_NXN

Nuveen New York Select Tax-Free Income Portfolio

Portfolio of Investments    June 30, 2020

(Unaudited)

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	LONG-TERM INVESTMENTS – 94.4%
	MUNICIPAL BONDS – 94.4%
	Consumer Staples  – 4.6%
$435	Erie County Tobacco Asset Securitization Corporation, New York, Tobacco Settlement Asset-Backed Bonds, Series 2005A, 5.000%, 6/01/38	7/20 at 100.00	B-	$435,178
	New York Counties Tobacco Trust VI, New York, Tobacco Settlement Pass-Through Bonds, Series Series 2016A-1:
390	5.625%, 6/01/35	No Opt. Call	BBB	416,185
1,530	5.750%, 6/01/43	No Opt. Call	BB+	1,735,219
2,355	Total Consumer Staples			2,586,582
	Education and Civic Organizations – 15.8%
165	Albany Industrial Development Agency, New York, Revenue Bonds, Brighter Choice Charter Schools, Series 2007A, 5.000%, 4/01/37	8/20 at 100.00	BB	165,016
280	Buffalo and Erie County Industrial Land Development Corporation, New York, Revenue Bonds, Enterprise Charter School Project, Series 2011A, 7.500%, 12/01/40	12/20 at 100.00	B+	282,674
	Build New York City Resource Corporation, New York, Revenue Bonds, South Bronx Charter School for International Cultures and the Arts Project, Series 2013A:
75	5.000%, 4/15/33	4/23 at 100.00	BB+	76,459
110	5.000%, 4/15/43	4/23 at 100.00	BB+	110,987
150	Dormitory Authority of the State of New York, General Revenue Bonds, Saint Johns University, Series 2013A, 5.000%, 7/01/44	7/23 at 100.00	A-	159,360
1,000	Dormitory Authority of the State of New York, Housing Revenue Bonds, Fashion Institute of Technology, Series 2007, 5.250%, 7/01/34  –  FGIC Insured	No Opt. Call	Baa2	1,170,010
	Dormitory Authority of the State of New York, Lease Revenue Bonds, State University Dormitory Facilities, Series 2015A:
20	5.000%, 7/01/31	7/25 at 100.00	Aa3	23,341
25	5.000%, 7/01/33	7/25 at 100.00	Aa3	28,941
1,000	Dormitory Authority of the State of New York, Revenue Bonds, Columbia University, Series 2011A, 5.000%, 10/01/41	4/21 at 100.00	AAA	1,032,440
605	Dormitory Authority of the State of New York, Revenue Bonds, Icahn School of Medicine at Mount Sinai, Refunding Series 2015A, 5.000%, 7/01/40	7/25 at 100.00	A-	671,090
290	Dormitory Authority of the State of New York, Revenue Bonds, New York University, Series 2015A, 5.000%, 7/01/35	7/25 at 100.00	Aa2	346,359
1,185	Dormitory Authority of the State of New York, Revenue Bonds, New York University, Series 2016A, 5.000%, 7/01/39	7/26 at 100.00	Aa2	1,404,178
70	Dormitory Authority of the State of New York, Revenue Bonds, Rochester Institute of Technology, Series 2019A, 5.000%, 7/01/49	7/29 at 100.00	A1	86,014
250	Dormitory Authority of the State of New York, Revenue Bonds, Vaughn College of Aeronautics & Technology, Series 2016A, 5.500%, 12/01/36, 144A	12/26 at 100.00	BB-	249,982

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NXN	Nuveen New York Select Tax-Free Income Portfolio (continued)
	Portfolio of Investments June 30, 2020
	(Unaudited)

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Education and Civic Organizations (continued)
$215	Glen Cove Local Economic Assistance Corporation, New York, Revenue Bonds, Garvies Point Public Improvement Project, Capital Appreciation Series 2016C, 0.000%, 1/01/55 (4)	1/34 at 100.00	N/R	$192,459
110	Hempstead Town Local Development Corporation, New York, Revenue Bonds, Adelphi University Project, Series 2013, 5.000%, 9/01/38	9/23 at 100.00	A-	118,145
	New York City Industrial Development Agency, New York, PILOT Revenue Bonds, Queens Baseball Stadium Project, Series 2006:
500	5.000%, 1/01/31  –  AMBAC Insured	7/20 at 100.00	Baa3	500,050
430	4.750%, 1/01/42  –  AMBAC Insured	7/20 at 100.00	Baa3	430,004
300	New York City Industrial Development Authority, New York, PILOT Revenue Bonds, Yankee Stadium Project, Series 2006, 4.750%, 3/01/46  –  NPFG Insured	7/20 at 100.00	Baa1	300,063
1,005	New York City Trust for Cultural Resources, New York, Revenue Bonds, Wildlife Conservation Society, Series 2014A, 5.000%, 8/01/32	8/23 at 100.00	AA-	1,114,967
190	New York Liberty Development Corporation, New York, Liberty Revenue Bonds, Bank of America Tower at One Bryant Park Project, Second Priority Refunding Series 2019 Class 2, 2.625%, 9/15/69	3/29 at 100.00	A2	188,809
145	New York Liberty Development Corporation, New York, Liberty Revenue Bonds, Bank of America Tower at One Bryant Park Project, Second Priority Refunding Series 2019 Class 3, 2.800%, 9/15/69	3/29 at 100.00	Baa2	142,312
8,120	Total Education and Civic Organizations			8,793,660
	Financials – 1.1%
450	Liberty Development Corporation, New York, Goldman Sachs Headquarter Revenue Bonds, Series 2005, 5.250%, 10/01/35	No Opt. Call	A	608,364
	Health Care – 0.6%
100	Dormitory Authority of the State of New York, Highland Hospital of Rochester Revenue Bonds, Series 2010, 5.200%, 7/01/32	7/20 at 100.00	A	100,280
200	Dutchess County Local Development Corporation, New York, Revenue Bonds, Health Quest Systems, Inc Project, Series 2016B, 4.000%, 7/01/41	7/26 at 100.00	A-	210,426
300	Total Health Care			310,706
	Industrials – 3.8%
160	Build New York City Resource Corporation, New York, Solid Waste Disposal Revenue Bonds, Pratt Paper NY, Inc Project, Series 2014, 5.000%, 1/01/35 (AMT), 144A	1/25 at 100.00	N/R	167,687
1,865	New York Liberty Development Corporation, New York, Liberty Revenue Bonds, 3 World Trade Center Project, Class 1 Series 2014, 5.000%, 11/15/44, 144A	11/24 at 100.00	N/R	1,935,963
2,025	Total Industrials			2,103,650
	Long-Term Care – 0.2%
100	Dormitory Authority of the State of New York, Non-State Supported Debt, Ozanam Hall of Queens Nursing Home Revenue Bonds, Series 2006, 5.000%, 11/01/31	7/20 at 100.00	A2	100,255
25	Monroe County Industrial Development Corporation, New York, Revenue Bonds, Saint Ann's Community Project, Series 2019, 5.000%, 1/01/40	1/26 at 103.00	N/R	22,846
125	Total Long-Term Care			123,101

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Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Tax Obligation/General – 5.2%
$1,080	New York City, New York, General Obligation Bonds, Fiscal 2017 Series B-1, 5.000%, 12/01/41	12/26 at 100.00	Aa1	$1,285,373
835	New York City, New York, General Obligation Bonds, Fiscal 2020 SeriesD-1, 4.000%, 3/01/44	3/30 at 100.00	Aa1	957,945
600	Yonkers, New York, General Obligation Bonds, Refunding Series 2011A, 5.000%, 10/01/24  –  AGM Insured	10/21 at 100.00	AA	635,700
2,515	Total Tax Obligation/General			2,879,018
	Tax Obligation/Limited – 20.4%
1,050	Dormitory Authority of the State of New York, State Personal Income Tax Revenue Bonds, General Purpose Series 2012D, 5.000%, 2/15/37	2/22 at 100.00	AA+	1,111,551
1,000	Dormitory Authority of the State of New York, State Personal Income Tax Revenue Bonds, General Purpose, Series 2019A Bidding Group 2,3,4, 5.000%, 3/15/46	3/29 at 100.00	Aa1	1,238,650
1,000	Dormitory Authority of the State of New York, State Sales Tax Revenue Bonds, Series 2015B Group A,B&C, 5.000%, 3/15/35	9/25 at 100.00	AA+	1,177,300
1,000	Government of Guam, Business Privilege Tax Bonds, Refunding Series 2015D, 5.000%, 11/15/25	No Opt. Call	BB	1,106,300
800	Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Second Indenture Fiscal 2017 Series A, 5.000%, 2/15/38	2/27 at 100.00	Aa2	943,368
760	Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Senior Fiscal 2012 Series 2011A, 5.750%, 2/15/47	2/21 at 100.00	Aa2	783,530
1,000	New York City Transitional Finance Authority, New York, Building Aid Revenue Bonds, Fiscal Series 2015S-2, 5.000%, 7/15/40	7/25 at 100.00	AA	1,159,250
1,000	New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Subordinate Fiscal 2013 Series I, 5.000%, 5/01/38	5/23 at 100.00	AAA	1,104,930
450	New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Subordinate Fiscal 2014 Series D-1, 5.000%, 2/01/35	2/24 at 100.00	AAA	510,557
500	New York City Transitional Finance Authority, New York, Future Tax Secured Revenue Bonds, Subordinate Series 2011-D1, 5.250%, 2/01/30	2/21 at 100.00	AAA	513,390
535	New York City Transitional Finance Authority, New York, Future Tax Secured Revenue Bonds, Tender Option Bond Trust 2015-XF0080, 13.237%, 5/01/38, 144A (IF)	10/20 at 100.00	AAA	540,933
235	Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Restructured 2018A-1, 5.000%, 7/01/58	7/28 at 100.00	N/R	246,292
845	Virgin Islands Public Finance Authority, Matching Fund Loan Notes Revenue Bonds, Series 2012A, 5.000%, 10/01/32  –  AGM Insured	10/22 at 100.00	AA	914,298
10,175	Total Tax Obligation/Limited			11,350,349
	Transportation – 18.7%
900	Metropolitan Transportation Authority, New York, Transportation Revenue Bonds, Series 2014D-1, 5.000%, 11/15/39	11/24 at 100.00	A+	971,253
250	New York Liberty Development Corporation, New York, Liberty Revenue Bonds, 4 World Trade Center Project, Series 2011, 5.000%, 11/15/44	11/21 at 100.00	A	259,402
980	New York Transportation Development Corporation, New York, Special Facilities Bonds, LaGuardia Airport Terminal B Redevelopment Project, Series 2016A, 5.000%, 7/01/46 (AMT)	7/24 at 100.00	BBB	1,055,519

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NXN	Nuveen New York Select Tax-Free Income Portfolio (continued)
	Portfolio of Investments June 30, 2020
	(Unaudited)

Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Transportation (continued)
	New York Transportation Development Corporation, New York, Special Facility Revenue Bonds, American Airlines, Inc John F Kennedy International Airport Project, Refunding Series 2016:
$200	5.000%, 8/01/26 (AMT)	8/21 at 100.00	BB-	$200,658
830	5.000%, 8/01/31 (AMT)	8/21 at 100.00	BB-	831,436
30	New York Transportation Development Corporation, New York, Special Facility Revenue Bonds, American Airlines, Inc John F Kennedy International Airport Project, Series 2020, 5.375%, 8/01/36 (AMT)	8/30 at 100.00	BB-	31,049
	New York Transportation Development Corporation, New York, Special Facility Revenue Bonds, Delta Air Lines, Inc - LaGuardia Airport Terminals C&D Redevelopment Project, Series 2018:
700	5.000%, 1/01/28 (AMT)	No Opt. Call	Baa3	751,156
300	5.000%, 1/01/31 (AMT)	1/28 at 100.00	Baa3	321,924
1,000	Port Authority of New York and New Jersey, Consolidated Revenue Bonds, One Hundred Ninety-Fourth Series 2015, 5.250%, 10/15/55	10/25 at 100.00	Aa3	1,163,890
1,500	Port Authority of New York and New Jersey, Consolidated Revenue Bonds, Two Hundred Eleventh Series 2018, 5.000%, 9/01/48	9/28 at 100.00	Aa3	1,822,170
215	Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air Terminal LLC Project, Eighth Series 2010, 6.000%, 12/01/36	12/20 at 100.00	Baa1	216,718
290	Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air Terminal LLC Project, Eigth Series 2010, 6.500%, 12/01/28	7/20 at 100.00	Baa1	292,323
1,000	Triborough Bridge and Tunnel Authority, New York, General Purpose Revenue Bonds, MTA Bridges & Tunnels, Refunding Series 2017B, 5.000%, 11/15/36	5/27 at 100.00	AA-	1,206,960
1,095	Triborough Bridge and Tunnel Authority, New York, General Purpose Revenue Bonds, MTA Bridges & Tunnels, Series 2017A, 5.000%, 11/15/47	5/27 at 100.00	AA-	1,293,545
9,290	Total Transportation			10,418,003
	U.S. Guaranteed – 6.8% (5)
1,240	Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Senior Fiscal 2012 Series 2011A, 5.750%, 2/15/47 (Pre-refunded 2/15/21)	2/21 at 100.00	Aa2	1,282,420
400	Long Island Power Authority, New York, Electric System Revenue Bonds, Series 2011A, 5.000%, 5/01/38 (Pre-refunded 5/01/21)	5/21 at 100.00	A	415,580
2,000	Monroe County Industrial Development Corporation, New York, Revenue Bonds, University of Rochester Project, Series 2011B, 5.000%, 7/01/41 (Pre-refunded 7/01/21)	7/21 at 100.00	AA-	2,094,140
3,640	Total U.S. Guaranteed			3,792,140
	Utilities – 7.4%
35	Guam Power Authority, Revenue Bonds, Series 2012A, 5.000%, 10/01/34	10/22 at 100.00	BBB	36,510
50	Long Island Power Authority, New York, Electric System General Revenue Bonds, Series 2014A, 5.000%, 9/01/44	9/24 at 100.00	A	57,314
180	Long Island Power Authority, New York, Electric System General Revenue Bonds, Series 2017, 5.000%, 9/01/47	9/27 at 100.00	A	215,168
150	Niagara Area Development Corporation, New York, Solid Waste Disposal Facility Revenue Refunding Bonds, Covanta Energy Project, Series 2018A, 4.750%, 11/01/42 (AMT), 144A	7/23 at 100.00	B1	151,585

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Principal Amount (000)	Description (1)	Optional Call Provisions (2)	Ratings (3)	Value
	Utilities (continued)
$1,365	Utility Debt Securitization Authority, New York, Restructuring Bonds, Series 2013TE, 5.000%, 12/15/41	12/23 at 100.00	AAA	$1,545,767
1,750	Utility Debt Securitization Authority, New York, Restructuring Bonds, Series 2016B, 5.000%, 12/15/35	6/26 at 100.00	AAA	2,123,800
3,530	Total Utilities			4,130,144
	Water and Sewer – 9.8%
200	Buffalo Municipal Water Finance Authority, New York, Water System Revenue Bonds, Refunding Series 2015A, 5.000%, 7/01/29	7/25 at 100.00	A+	239,084
3,000	New York City Municipal Water Finance Authority, New York, Water and Sewer System Second General Resolution Revenue Bonds, Fiscal 2018 Series EE, 5.000%, 6/15/40	12/27 at 100.00	AA+	3,732,930
1,000	New York State Environmental Facilities Corporation, State Clean Water and Drinking Water Revolving Funds Revenue Bonds, New York City Municipal Water Finance Authority Projects-Second Resolution Bonds,, 5.000%, 6/15/42	6/27 at 100.00	AAA	1,228,760
55	Puerto Rico Aqueduct and Sewerage Authority, Revenue Bonds, Senior Lien Series 2008A, 6.000%, 7/01/44	7/20 at 100.00	CC	55,963
	Puerto Rico Aqueduct and Sewerage Authority, Revenue Bonds, Senior Lien Series 2012A:
25	5.500%, 7/01/28	7/22 at 100.00	CC	26,500
100	5.750%, 7/01/37	7/22 at 100.00	CC	103,750
80	6.000%, 7/01/47	7/22 at 100.00	CC	83,200
4,460	Total Water and Sewer			5,470,187
$46,985	Total Long-Term Investments (cost $49,289,212)			52,565,904
	Other Assets Less Liabilities – 5.6%			3,119,328
	Net Assets Applicable to Common Shares – 100%			$55,685,232

Part F of Form N-PORT was prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and in conformity with the applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) related to interim filings. Part F of Form N-PORT does not include all information and footnotes required by U.S. GAAP for complete financial statements. Certain footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from this report pursuant to the rules of the SEC. For a full set of the Fund’s notes to financial statements, please refer to the Fund’s most recently filed annual or semi-annual report.

Fair Value Measurements

The Fund's investments in securities are recorded at their estimated fair value. Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.

Level 1  –     Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.

Level 2  –     Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.).

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NXN	Nuveen New York Select Tax-Free Income Portfolio (continued)
	Portfolio of Investments June 30, 2020
	(Unaudited)

Level 3  –     Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).

The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:

	Level 1	Level 2	Level 3	Total
Long-Term Investments:
Municipal Bonds	$ —	$52,565,904	$ —	$52,565,904

(1)	All percentages shown in the Portfolio of Investments are based on net assets applicable to common shares unless otherwise noted.
(2)	Optional Call Provisions: Dates (month and year) and prices of the earliest optional call or redemption. There may be other call provisions at varying prices at later dates. Certain mortgage-backed securities may be subject to periodic principal paydowns.
(3)	For financial reporting purposes, the ratings disclosed are the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.
(4)	Step-up coupon bond, a bond with a coupon that increases ("steps up"), usually at regular intervals, while the bond is outstanding. The rate shown is the coupon as of the end of the reporting period.
(5)	Backed by an escrow or trust containing sufficient U.S. Government or U.S. Government agency securities, which ensure the timely payment of principal and interest.
144A	Investment is exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These investments may only be resold in transactions exempt from registration, which are normally those transactions with qualified institutional buyers.
AMT	Alternative Minimum Tax
IF	Inverse floating rate security issued by a tender option bond (“TOB”) trust, the interest rate on which varies inversely with the Securities Industry Financial Markets Association (SIFMA) short-term rate, which resets weekly, or a similar short-term rate, and is reduced by the expenses related to the TOB trust.

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