman Sachs International        08/05/20          (328,698
USD     1,554,000        COP     5,891,214,000        NatWest Markets PLC        08/10/20          (8,137
USD     1,554,000        COP     5,891,214,000        NatWest Markets PLC        08/10/20          (8,137
JPY     100,000,000        USD     936,753        Morgan Stanley & Co. International PLC        09/15/20          (9,662
USD     506,927        CNH     3,634,112        Goldman Sachs International        09/15/20          (4,898
USD     4,585,030        EUR     4,078,421        Bank of America N.A.        09/15/20          (4,840
USD     3,549,915        HKD     27,550,000        Bank of America N.A.        09/15/20          (3,054
USD     3,550,432        HKD     27,553,485        Morgan Stanley & Co. International PLC        09/15/20          (2,985
USD     2,386,369        JPY     259,185,000        Goldman Sachs International        09/15/20          (16,512
USD     2,386,560        JPY     259,184,026        Morgan Stanley & Co. International PLC        09/15/20          (16,312
USD     1,301,469        TWD     38,600,260        Bank of America N.A.        09/15/20          (7,425
USD     12,401,861        CNH     88,285,000        Standard Chartered Bank        09/16/20          (31,380
USD     13,082,137        CNH     92,958,000        Standard Chartered Bank        09/16/20          (9,206
USD     1,790,749        EUR     1,591,408        UBS AG        11/27/20          (3,621
                       

 

 

 
                          (6,428,218
                       

 

 

 
                        $ (272,956
                       

 

 

 

Exchange-Traded Options Purchased

 

Description    Number of
Contracts
       Expiration
Date
       Excercise
Price
       Notional
Amount
(000)
       Value  
Call                                                   

SPDR S&P 500 ETF Trust

     3,519          07/02/20        USD     312.00        USD     108,512        $ 378,292  

U.S. Treasury Notes (10 Year)

     2,009          07/02/20        USD     139.25        USD     279,596          376,688  

SPDR S&P 500 ETF Trust

     4,447          07/06/20        USD     315.00        USD     137,128          389,112  

SPDR S&P 500 ETF Trust

     3,575          07/10/20        USD     315.00        USD     110,239          700,700  

SPDR S&P 500 ETF Trust

     5,918          07/10/20        USD     325.00        USD     182,487          189,376  

Amazon.com, Inc.

     60          07/17/20        USD     2,900.00        USD     16,553          129,300  

Communication Services Select Sector SPDR Fund

     239          07/17/20        USD     55.00        USD     1,292          16,252  

iShares Russell 2000 ETF

     3,549          07/17/20        USD     150.00        USD     50,815          461,370  

SPDR S&P 500 ETF Trust

     1,490          07/17/20        USD     320.00        USD     45,946          238,400  

SPDR S&P 500 ETF Trust

     4,440          07/17/20        USD     325.00        USD     136,912          335,220  

Technology Select Sector SPDR Fund

     209          07/17/20        USD     107.00        USD     2,184          24,976  

VanEck Vectors Semiconductor ETF

     1,480          07/17/20        USD     155.00        USD     22,614          484,700  

PowerShares QQQ Trust, Series 1 ETF

     59          07/31/20        USD     255.00        USD     1,461          23,158  

Amazon.com, Inc.

     176          08/21/20        USD     2,700.00        USD     48,555          3,180,320  

Caesars Entertainment Corp.

     2,799          09/18/20        USD     10.00        USD     3,395          631,174  

SPDR S&P 500 ETF Trust

     119          09/18/20        USD     330.00        USD     3,669          50,040  
                          

 

 

 
                             7,609,078  
                          

 

 

 

 

 

54  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Exchange-Traded Options Purchased (continued)

 

Description    Number of
Contracts
       Expiration
Date
            Excercise
Price
            Notional
Amount
(000)
       Value  
Put                                                   

SPDR S&P 500 ETF Trust

     10,677          07/02/20        USD     300.00        USD     329,236        $ 645,958  

U.S. Treasury Notes (10 Year)

     2,009          07/02/20        USD     139.25        USD     279,596          533,641  

U.S. Treasury Long-Term Bonds Futures

     393          07/24/20        USD     174.00        USD     70,175          122,813  

Industrial Select Sector SPDR Fund

     92          07/31/20        USD     64.00        USD     632          23,828  

SPDR S&P 500 ETF Trust

     89          07/31/20        USD     290.00        USD     2,744          35,867  

Avis Budget Group, Inc.

     4,174          08/21/20        USD     8.00        USD     9,554          52,175  

SPDR S&P 500 ETF Trust

     6,550          08/21/20        USD     305.00        USD     201,976          6,893,875  
                          

 

 

 
                             8,308,157  
                          

 

 

 
                           $ 15,917,235  
                          

 

 

 

OTC Barrier Options Purchased

Description    Type of Option    Counterparty      Number of
Contracts
     Expiration
Date
     Exercise
Price
   

Barrier

Price/Range

     Notional
Amount
     Value  

Call

                              

EUR Currency

   Under-and-Out      Credit Suisse International               07/23/20       USD        1.14       USD        1.17        EUR        30,812      $ 28,857  

USD Currency

   One-Touch      Bank of America N.A.               09/10/20       CLP        820.00       CLP        820.00        USD        680        317,763  

USD Currency

   One-Touch      Credit Suisse International               12/21/20       CAD        1.41       CAD        1.41        USD        736        319,747  
                              

 

 

 
                                 666,367  
                              

 

 

 

Put

                              

USD Currency

   One-Touch      JPMorgan Chase Bank N.A.               07/03/20       CNH        6.70       CNH        6.70        USD        2,040         

USD Currency

   Down-and-Out      Goldman Sachs International               07/15/20       MXN        22.25       MXN        21.30        USD        9,201        15,587  
                              

 

 

 
                                 15,587  
                              

 

 

 
                               $ 681,954  
                              

 

 

 

OTC Options Purchased

 

Description    Counterparty    Number of
Contracts
     Expiration
Date
    

Exercise
Price

     Notional
Amount
(000)
     Value  

Call

                                                                 

USD Currency

   Bank of America N.A.             07/15/20        CLP       830.00        USD       8,765      $ 80,767  

USD Currency

   Citibank N.A.             07/23/20        ZAR       18.00        USD       7,085        44,251  

USD Currency

   Citibank N.A.             07/23/20        ZAR       17.25        USD       7,085        148,387  

USD Currency

   Deutsche Bank AG             07/23/20        ZAR       19.00        USD       7,085        10,372  

EUR Currency

   Bank of America N.A.             07/30/20        USD       1.13        EUR       13,262        71,799  

USD Currency

   Bank of America N.A.             08/07/20        TRY       7.00        USD       6,174        67,350  

USD Currency

   HSBC Bank PLC             08/19/20        CNH       7.29        USD       30,279        37,719  

USD Currency

   JPMorgan Chase Bank N.A.             11/03/20        TWD       30.00        USD       13,122        41,724  
                     

 

 

 
                        502,369  
                     

 

 

 
Put                                                    

USD Currency

   Bank of America N.A.             07/02/20        BRL       5.00        USD       10,628        92  

USD Currency

   Bank of America N.A.             07/02/20        KRW       1,220.00        USD       12,399        208,539  

USD Currency

   Citibank N.A.             07/02/20        RUB       78.00        USD       34,151        3,236,544  

USD Currency

   BNP Paribas S.A.             07/03/20        CNH       6.90        USD       27,170        9  

USD Currency

   Bank of America N.A.             07/09/20        KRW       1,170.00        USD       17,714        3,738  

GBP Currency

   Deutsche Bank AG             07/10/20        USD       1.22        GBP       22,799        39,113  

AUD Currency

   Bank of America N.A.             07/15/20        USD       0.67        AUD       30,598        35,324  

AUD Currency

   JPMorgan Chase Bank N.A.             07/16/20        USD       0.68        AUD       9,177        17,533  

USD Currency

   JPMorgan Chase Bank N.A.             07/16/20        KRW       1,200.00        USD       14,722        98,743  

USD Currency

   Morgan Stanley & Co. International PLC             07/20/20        BRL       5.20        USD       7,378        69,217  

USD Currency

   BNP Paribas S.A.             07/21/20        CNH       6.85        USD       25,275        1,885  

USD Currency

   Standard Chartered Bank             07/21/20        JPY       106.00        USD       18,660        21,900  

USD Currency

   HSBC Bank PLC             07/27/20        MXN       22.60        USD       11,200        125,707  

USD Currency

   Bank of America N.A.             08/05/20        ZAR       16.90        USD       13,792        110,600  

USD Currency

   Bank of America N.A.             08/06/20        MXN       24.00        USD       6,997        349,891  

 

 

  55


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

OTC Options Purchased (continued)

 

Description    Counterparty    Number of
Contracts
     Expiration
Date
    

Exercise

Price

    

Notional
Amount

(000)

     Value  

USD Currency

   JPMorgan Chase Bank N.A.             09/10/20      TRY     6.50      USD     26,049      $ 39,255  

USD Currency

   Bank of America N.A.             10/09/20      MXN     23.80      USD     8,759        424,660  
                     

 

 

 
                        4,782,750  
                     

 

 

 
                      $ 5,285,119  
                     

 

 

 

OTC Interest Rate Swaptions Purchased

 

Description

  Paid by the Fund   Received by the Fund  

Counterparty

 

Expiration

Date

   

Exercise

Rate

   

Notional
Amount

(000)

   

Value

 
  Rate     Frequency   Rate     Frequency

Put

                                                                   

30-Year Interest Rate Swap, 08/02/50

    1.04   Semi-Annual     3-month LIBOR, 0.30%     Quarterly   Citibank N.A.     07/31/20       1.04     USD       34,815     $ 463,414  

10-Year Interest Rate Swap, 12/05/30

    1.05   Semi-Annual     3-month LIBOR, 0.30%     Quarterly   Deutsche Bank AG     12/03/20       1.05     USD       120,483       669,685  

10-Year Interest Rate Swap, 12/18/30

    1.05   Semi-Annual     3-month LIBOR, 0.30%     Quarterly   Deutsche Bank AG     12/16/20       1.05     USD       45,167       276,623  

10-Year Interest Rate Swap, 12/19/30

    1.00   Semi-Annual     3-month LIBOR, 0.30%     Quarterly   Bank of America N.A.     12/17/20       1.00     USD       55,350       397,849  
                   

 

 

 
                    $ 1,807,571  
                   

 

 

 

Exchange-Traded Options Written

 

Description    Number of
Contracts
       Expiration
Date
      

Exercise
Price

      

Notional
Amount

(000)

       Value  

Call

                          

SPDR S&P 500 ETF Trust

     176          07/17/20        USD     310.00        USD     5,427        $ (99,880

U.S. Treasury 10-Year Notes Futures

     260          07/17/20        USD     139.25        USD     36,185          (101,562

Amazon.com, Inc.

     235          08/21/20        USD     2,800.00        USD     64,832          (3,083,200
                          

 

 

 
                             (3,284,642
                          

 

 

 

Put

                          

SPDR S&P 500 ETF Trust

     2,933          07/01/20        USD     310.00        USD     90,442          (725,917

SPDR S&P 500 ETF Trust

     5,918          07/10/20        USD     290.00        USD     182,487          (648,021

iShares Russell 2000 ETF

     2,363          07/17/20        USD     125.00        USD     33,833          (134,691

SPDR S&P 500 ETF Trust

     177          07/17/20        USD     295.00        USD     5,458          (53,277

SPDR S&P 500 ETF Trust

     463          07/17/20        USD     265.00        USD     14,277          (23,845

SPDR S&P 500 ETF Trust

     1,480          07/17/20        USD     280.00        USD     45,637          (174,640

U.S. Treasury 10-Year Notes Futures

     260          07/17/20        USD     137.75        USD     36,185          (20,313

U.S. Treasury Long-Term Bonds Futures

     195          07/24/20        USD     170.00        USD     34,820          (18,281

SPDR S&P 500 ETF Trust

     60          07/31/20        USD     275.00        USD     1,850          (12,120

SPDR S&P 500 ETF Trust

     111          07/31/20        USD     265.00        USD     3,423          (13,986

SPDR S&P 500 ETF Trust

     3,253          08/21/20        USD     280.00        USD     100,310          (1,515,898

SPDR S&P 500 ETF Trust

     6,000          08/21/20        USD     285.00        USD     185,016          (3,315,000

SPDR S&P 500 ETF Trust

     60          09/18/20        USD     270.00        USD     1,850          (33,510

SPDR S&P 500 ETF Trust

     177          09/18/20        USD     280.00        USD     5,458          (130,272

SPDR S&P 500 ETF Trust

     1,490          09/18/20        USD     250.00        USD     45,946          (460,410
                          

 

 

 
                             (7,280,181
                          

 

 

 
                           $ (10,564,823
                          

 

 

 

OTC Barrier Options Written

 

Description    Type of
Security
     Counterparty      Number
of
Contracts
       Expiration
Date
       Excercise
Price
       Barrier
Price/Range
      

Notional
Amount

(000)

    Value  

Call

                                       

USD Currency

   One-Touch      Credit Suisse International                 10/21/20          CAD 1.41          CAD 1.41          USD          613     $  (215,722
                                       

 

 

 

 

 

56  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

OTC Options Written

 

Description    Counterparty    Number of
Contracts
     Expiration
Date
     Excerise Price     

Notional
Amount

(000)

     Value  
Call                                                    

USD Currency

   Bank of America N.A.             07/02/20        KRW       1,240.00        USD       12,399      $ (15)  

USD Currency

   BNP Paribas S.A.             07/02/20        BRL       5.35        USD       8,856        (175,494)  

AUD Currency

   JPMorgan Chase Bank N.A.             07/09/20        JPY       71.00        AUD       5,415        (176,000)  

USD Currency

   Bank of America N.A.             07/09/20        MXN       25.00        USD       2,628        (1,747)  

USD Currency

   Bank of America N.A.             07/15/20        CLP       855.00        USD       8,765        (28,863)  

USD Currency

   Citibank N.A.             07/23/20        ZAR       19.00        USD       7,085        (10,372)  

USD Currency

   Citibank N.A.             07/23/20        ZAR       18.00        USD       14,171        (88,508)  

USD Currency

   HSBC Bank PLC             07/27/20        MXN       24.00        USD       11,200        (94,931)  

EUR Currency

   Bank of America N.A.             07/30/20        USD       1.15        EUR       13,262        (26,555)  

USD Currency

   Bank of America N.A.             08/06/20        MXN       25.50        USD       2,624        (9,848)  

USD Currency

   HSBC Bank PLC             08/19/20        CNH       7.50        USD       30,279        (10,892)  
                     

 

 

 
                        (623,225)  
                     

 

 

 
Put                                                    

USD Currency

   Citibank N.A.             07/02/20        RUB       75.00        USD       34,151        (1,798,213)  

USD Currency

   JPMorgan Chase Bank N.A.             07/03/20        CNH       6.90        USD       27,170        (9)  

GBP Currency

   Deutsche Bank AG             07/10/20        USD       1.19        GBP       22,799        (4,388)  

AUD Currency

   Bank of America N.A.             07/15/20        USD       0.65        AUD       30,598        (7,358)  

AUD Currency

   Bank of America N.A.             07/15/20        USD       0.63        AUD       30,598        (1,835)  

USD Currency

   Bank of America N.A.             07/15/20        CLP       795.00        USD       8,765        (22,850)  

AUD Currency

   JPMorgan Chase Bank N.A.             07/16/20        USD       0.64        AUD       4,589        (486)  

AUD Currency

   JPMorgan Chase Bank N.A.             07/16/20        USD       0.66        AUD       9,177        (3,785)  

USD Currency

   JPMorgan Chase Bank N.A.             07/16/20        KRW       1,185.00        USD       22,082        (45,805)  

USD Currency

   Morgan Stanley & Co. International PLC             07/20/20        BRL       4.95        USD       11,066        (23,378)  

USD Currency

   Citibank N.A.             07/23/20        ZAR       17.00        USD       7,085        (46,024)  

USD Currency

   Bank of America N.A.             08/06/20        MXN       23.00        USD       6,997        (148,244)  

USD Currency

   Bank of America N.A.             08/07/20        TRY       6.60        USD       6,174        (6,603)  

USD Currency

   JPMorgan Chase Bank N.A.             08/07/20        TWD       29.25        USD       6,998        (42,998)  

USD Currency

   Bank of America N.A.             10/09/20        MXN       22.80        USD       14,015        (331,865)  
                     

 

 

 
                        (2,483,841)  
                     

 

 

 
                      $  (3,107,066)  
                     

 

 

 

OTC Interest Rate Swaptions Written

 

  

 

  Paid by the Fund   Received by the Fund     

 

  Expiration     Exercise    

Notional
Amount

      

 

 
Description   Rate     Frequency   Rate     Frequency   Counterparty   Date     Rate           (000)     Value  

Call

                                                                   

30-Year Interest Rate Swap, 07/22/50

    0.87%     Semi-Annual     3-month LIBOR, 0.30%     Quarterly   BNP Paribas S.A.     07/20/20       0.87     USD       15,204     $ (235,874
                   

 

 

 

Put

                   

30-Year Interest Rate Swap, 07/22/50

    3-month LIBOR, 0.30%     Quarterly     1.17%     Semi-Annual   BNP Paribas S.A.     07/20/20       1.17     USD       15,204       (41,284

30-Year Interest Rate Swap, 08/02/50

    3-month LIBOR, 0.30%     Quarterly     1.24%     Semi-Annual   Citibank N.A.     07/31/20       1.24     USD       34,815       (121,134
                   

 

 

 
                      (162,418
                   

 

 

 
                    $ (398,292
                   

 

 

 

 

 

  57


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Centrally Cleared Credit Default Swaps — Buy Protection

 

Reference Obligation/Index    Financing
Rate Paid
by the Fund
     Payment
Frequency
     Termination
Date
    

Notional

Amount

(000)

     Value      Upfront
Premium
Paid
(Received)
     Unrealized
Appreciation
(Depreciation)
 

CDX.NA.HY.33.V1

     5.00      Quarterly        12/20/24        USD        36,654      $  156,218      $  (2,931,518)      $  3,087,736  
                 

 

 

    

 

 

    

 

 

 

Centrally Cleared Credit Default Swaps — Sell Protection

 

Reference Obligation/Index    Financing
Rate Received
by the Fund
     Payment
Frequency
     Termination
Date
     Credit
Rating(a)
    

Notional

Amount

(000)(b)

     Value      Upfront
Premium
Paid
(Received)
     Unrealized
Appreciation
(Depreciation)
 

CDX.NA.HY.34.V5

     5.00      Quarterly        06/20/25        B+        USD        4,992      $ (28,196    $ (59,753    $ 31,557  

CDX.NA.IG.34.V1

     1.00      Quarterly        06/20/25        BBB+        USD        18,059        215,588        (9,894      225,482  
                    

 

 

    

 

 

    

 

 

 
                     $ 187,392      $ (69,647    $  257,039  
                    

 

 

    

 

 

    

 

 

 

 

(a)

Using the rating of the issuer or the underlying securities of the index, as applicable, provided by S&P Global Ratings.

 
(b)

The maximum potential amount the Portfolio may pay should a negative credit event take place as defined under the terms of agreement.

 

Centrally Cleared Inflation Swaps

 

Paid by the Fund

  

Received by the Fund

  

Termination

Date

    

Notional

Amount (000)

 

Value

    

Upfront
Premium
Paid

(Received)

    

Unrealized
Appreciation

(Depreciation)

 
Reference    Frequency    Rate    Frequency

U.S. CPI Urban Consumers NAS (CPURNSA)

   At Termination    (0.96)%    At Termination      04/15/21        USD      130,790   $  (851,412)      $  —      $  (851,412)  

U.S. CPI Urban Consumers NAS (CPURNSA)

   At Termination    (1.00)%    At Termination      04/15/21        USD      130,789     (897,854)               (897,854)  

U.S. CPI Urban Consumers NAS (CPURNSA)

   At Termination    (1.00)%    At Termination      04/15/21        USD      130,789     (897,854)               (897,854)  

U.S. CPI Urban Consumers NAS (CPURNSA)

   At Termination    (1.02)%    At Termination      04/15/21        USD      130,789     (921,825)               (921,825)  

U.S. CPI Urban Consumers NAS (CPURNSA)

   At Termination    (0.60)%    At Termination      04/15/21        USD      76,394     (293,446)               (293,446)  
0.00%    At Termination    U.S. CPI Urban Consumers NAS (CPURNSA)    At Termination      04/15/22        USD      130,789     1,290,383               1,290,383  
0.01%    At Termination    U.S. CPI Urban Consumers NAS (CPURNSA)    At Termination      04/15/22        USD      130,789     1,260,302               1,260,302  
0.02%    At Termination    U.S. CPI Urban Consumers NAS (CPURNSA)    At Termination      04/15/22        USD      130,789     1,240,246               1,240,246  
0.04%    At Termination    U.S. CPI Urban Consumers NAS (CPURNSA)    At Termination      04/15/22        USD      130,789     1,185,085               1,185,085  
0.27%    At Termination    U.S. CPI Urban Consumers NAS (CPURNSA)    At Termination      04/15/22        USD      76,394     426,294               426,294  

 

 

58  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Centrally Cleared Inflation Swaps (continued)

 

Paid by the Fund

  

Received by the Fund

  

Termination

Date

    

Notional

Amount

(000)

 

Value

    

Upfront
Premium
Paid

(Received)

    

Unrealized
Appreciation

(Depreciation)

 
Reference    Frequency    Rate    Frequency

U.S. CPI
Urban Consumers NAS (CPURNSA)

   At Termination    (0.05)%    At Termination      04/15/22        USD      196,184   $ (2,123,522    $  —      $ (2,123,522
0.62%    At Termination    U.S. CPI Urban Consumers NAS (CPURNSA)    At Termination      04/15/24        USD      196,184     2,873,107               2,873,107  
                   

 

 

    

 

 

    

 

 

 
                    $ 2,289,504      $      $ 2,289,504  
                   

 

 

    

 

 

    

 

 

 

Centrally Cleared Interest Rate Swaps

 

Paid by the Fund   

Received by the Fund

  

Effective

Date

    

Termination

Date

    

Notional
Amount

(000)

    

Value

    

Upfront
Premium
Paid

(Received)

    

Unrealized
Appreciation

(Depreciation)

 
Rate    Frequency    Rate    Frequency

1.57%

   At Termination    1-day CORRA, 0.25%    At Termination      N/A        07/15/20      CAD     412,484      $ (474,085)      $  —      $ (474,085)  

1.59%

   At Termination    1-day CORRA, 0.25%    At Termination      N/A        07/15/20      CAD     421,526        (497,096)               (497,096)  

1-day
CORRA, 0.25%

   At Termination    1.69%    At Termination      07/15/20        09/09/20      CAD     625,952        1,022,627        137        1,022,490  

0.69%

   Semi-Annual    3-month Canadian Bankers Acceptances, 0.56%    Semi-Annual      04/01/21        04/01/22      CAD     48,546        (48,235)               (48,235)  

0.73%

   Semi-Annual    3-month Canadian Bankers Acceptances, 0.56%    Semi-Annual      04/05/21        04/05/22      CAD     307,400        (400,227)               (400,227)  

0.77%

   Semi-Annual    3-month Canadian Bankers Acceptances, 0.56%    Semi-Annual      04/07/21        04/07/22      CAD     641,040        (1,009,822)               (1,009,822)  

0.71%

   Semi-Annual    3-month Canadian Bankers Acceptances, 0.56%    Semi-Annual      04/09/21        04/09/22      CAD     29,680        (33,688)               (33,688)  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.66%    Semi-Annual      05/13/22        05/13/23      CAD     615,020        (408,674)               (408,674)  

1-day SONIA, 0.06%

   At Termination    0.02%    At Termination      05/26/22        05/26/23      GBP     727,030        721,120               721,120  

1-day SONIA, 0.06%

   At Termination    0.02%    At Termination      05/26/22        05/26/23      GBP     51,040        48,093               48,093  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.74%    Semi-Annual      05/26/22        05/26/23      CAD     211,390        (28,660)               (28,660)  

 

 

  59


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Centrally Cleared Interest Rate Swaps (continued)

 

Paid by the Fund   

Received by the Fund

  

Effective

Date

    

Termination

Date

    

Notional
Amount

(000)

    

Value

    

Upfront
Premium
Paid

(Received)

    

Unrealized
Appreciation

(Depreciation)

 
Rate    Frequency    Rate    Frequency

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.73%    Semi-Annual      05/30/22        05/30/23      CAD     171,326      $  (30,903)      $      $  (30,903)  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.76%    Semi-Annual      05/30/22        05/30/23      CAD     175,453        6,957               6,957  

0.06%

   At Termination   

1-day Overnight Fed Funds Effective Rate,

0.08%

   At Termination      05/31/22        05/31/23      USD     150,421        (100,593)               (100,593)  

0.08%

   At Termination   

1-day Overnight Fed Funds Effective Rate,

0.08%

   At Termination      05/31/22        05/31/23      USD     124,849        (108,808)               (108,808)  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.76%    Semi-Annual      06/01/22        06/01/23      CAD     342,651        (283)               (283)  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.77%    Semi-Annual      06/01/22        06/01/23      CAD     342,650        5,999               5,999  

0.05%

   At Termination   

1-day Overnight Fed Funds Effective Rate,

0.08%

   At Termination      06/02/22        06/02/23      USD     121,912        (68,558)               (68,558)  

0.04%

   At Termination   

1-day Overnight Fed Funds Effective Rate,

0.08%

   At Termination      06/03/22        06/03/23      USD     243,824        (114,188)               (114,188)  

0.04%

   At Termination   

1-day Overnight Fed Funds Effective Rate,

0.08%

   At Termination      06/03/22        06/03/23      USD     243,824        (120,400)               (120,400)  

1-day SONIA, 0.06%

   At Termination    0.04%    At Termination      06/03/22        06/03/23      GBP     26,040        30,838               30,838  

0.74%

   Semi-Annual    3-month Canadian Bankers Acceptances, 0.56%    Semi-Annual      06/27/22        06/27/23      CAD     637,745        179,831        6,760        173,071  

 

 

60  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Centrally Cleared Interest Rate Swaps (continued)

 

Paid by the Fund   

Received by the Fund

  

Effective

Date

  

Termination

Date

    

Notional
Amount

(000)

    

Value

    

Upfront
Premium
Paid

(Received)

    

Unrealized
Appreciation

(Depreciation)

 
Rate    Frequency    Rate                  Frequency

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    1.07%    Semi-Annual    04/03/23      04/03/24      CAD     48,546      $ 63,269      $      $ 63,269  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    1.09%    Semi-Annual    04/03/23      04/03/24      CAD     307,400        455,627               455,627  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    1.21%    Semi-Annual    04/10/23      04/10/24      CAD     29,680        68,790               68,790  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    1.22%    Semi-Annual    04/10/23      04/10/24      CAD     641,040        1,532,702               1,532,702  

28-day MXIBTIIE, 5.28%

   Monthly    6.67%    Monthly    N/A      08/12/24      MXN     258,548        852,320        587        851,733  

28-day MXIBTIIE, 5.28%

   Monthly    6.72%    Monthly    N/A      08/13/24      MXN     222,465        750,071        489        749,582  

28-day MXIBTIIE, 5.28%

   Monthly    6.59%    Monthly    N/A      11/08/24      MXN     169,474        552,603        1,192        551,411  

28-day MXIBTIIE, 5.28%

   Monthly    5.20%    Monthly    N/A      05/02/25      MXN     461,445        342,880               342,880  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.75%    Semi-Annual    N/A      05/26/25      CAD     143,415        (11,427      (467      (10,960

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.82%    Semi-Annual    N/A      06/03/25      CAD     5,855        14,005        (30      14,035  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.82%    Semi-Annual    N/A      06/03/25      CAD     5,855        12,933        (58      12,991  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.85%    Semi-Annual    N/A      06/04/25      CAD     63,000        219,397        (809      220,206  

3-month Canadian Bankers Acceptances, 0.56%

   Semi-Annual    0.85%    Semi-Annual    N/A      06/04/25      CAD     63,000        214,780        (353      215,133  

28-day MXIBTIIE, 5.28%

   Monthly    6.32%    Monthly    N/A      07/17/25      MXN     73,475        216,803        284        216,519  

 

 

  61


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

Centrally Cleared Interest Rate Swaps (continued)

 

Paid by the Fund   

Received by the Fund

  

Effective

Date

    

Termination

Date

    

Notional
Amount

(000)

    

Value

    

Upfront
Premium
Paid

(Received)

    

Unrealized
Appreciation

(Depreciation)

 
Rate    Frequency    Rate    Frequency

2.91%

   Quarterly    3-month LIBOR, 0.30%    Semi-Annual      N/A        08/23/26      USD     3,692      $ (605,705)      $ (46)      $ (605,659)  

2.93%

   Quarterly    3-month LIBOR, 0.30%    Semi-Annual      N/A        08/24/28      USD     8,170        (1,664,105)        128        (1,664,233)  

3.16%

   Quarterly    3-month LIBOR, 0.30%    Semi-Annual      N/A        10/03/28      USD     4,519        (987,027)        71        (987,098)  

28-day MXIBTIIE, 5.28%

   Monthly    5.99%    Monthly      N/A        05/02/30      MXN     122,617        143,080        33        143,047  

28-day MXIBTIIE, 5.28%

   Monthly    6.03%    Monthly      N/A        05/02/30      MXN     122,617        160,198        27        160,171  

28-day MXIBTIIE, 5.28%

   Monthly    6.03%    Monthly      N/A        05/03/30      MXN     109,630        141,537        57        141,480  

28-day MXIBTIIE, 5.28%

   Monthly    5.96%    Monthly      N/A        05/06/30      MXN     88,916        93,858        22        93,836  

3-month LIBOR, 0.30%

   Semi-Annual    0.64%    Quarterly      08/12/20        08/12/30      USD     45,650        (58,849)               (58,849)  

3-month LIBOR, 0.30%

   Semi-Annual    0.80%    Quarterly      12/18/20        12/18/30      USD     12,195        146,765               146,765  

3-month LIBOR, 0.30%

   Semi-Annual    0.75%    Quarterly      12/21/20        12/21/30      USD     14,945        104,766               104,766  

3-month LIBOR, 0.30%

   Semi-Annual    0.88%    Quarterly      N/A        07/02/50      USD     3,682        (38,818)        (3,416)        (35,402)  
                      

 

 

    

 

 

    

 

 

 
                       $ 1,291,698      $ 4,608      $ 1,287,090  
                      

 

 

    

 

 

    

 

 

 

OTC Credit Default Swaps — Buy Protection

 

       Reference Obligation/Index   

Financing
Rate
Paid

by the
Fund

    Payment
Frequency
    Counterparty   Termination
Date
   

Notional
Amount
(000)

    Value     Upfront
Premiun
Paid
(Received)
    Unrealized
Appreciation
(Depreciation)
        
 

United Mexican States

     1.00     Quarterly     Bank of America N.A.     09/20/20     USD     7,452     $   (12,166)    $ 4,159     $ (16,325  
 

Australia & New Zealand Banking Group Ltd.

     1.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/20     USD     795       (3,769     (385     (3,384  
 

Australia & New Zealand Banking Group Ltd.

     1.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/20     USD     1,205       (5,709     (529     (5,180  
 

Australia & New Zealand Banking Group Ltd.

     1.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/20     USD     1,000       (4,739     (34     (4,705  
 

Avis Budget Group, Inc.

     5.00       Quarterly     Barclays Bank PLC     12/20/20     USD     2,550       23,513       229,834       (206,321  
 

Avis Budget Group, Inc.

     5.00       Quarterly     Barclays Bank PLC     12/20/20     USD     2,545       58,344       287,205       (228,861  
 

Avis Budget Group, Inc.

     5.00       Quarterly     Barclays Bank PLC     12/20/20     USD     2,545       23,467       369,780       (346,313  
 

Avis Budget Group, Inc.

     5.00       Quarterly     Goldman Sachs International     12/20/20     USD     2,555       23,559       201,889       (178,330  
 

Chesapeake Energy Corp.

     5.00       Quarterly     Goldman Sachs International     12/20/20     USD     563       548,172       96,382       451,790    
 

Chesapeake Energy Corp.

     5.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/20     USD     3,660       3,562,968       521,055       3,041,913    
 

Commonwealth Bank of Australia

     1.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/20     USD     1,150       (5,520     (397     (5,123  
 

Commonwealth Bank of Australia

     1.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/20     USD     1,000       (4,800     (255     (4,545  
 

Itochu Corp.

     1.00       Quarterly     Goldman Sachs International     12/20/20     JPY     29,326       (1,321     (55     (1,266  
 

Itochu Corp.

     1.00       Quarterly     Goldman Sachs International     12/20/20     JPY     29,326       (1,321     (58     (1,263  

 

 

62  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

OTC Credit Default Swaps — Buy Protection (continued)

 

    

 

Reference

Obligation/Index

  

Financing
Rate
Paid

by the
Fund

    Payment
Frequency
    Counterparty   Termination
Date
   

Notional
Amount
(000)

    Value     Upfront
Premiun
Paid
(Received)
    Unrealized
Appreciation
(Depreciation)
        
 

Itochu Corp.

     1.00     Quarterly     Goldman Sachs International     12/20/20     JPY     29,326     $   (1,321)    $ (58   $ (1,263  
 

Itochu Corp.

     1.00       Quarterly     Goldman Sachs International     12/20/20     JPY     32,023       (1,443     (53     (1,390  
 

Mitsubishi Corp.

     1.00       Quarterly     Barclays Bank PLC     12/20/20     JPY     47,573       (2,152     (282     (1,870  
 

Mitsubishi Corp.

     1.00       Quarterly     Goldman Sachs International     12/20/20     JPY     29,326       (1,327     (113     (1,214  
 

Mitsui & Co. Ltd.

     1.00       Quarterly     Goldman Sachs International     12/20/20     JPY     58,651       (2,643     (89     (2,554  
 

Mitsui & Co. Ltd.

     1.00       Quarterly     Goldman Sachs International     12/20/20     JPY     29,326       (1,322     (45     (1,277  
 

National Australia Bank Ltd.

     1.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/20     USD     1,000       (4,715     (129     (4,586  
 

Standard Chartered Bank

     1.00       Quarterly     BNP Paribas S.A.     12/20/20     EUR     460       (2,339     1,105       (3,444  
 

Standard Chartered Bank

     1.00       Quarterly     BNP Paribas S.A.     12/20/20     EUR     810       (4,118     1,866       (5,984  
 

Standard Chartered Bank

     1.00       Quarterly     Goldman Sachs International     12/20/20     EUR     610       (3,101     627       (3,728  
 

Standard Chartered Bank

     1.00       Quarterly     Morgan Stanley & Co. International PLC     12/20/20     EUR     240       (1,220     589       (1,809  
 

Sumitomo Corp.

     1.00       Quarterly     Barclays Bank PLC     12/20/20     JPY     24,938       (1,121     34       (1,155  
 

Sumitomo Corp.

     1.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/20     JPY     25,316       (1,138     78       (1,216  
 

Westpac Banking Corp.

     1.00       Quarterly     Citibank N.A.     12/20/20     USD     1,000       (4,755     (300     (4,455  
 

DISH DBS Corp.

     5.00       Quarterly     Goldman Sachs International     12/20/23     USD     2,168       (89,550     77,610       (167,160  
 

KB Home

     5.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/23     USD     2,138       (218,764     (124,757     (94,007  
 

Realogy Group LLC

     5.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/23     USD     1,069       39,413       (7,292     46,705    
 

RR Donnelley & Sons Co.

     5.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/23     USD     1,070       163,990       37,721       126,269    
 

Beazer Homes USA, Inc.

     5.00       Quarterly     Barclays Bank PLC     06/20/24     USD     1,199       (54,610     (63,641     9,031    
 

Beazer Homes USA, Inc.

     5.00       Quarterly     BNP Paribas S.A.     06/20/24     USD     1,000       (45,547     (46,867     1,320    
 

Beazer Homes USA, Inc.

     5.00       Quarterly     BNP Paribas S.A.     06/20/24     USD     1,103       (50,238     (55,784     5,546    
 

Tenet Healthcare Corp.

     5.00       Quarterly     Barclays Bank PLC     06/20/24     USD     1,000       15,024       (9,353     24,377    
 

Tenet Healthcare Corp.

     5.00       Quarterly     Goldman Sachs International     06/20/24     USD     1,175       10,624       (33,713     44,337    
 

Tenet Healthcare Corp.

     5.00       Quarterly     Goldman Sachs International     06/20/24     USD     1,150       10,397       (32,996     43,393    
 

Tenet Healthcare Corp.

     5.00       Quarterly     Goldman Sachs International     06/20/24     USD     1,175       10,623       (33,743     44,366    
 

Tenet Healthcare Corp.

     5.00       Quarterly     Goldman Sachs International     06/20/24     USD     1,223       18,374       (13,837     32,211    
 

Tenet Healthcare Corp.

     5.00       Quarterly     JPMorgan Chase Bank N.A.     06/20/24     USD     500       4,521       (5,476     9,997    
 

Avis Budget Group, Inc.

     5.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/24     USD     750       131,597       56,767       74,830    
 

Avis Budget Group, Inc.

     5.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/24     USD     1,680       294,776       125,990       168,786    
 

Boeing Co.

     1.00       Quarterly     BNP Paribas S.A.     12/20/24     USD     2,250       134,441       (40,163     174,604    
 

Boeing Co.

     1.00       Quarterly     Morgan Stanley & Co. International PLC     12/20/24     USD     5,950       355,523       (62,869     418,392    
 

Broadcom, Inc.

     1.00       Quarterly     JPMorgan Chase Bank N.A.     12/20/24     USD     1,325       (89     36,354       (36,443  
 

Occidental Petroleum Corp.

     1.00       Quarterly     Barclays Bank PLC     12/20/24     USD     5,080       989,242       2,383,251       (1,394,009  
 

Avis Budget Group, Inc.

     5.00       Quarterly     JPMorgan Chase Bank N.A.     06/20/25     USD     2,540       546,363       313,612       232,751    
 

Federative Republic of Brazil

     1.00       Quarterly     Morgan Stanley & Co. International PLC     06/20/25     USD     6,047       430,789       763,168       (332,379  
 

Federative Republic of Brazil

     1.00       Quarterly     Morgan Stanley & Co. International PLC     06/20/25     USD     8,081       575,653       1,128,758       (553,105  
 

Republic of Chile

     1.00       Quarterly     Citibank N.A.     06/20/25     USD     5,147       (35,406     160,922       (196,328  
 

Republic of South Africa

     1.00       Quarterly     Barclays Bank PLC     06/20/25     USD     3,602       336,955       305,806       31,149    
 

Republic of South Africa

     1.00       Quarterly     Goldman Sachs International     06/20/25     USD     6,366       595,561       508,167       87,394    
 

Republic of South Africa

     1.00       Quarterly     Goldman Sachs International     06/20/25     USD     6,122       572,765       538,037       34,728    
 

Republic of South Africa

     1.00       Quarterly     Goldman Sachs International     06/20/25     USD     4,506       421,609       392,220       29,389    
 

Republic of South Africa

     1.00       Quarterly     Morgan Stanley & Co. International PLC     06/20/25     USD     23,518       2,200,262       3,153,359       (953,097  
 

Republic of the Philippines

     1.00       Quarterly     Citibank N.A.     06/20/25     USD     11,217       (188,939     378,179       (567,118  
 

United Mexican States

     1.00       Quarterly     Citibank N.A.     06/20/25     USD     10,157       274,474       997,772       (723,298  
 

CMBX.NA.9.AAA

     0.50       Monthly     Credit Suisse International     09/17/58     USD     4,540       (43,081     51,710       (94,791  
 

CMBX.NA.9.AAA

     0.50       Monthly     Deutsche Bank AG     09/17/58     USD     3,620       (34,351     41,828       (76,179  
 

CMBX.NA.9.AAA

     0.50       Monthly     Morgan Stanley & Co. International PLC     09/17/58     USD     2,530       (24,008     28,816       (52,824  
 

CMBX.NA.9.AAA

     0.50       Monthly     Morgan Stanley & Co. International PLC     09/17/58     USD     3,050       (28,943     34,739       (63,682  
 

CMBX.NA.9.AAA

     0.50       Monthly     Morgan Stanley & Co. International PLC     09/17/58     USD     5,570       (52,855     69,611       (122,466  
 

CMBX.NA.9.BBB-

     3.00       Monthly     Citigroup Global Markets, Inc.     09/17/58     USD     2,080       403,325       71,181       332,144    
 

CMBX.NA.9.BBB-

     3.00       Monthly     Morgan Stanley & Co. International PLC     09/17/58     USD     204       39,556       11,430       28,126    

 

 

  63


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

OTC Credit Default Swaps — Buy Protection (continued)

 

Reference
Obligation/Index
   Financing
Rate
Paid
by the
Fund
    Payment
Frequency
    Counterparty   Termination
Date
   

Notional
Amount
(000)

    Value     Upfront
Premiun
Paid
(Received)
    Unrealized
Appreciation
(Depreciation)
 

CMBX.NA.6.AAA

     0.50     Monthly     Deutsche Bank AG     05/11/63       USD       2,217     $ (12,556   $ 411     $ (12,967

CMBX.NA.6.AAA

     0.50       Monthly     Deutsche Bank AG     05/11/63       USD       5,387       (30,511     (1,673     (28,838

CMBX.NA.6.BBB-

     3.00       Monthly     J.P. Morgan Securities LLC     05/11/63       USD       850       265,553       79,850       185,703  
              

 

 

   

 

 

   

 

 

 
               $ 12,099,925     $ 12,926,926     $ (827,001
              

 

 

   

 

 

   

 

 

 

OTC Credit Default Swaps — Sell Protection

 

       Reference
Obligation/Index
   Financing
Rate
Received
by
the Fund
    Payment
Frequency
    Counterparty   Termination
Date
    Credit
Rating(a)
   

Notional
Amount
(000)(b)

    Value     Upfront
Premium
Paid
(Received)
    Unrealized
Appreciation
(Depreciation)
        
 

People’s Republic of China

     1.00     Quarterly     Barclays Bank PLC     09/20/20       A+       USD       1,000     $ 2,247     $ (360   $ 2,607    
 

People’s Republic of China

     1.00       Quarterly     Goldman Sachs International     09/20/20       A+       USD       1,000       2,248       (380     2,628    
 

United Mexican States

     1.00       Quarterly     JPMorgan Chase Bank N.A.     09/20/20       BBB       USD       7,452       12,167       (3,623     15,790    
 

ITRAXX.ASIA.XJ.IG.24.V1

     1.00       Quarterly     Goldman Sachs International     12/20/20       A-       USD       1,825       8,756       (4,805     13,561    
 

Broadcom, Inc.(c)

     1.00       Quarterly     Citibank N.A.     06/20/24       BBB-       USD       14,931       119,483       (908,353     1,027,836    
         Morgan Stanley & Co.                
 

CMBX.NA.7.AAA

     0.50       Monthly     International PLC     01/17/47       AAA       USD       4,964       45,353       (142,825     188,178    
 

CMBX.NA.3.AM

     0.50       Monthly     Credit Suisse International     12/13/49       N/R       USD       (d)             (10     10    
 

CMBX.NA.3.AM

     0.50       Monthly     Goldman Sachs International     12/13/49       N/R       USD       (d)             (25     25    
 

CMBX.NA.3.AM

     0.50       Monthly     JPMorgan Chase Bank N.A.     12/13/49       N/R       USD       1             (51     51    
 

CMBX.NA.9.BBB-

     3.00       Monthly     Deutsche Bank AG     09/17/58       N/R       USD       906       (175,679     (104,969     (70,710  
 

CMBX.NA.9.BBB-

     3.00       Monthly     J.P. Morgan Securities LLC     09/17/58       N/R       USD       438       (84,931     (37,434     (47,497  
         Morgan Stanley & Co.                
 

CMBX.NA.9.BBB-

     3.00       Monthly     International PLC     09/17/58       N/R       USD       1,060       (205,541     (51,868     (153,673  
         Morgan Stanley & Co.                
 

CMBX.NA.9.BBB-

     3.00       Monthly     International PLC     09/17/58       N/R       USD       231       (44,793     (13,589     (31,204  
         Morgan Stanley & Co.                
 

CMBX.NA.9.BBB-

     3.00       Monthly     International PLC     09/17/58       N/R       USD       1,200       (232,687     (1,507     (231,180  
 

CMBX.NA.10.A

     2.00       Monthly     Deutsche Bank AG     11/17/59       A-       USD       3,340       (288,213     (140,449     (147,764  
 

CMBX.NA.10.A

     2.00       Monthly     Deutsche Bank AG     11/17/59       A-       USD       1,670       (144,107     (71,405     (72,702  
 

CMBX.NA.10.BBB-

     3.00       Monthly     J.P. Morgan Securities LLC     11/17/59       BBB-       USD       60       (11,971     (4,992     (6,979  
 

CMBX.NA.6.BBB-

     3.00       Monthly     Credit Suisse International     05/11/63       BBB       USD       850       (265,552     (64,662     (200,890  
                  

 

 

   

 

 

   

 

 

   
                   $ (1,263,220   $ (1,551,307   $ 288,087    
                  

 

 

   

 

 

   

 

 

   

 

(a)

Using the rating of the issuer or the underlying securities of the index, as applicable, provided by S&P Global Ratings.

 
(b)

The maximum potential amount the Portfolio may pay should a negative credit event take place as defined under the terms of agreement.

 
(c)

Security is valued using significant unobservable inputs and is classified as Level 3 in the fair value hierarchy.

 
(d)

Notional amount is less than USD 500.

 

 

 

64  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

OTC Interest Rate Swaps

 

      

Paid by the Fund

 

Received by the Fund

    

 

  Termination     

 

    Notional
Amount
      

 

   

Upfront

Premium

Paid

    Unrealized
Appreciation
        
    Rate   Frequency   Rate   Frequency   Counterparty   Date          (000)     Value     (Received)     (Depreciation)      
      3-month LIBOR,                  
  3.27%   Semi-Annual   0.30%   Quarterly   Deutsche Bank AG   05/16/21     USD       9,510     $ (283,901   $     $ (283,901  
  1-day BZDIOVER,         JPMorgan Chase Bank              
  0.01%   At Termination   5.13%   At Termination   N.A.   01/02/23     BRL       58,940       353,210             353,210    
  28-day MXIBTIIE,                      
  5.28%   Monthly   6.33%   Monthly   Citibank N.A.   06/09/25     MXN       14,869       44,123       (58     44,181    
  28-day MXIBTIIE,                      
  5.28%   Monthly   6.33%   Monthly   Citibank N.A.   07/17/25     MXN       36,609       108,391       (111     108,502    
  28-day MXIBTIIE,         Goldman Sachs              
  5.28%   Monthly   6.32%   Monthly   International   08/06/25     MXN       109,616       325,461       (323     325,784    
  28-day MXIBTIIE,                      
  5.28%   Monthly   6.27%   Monthly   Bank of America N.A.   12/05/25     MXN       4,348       12,495       (36     12,531    
                 

 

 

   

 

 

   

 

 

   
                  $ 559,779     $ (528   $ 560,307    
                 

 

 

   

 

 

   

 

 

   

 

 

  65


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

OTC Total Return Swaps

 

      

Paid by the Fund

 

Received by the Fund

    

 

  Termination     

 

    Notional
Amount
      

 

   

Upfront

Premium

Paid

    Unrealized
Appreciation
        
    Reference   Frequency   Rate   Frequency   Counterparty   Date          (000)     Value     (Received)     (Depreciation)      
 

SPDR S&P Oil &

    3-month LIBOR                  
 

Gas Exploration &

    minus 0.63%,                  
 

Production ETF

  At Termination   0.30%   At Termination   BNP Paribas S.A.   08/05/20     USD       271     $ (3,908   $     $ (3,908  
      Goldman Sachs                  
      Systematic Skew                  
      U.S. Series 10                  
 

3-month LIBOR,

    Excess Return     Goldman Sachs              
 

0.30%

  At Termination   Strategy   At Termination   International   09/09/20     USD       1,167       8,271             8,271    
      Goldman Sachs                  
      Systematic Skew                  
      U.S. Series 10                  
 

3-month LIBOR,

    Excess Return     Goldman Sachs              
 

0.30%

  At Termination   Strategy   At Termination   International   09/09/20     USD       288       2,089             2,089    
      3-month LIBOR                  
      minus 0.30%,                  
 

Tidewater, Inc.

  At Termination   0.30%   At Termination   BNP Paribas S.A.   09/29/20     USD       85       13,742             13,742    
      3-month LIBOR                  
      minus 0.30%,                  
 

Tidewater, Inc.

  At Termination   0.30%   At Termination   BNP Paribas S.A.   09/29/20     USD       96       15,616             15,616    
      3-month LIBOR                  
 

Berry Petroleum

    minus 0.45%,     Credit Suisse              
 

Corp.

  At Termination   0.30%   At Termination   International   11/05/20     USD       312       (100,226           (100,226  
      3-month LIBOR                  
 

Antero Resources

    minus 0.50%,                  
 

Corp.

  At Termination   0.30%   At Termination   Citibank N.A.   02/12/21     USD       1,210       (422,029           (422,029  
      3-month LIBOR                  
      minus 0.15%,                  
 

EQT Corp.

  At Termination   0.30%   At Termination   Citibank N.A.   02/12/21     USD       2,175       139,719             139,719    
 

iShares iBoxx High

    3-month LIBOR                  
 

Yield Corporate

    minus 3.25%,                  
 

Bond Index

  At Termination   0.30%   At Termination   Citibank N.A.   02/12/21     USD       18,524       (667,810           (667,810  
      Goldman Sachs                  
      Systematic Skew                  
      U.S. Series 10                  
 

3-month LIBOR,

    Excess Return     Goldman Sachs              
 

0.30%

  At Termination   Strategy   At Termination   International   04/09/21     USD       1,454       37,284             37,284    
      3-month LIBOR                  
 

Oasis Petroleum,

    minus 3.00%,     Credit Suisse              
 

Inc.

  At Termination   0.30%   At Termination   International   04/23/21     USD       191       (32,824           (32,824  
                 

 

 

   

 

 

   

 

 

   
                  $ (1,010,076   $     $ (1,010,076  
                 

 

 

   

 

 

   

 

 

   

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of investments and derivative financial instruments. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

 

   

Level 1 — Unadjusted price quotations in active markets/exchanges for identical assets or liabilities that the Portfolio has the ability to access

 

   

Level 2 — Other observable inputs (including, but not limited to, quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market–corroborated inputs)

 

   

Level 3 — Unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the BlackRock Global Valuation Methodologies Committee’s (the “Global Valuation Committee’s”) assumptions used in determining the fair value of investments and derivative financial instruments)

 

 

66  


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Investments classified within Level 3 have significant unobservable inputs used by the Global Valuation Committee in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies or funds. There may not be a secondary market, and/or there are a limited number of investors. The categorization of a value determined for investments and derivative financial instruments is based on the pricing transparency of the investments and derivative financial instruments and is not necessarily an indication of the risks associated with investing in those securities. For information about the Master Portfolio’s policy regarding valuation of investments and derivative financial instruments, refer to the Master Portfolio’s most recent financial statements as contained in its semi-annual report.

The following tables summarize the Master Portfolio’s investments and derivative financial instruments categorized in the disclosure hierarchy:

      Level 1        Level 2        Level 3        Total  

Assets

                 

Investments

                 

Long-Term Investments

                 

Asset-Backed Securities

   $        $ 1,742,051,934        $ 130,759,049        $ 1,872,810,983  

Common Stocks

     27,421,216                   282,627          27,703,843  

Corporate Bonds

              7,326,872,397          32,104,082          7,358,976,479  

Floating Rate Loan Interests

              183,832,249          154,152,713          337,984,962  

Foreign Agency Obligations

              133,567,683                   133,567,683  

Foreign Government Obligations

              456,935,638                   456,935,638  

Investment Companies

     356,733,122                            356,733,122  

Municipal Bonds

              724,837,316                   724,837,316  

Non-Agency Mortgage-Backed Securities

              860,273,915          23,583,474          883,857,389  

Preferred Securities

              86,422,781                   86,422,781  

U.S. Government Sponsored Agency Securities

              9,977,960,189                   9,977,960,189  

U.S. Treasury Obligations

              1,358,449,192                   1,358,449,192  

Warrants

                 

Oil, Gas & Consumable Fuels

              191,121                   191,121  

Real Estate Management & Development

     828                            828  

Short-Term Securities

                 

Money Market Funds

     2,318,044,441                            2,318,044,441  

Options Purchased

                 

Equity Contracts

     14,884,093                            14,884,093  

Foreign Currency Exchange Contracts

              5,967,073                   5,967,073  

Interest Rate Contracts

     1,033,142          1,807,571                   2,840,713  

Unfunded Floating Rate Loan Interests

              18,053                   18,053  

Liabilities

                 

TBA Sale Commitments

              (3,747,217,386                 (3,747,217,386

Unfunded Floating Rate Loan Interests

                       (219,603        (219,603
  

 

 

      

 

 

      

 

 

      

 

 

 
   $ 2,718,116,842        $ 19,111,969,726        $ 340,662,342        $ 22,170,748,910  
  

 

 

      

 

 

      

 

 

      

 

 

 

Derivative Financial Instruments(a)

                 

Assets

                 

Credit Contracts

   $        $ 9,463,597        $ 1,027,836        $ 10,491,433  

Equity Contracts

     7,454                            7,454  

Foreign Currency Exchange Contracts

              6,155,262                   6,155,262  

Interest Rate Contracts

     18,508,032          8,937,719                   27,445,751  

Other Contracts

              8,275,417                   8,275,417  

Liabilities

                 

Credit Contracts

              (8,695,648                 (8,695,648

Equity Contracts

     (10,932,077                          (10,932,077

Foreign Currency Exchange Contracts

              (9,751,006                 (9,751,006

Interest Rate Contracts

     (8,028,321        (7,488,614                 (15,516,935

Other Contracts

              (5,985,913                 (5,985,913
  

 

 

      

 

 

      

 

 

      

 

 

 
   $ (444,912      $ 910,814        $ 1,027,836        $ 1,493,738  
  

 

 

      

 

 

      

 

 

      

 

 

 

The breakdown of the Portfolio’s investments into major categories is disclosed in the Schedule of Investments above.

 

  (a) 

Derivative financial instruments are swaps, futures contracts, forward foreign currency exchange contracts and options written. Swaps, futures contracts and forward foreign currency exchange contracts are valued at the unrealized appreciation (depreciation) on the instrument and options written are shown at value.

 

 

 

  67


Schedule of Investments  (unaudited) (continued)

June 30, 2020

  

Master Total Return Portfolio

 

A reconciliation of Level 3 investments is presented when the Master Portfolio had a significant amount of Level 3 investments at the beginning and/or end of the period in relation to net assets. The following table is a reconciliation of Level 3 investments for which significant unobservable inputs were used in determining fair value:

 

      Asset-Backed
Securities
      

Common

Stocks

       Corporate
Bonds
       Floating Rate
Loan Interests
      

Non-Agency

Mortgage-

Backed

Securities

 

Assets

                      

Opening Balance, as of October 1, 2019

   $ 119,808,152        $        $ 24,565,099        $ 143,255,372        $ 36,178,812  

Transfers into Level 3

     17,878,419                            52,321,878          6,391,669  

Transfers out of Level 3

     (16,689,481                          (12,785,807        (12,631,615

Accrued discounts/premiums

     136,468                            105,514          21,503  

Net realized gain (loss)

     402,396                            (974,776        148,249  

Net change in unrealized appreciation (depreciation)(a)

     (4,622,180        185,611          (6,994,171        (5,846,276        (2,464,330

Purchases

     35,312,608          97,016          15,672,281          54,844,883          3,497,595  

Sales

     (21,467,333                 (1,139,127        (76,768,075        (7,558,409
  

 

 

      

 

 

      

 

 

      

 

 

      

 

 

 

Closing Balance, as of June 30, 2020

   $ 130,759,049        $ 282,627        $ 32,104,082        $ 154,152,713        $ 23,583,474  
  

 

 

      

 

 

      

 

 

      

 

 

      

 

 

 

Net change in unrealized appreciation (depreciation) on investments still held at June 30, 2020(a)

   $ (4,559,156      $ 185,611        $ (6,994,171      $ (5,937,149      $ (2,464,330
  

 

 

      

 

 

      

 

 

      

 

 

      

 

 

 
                          Options
Purchased
       Unfunded
Floating Rate
Loan Interests
       Total  

Assets

                      

Opening Balance, as of October 1, 2019

             $ 1        $        $ 323,807,436  

Transfers into Level 3

                        (14,242        76,577,724  

Transfers out of Level 3

                                 (42,106,903

Accrued discounts/premiums

                                 263,485  

Net realized gain (loss)

               (8,551                 (432,682

Net change in unrealized appreciation (depreciation)(a)

               (276,540        (205,361        (20,223,247

Purchases

               285,090                   109,709,473  

Sales

                                 (106,932,944
            

 

 

      

 

 

      

 

 

 

Closing Balance, as of June 30, 2020

             $        $ (219,603      $ 340,662,342  
            

 

 

      

 

 

      

 

 

 

Net change in unrealized appreciation (depreciation) on investments still held at June 30, 2020(a)

 

          $ (285,090      $ (205,361      $ (20,259,646
            

 

 

      

 

 

      

 

 

 

(a) Any difference between net change in unrealized appreciation (depreciation) and net change in unrealized appreciation (depreciation) on investments still held at June 30, 2020, is generally due to investments no longer held or categorized as Level 3 at period end.

The following table is a reconciliation of Level 3 derivative financial instruments for which significant unobservable inputs were used in determining fair value:

 

      Credit Contracts            

Foreign Currency

Exchange Contracts

 
      Assets        Liabilities             Assets        Liabilities  

Opening Balance, as of October 1, 2019

   $        $          $        $ (1

Transfers into Level 3

     246,546                               

Transfers out of Level 3

                               

Accrued discounts/premiums

     171,647                              1  

Net realized gain (loss)

     495,172                               

Net change in unrealized appreciation (depreciation)(a)

                                   

Purchases

                                   

Issues

                                   

Sales

                                   

Settlements

     114,471                               
  

 

 

      

 

 

        

 

 

      

 

 

 

Closing Balance, as of June 30, 2020

   $ 1,027,836        $          $        $  
  

 

 

      

 

 

        

 

 

      

 

 

 

Net change in unrealized appreciation (depreciation) on investments still held at June 30, 2020(a)

   $ 495,172        $          $        $  
  

 

 

      

 

 

        

 

 

      

 

 

 

(a) Any difference between net change in unrealized appreciation (depreciation) and net change in unrealized appreciation (depreciation) on investments still held at June 30, 2020 is generally due to investments no longer held or categorized as Level 3 at period end.

The Master Portfolio’s investments that are categorized as Level 3 were valued utilizing third party pricing information without adjustment. Such valuations are based on unobservable inputs. A significant change in third party information could result in a significantly lower or higher value of such Level 3 Investments.

 

 

68