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MBS, CRT Securities and MSR Related Assets
6 Months Ended
Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]  
MBS, CRT Securities and MSR Related Assets
MBS, CRT Securities and MSR Related Assets
 
Agency and Non-Agency MBS

The Company’s MBS are comprised of Agency MBS and Non-Agency MBS which include MBS issued prior to 2008 (“Legacy Non-Agency MBS”). These MBS are secured by:  (i) hybrid mortgages (“Hybrids”), which have interest rates that are fixed for a specified period of time and, thereafter, generally adjust annually to an increment over a specified interest rate index; (ii) adjustable-rate mortgages (“ARMs”), which have interest rates that reset annually or more frequently (collectively, “ARM-MBS”); and (iii) 15 and 30 year fixed-rate mortgages for Agency MBS and, for Non-Agency MBS, 30-year and longer-term fixed rate mortgages. In addition, the Company’s MBS are also comprised of MBS backed by securitized re-performing/non-performing loans (“RPL/NPL MBS”), where the cash flows of the bond may not reflect the contractual cash flows of the underlying collateral. The Company’s RPL/NPL MBS are generally structured with a contractual coupon step-up feature where the coupon increases up to 300 basis points at 36 months from issuance or sooner. The Company pledges a significant portion of its MBS as collateral against its borrowings under repurchase agreements and Swaps.  (See Note 7)
 
Agency MBS:  Agency MBS are guaranteed as to principal and/or interest by a federally chartered corporation, such as Fannie Mae or Freddie Mac, or an agency of the U.S. Government, such as Ginnie Mae.  The payment of principal and/or interest on Ginnie Mae MBS is explicitly backed by the full faith and credit of the U.S. Government.  Since the third quarter of 2008, Fannie Mae and Freddie Mac have been under the conservatorship of the Federal Housing Finance Agency, which significantly strengthened the backing for these government-sponsored entities.
 
Non-Agency MBS:  The Company’s Non-Agency MBS are primarily secured by pools of residential mortgages, which are not guaranteed by an agency of the U.S. Government or any federally chartered corporation.  Credit risk associated with Non-Agency MBS is regularly assessed as new information regarding the underlying collateral becomes available and based on updated estimates of cash flows generated by the underlying collateral.
 
CRT Securities

CRT securities are debt obligations issued by Fannie Mae and Freddie Mac. The payments of principal and interest on the CRT securities are paid by Fannie Mae or Freddie Mac, as the case may be, on a monthly basis, and are dependent on the performance of loans in a reference pool of Agency MBS securitized by the issuing entity. As an investor in a CRT security, the Company may incur a loss if losses on the mortgage loans in the reference pool exceed the credit enhancement on the underlying CRT security owned by the Company. The Company assesses the credit risk associated with CRT securities by assessing the current and expected future performance of the associated reference pool. The Company pledges a portion of its CRT securities as collateral against its borrowings under repurchase agreements.  (See Note 7)


The following tables present certain information about the Company’s MBS and CRT securities at June 30, 2018 and December 31, 2017:
 
June 30, 2018
(In Thousands)
 
Principal/ Current
Face
 
Purchase
Premiums
 
Accretable
Purchase
Discounts
 
Discount
Designated
as Credit Reserve and 
OTTI (1)
 
Amortized
Cost (2)
 
Fair Value
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Net
Unrealized
Gain/(Loss)
Agency MBS:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

Fannie Mae
 
$
1,874,754

 
$
71,870

 
$
(34
)
 
$

 
$
1,946,590

 
$
1,928,719

 
$
17,695

 
$
(35,566
)
 
$
(17,871
)
Freddie Mac
 
428,102

 
17,080

 

 

 
446,360

 
428,465

 
1,100

 
(18,995
)
 
(17,895
)
Ginnie Mae
 
5,557

 
101

 

 

 
5,658

 
5,713

 
56

 
(1
)
 
55

Total Agency MBS
 
2,308,413

 
89,051

 
(34
)
 

 
2,398,608

 
2,362,897

 
18,851

 
(54,562
)
 
(35,711
)
Non-Agency MBS:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Expected to Recover Par (3)(4)
 
1,122,973

 
43

 
(27,359
)
 

 
1,095,657

 
1,123,299

 
28,736

 
(1,094
)
 
27,642

Expected to Recover Less than Par (3)
 
2,298,626

 

 
(174,889
)
 
(553,596
)
 
1,570,141

 
2,119,668

 
549,719

 
(192
)
 
549,527

Total Non-Agency MBS (5)
 
3,421,599

 
43

 
(202,248
)
 
(553,596
)
 
2,665,798

 
3,242,967

 
578,455

 
(1,286
)
 
577,169

Total MBS
 
5,730,012

 
89,094

 
(202,282
)
 
(553,596
)
 
5,064,406

 
5,605,864

 
597,306

 
(55,848
)
 
541,458

CRT securities (6)
 
520,688

 
9,825

 
(1,830
)
 

 
528,683

 
571,955

 
43,365

 
(93
)
 
43,272

Total MBS and CRT securities
 
$
6,250,700

 
$
98,919

 
$
(204,112
)
 
$
(553,596
)
 
$
5,593,089

 
$
6,177,819

 
$
640,671

 
$
(55,941
)
 
$
584,730


December 31, 2017
(In Thousands)
 
Principal/ Current
Face
 
Purchase
Premiums
 
Accretable
Purchase
Discounts
 
Discount
Designated
as Credit Reserve and 
OTTI (1)
 
Amortized
Cost (2)
 
Fair Value
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Net
Unrealized
Gain/(Loss)
Agency MBS:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

Fannie Mae
 
$
2,170,974

 
$
82,271

 
$
(40
)
 
$

 
$
2,253,205

 
$
2,246,600

 
$
21,736

 
$
(28,341
)
 
$
(6,605
)
Freddie Mac
 
561,346

 
21,683

 

 

 
584,920

 
571,748

 
1,624

 
(14,796
)
 
(13,172
)
Ginnie Mae
 
6,142

 
112

 

 

 
6,254

 
6,333

 
79

 

 
79

Total Agency MBS
 
2,738,462

 
104,066

 
(40
)
 

 
2,844,379

 
2,824,681

 
23,439

 
(43,137
)
 
(19,698
)
Non-Agency MBS:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Expected to Recover Par (3)(4)
 
1,128,808

 
50

 
(22,737
)
 

 
1,106,121

 
1,132,205

 
26,518

 
(434
)
 
26,084

Expected to Recover Less than Par (3)
 
2,589,935

 

 
(192,588
)
 
(593,227
)
 
1,804,120

 
2,401,761

 
597,660

 
(19
)
 
597,641

Total Non-Agency MBS (5)
 
3,718,743

 
50

 
(215,325
)
 
(593,227
)
 
2,910,241

 
3,533,966

 
624,178

 
(453
)
 
623,725

Total MBS
 
6,457,205

 
104,116

 
(215,365
)
 
(593,227
)
 
5,754,620

 
6,358,647

 
647,617

 
(43,590
)
 
604,027

CRT securities (6)
 
602,799

 
8,887

 
(3,550
)
 

 
608,136

 
664,403

 
56,290

 
(23
)
 
56,267

Total MBS and CRT securities
 
$
7,060,004

 
$
113,003

 
$
(218,915
)
 
$
(593,227
)
 
$
6,362,756

 
$
7,023,050

 
$
703,907

 
$
(43,613
)
 
$
660,294

 
(1)
Discount designated as Credit Reserve and amounts related to OTTI are generally not expected to be accreted into interest income.  Amounts disclosed at June 30, 2018 reflect Credit Reserve of $540.7 million and OTTI of $12.9 million.  Amounts disclosed at December 31, 2017 reflect Credit Reserve of $579.0 million and OTTI of $14.2 million.
(2)
Includes principal payments receivable of $1.2 million and $1.9 million at June 30, 2018 and December 31, 2017, respectively, which are not included in the Principal/Current Face.
(3)
Based on managements current estimates of future principal cash flows expected to be received.
(4)
Includes RPL/NPL MBS, which at June 30, 2018 had a $909.3 million Principal/Current face, $907.5 million amortized cost and $907.9 million fair value. At December 31, 2017, RPL/NPL MBS had a $922.0 million Principal/Current face, $920.1 million amortized cost and $923.1 million fair value.
(5)
At both June 30, 2018 and December 31, 2017, the Company expected to recover approximately 84% of the then-current face amount of Non-Agency MBS, respectively.
(6)
Amounts disclosed at June 30, 2018 includes CRT securities with a fair value of $522.1 million for which the fair value option has been elected. Such securities had gross unrealized gains of approximately $37.3 million and gross unrealized losses of approximately $92,500 at June 30, 2018. Amounts disclosed at December 31, 2017 includes CRT securities with a fair value of $528.9 million for which the fair value option has been elected. Such securities had gross unrealized gains of approximately $40.5 million and gross unrealized losses of approximately $23,000 at December 31, 2017.
 


Sales of MBS and CRT Securities
 
During the three and six months ended June 30, 2018, the Company sold certain Agency MBS for $75.3 million realizing gross losses of $3.8 million. The Company also sold certain CRT securities during the three and six months ended June 30, 2018 for $104.0 million, realizing gross gains of $11.2 million. In addition, during the six months ended June 30, 2018, the Company sold certain Non-Agency MBS for $19.4 million, realizing gross gains of $8.8 million. During the three and six months ended June 30, 2017, the Company sold certain Non-Agency MBS for $16.9 million and $38.5 million, realizing gross gains of $5.9 million and $15.6 million, respectively. The Company has no continuing involvement with any of the sold MBS.

Unrealized Losses on MBS and CRT Securities

The following table presents information about the Company’s MBS and CRT securities that were in an unrealized loss position at June 30, 2018:
 
Unrealized Loss Position For:
 
 
Less than 12 Months
 
12 Months or more
 
Total
 
Fair Value
 
Unrealized Losses
 
Number of Securities
Fair Value
 
Unrealized Losses
 
Number of Securities
Fair Value
 
Unrealized Losses
(Dollars in Thousands)
Agency MBS:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

Fannie Mae
 
$
304,882

 
$
3,195

 
97

 
$
888,232

 
$
32,371

 
237

 
$
1,193,114

 
$
35,566

Freddie Mac
 
88,740

 
1,232

 
40

 
300,183

 
17,763

 
96

 
388,923

 
18,995

Ginnie Mae
 
672

 
1

 
3

 

 

 

 
672

 
1

Total Agency MBS
 
394,294

 
4,428

 
140

 
1,188,415

 
50,134

 
333

 
1,582,709

 
54,562

Non-Agency MBS:
 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

Expected to Recover Par (1)
 
278,307

 
971

 
14

 
8,174

 
123

 
8

 
286,481

 
1,094

Expected to Recover Less than Par (1)
 
15,728

 
192

 
4

 

 

 

 
15,728

 
192

Total Non-Agency MBS
 
294,035

 
1,163

 
18

 
8,174

 
123

 
8

 
302,209

 
1,286

Total MBS
 
688,329

 
5,591

 
158

 
1,196,589

 
50,257

 
341

 
1,884,918

 
55,848

CRT securities (2)
 
18,064

 
93

 
5

 

 

 

 
18,064

 
93

Total MBS and CRT securities
 
$
706,393

 
$
5,684

 
163

 
$
1,196,589

 
$
50,257

 
341

 
$
1,902,982

 
$
55,941



(1)
Based on management’s current estimates of future principal cash flows expected to be received.  
(2)
Amounts disclosed at June 30, 2018 represent CRT securities on which the fair value option has been elected.

At June 30, 2018, the Company did not intend to sell any of its investments that were in an unrealized loss position, and it is “more likely than not” that the Company will not be required to sell these securities before recovery of their amortized cost basis, which may be at their maturity. 
 
Gross unrealized losses on the Company’s Agency MBS were $54.6 million at June 30, 2018.  Agency MBS are issued by Government Sponsored Entities (“GSEs”) and enjoy either the implicit or explicit backing of the full faith and credit of the U.S. Government. While the Company’s Agency MBS are not rated by any rating agency, they are currently perceived by market participants to be of high credit quality, with risk of default limited to the unlikely event that the U.S. Government would not continue to support the GSEs. Given the credit quality inherent in Agency MBS, the Company does not consider any of the current impairments on its Agency MBS to be credit related. In assessing whether it is more likely than not that it will be required to sell any impaired security before its anticipated recovery, which may be at its maturity, the Company considers for each impaired security, the significance of each investment, the amount of impairment, the projected future performance of such impaired securities, as well as the Company’s current and anticipated leverage capacity and liquidity position. Based on these analyses, the Company determined that at June 30, 2018 any unrealized losses on its Agency MBS were temporary.

Gross unrealized losses on the Company’s Non-Agency MBS were $1.3 million at June 30, 2018. Based upon the most recent evaluation, the Company does not consider these unrealized losses to be indicative of OTTI and does not believe that these unrealized losses are credit related, but are rather a reflection of current market yields and/or marketplace bid-ask spreads.  The Company has reviewed its Non-Agency MBS that are in an unrealized loss position to identify those securities with losses that are other-than-temporary based on an assessment of changes in expected cash flows for such securities, which considers recent bond performance and, where possible, expected future performance of the underlying collateral.
  
The Company did not recognize any credit-related OTTI losses through earnings related to its Non-Agency MBS during the three and six months ended June 30, 2018. The Company recognized credit-related OTTI losses through earnings related to its Non-Agency MBS of $618,000 and $1.0 million during the three and six months ended June 30, 2017.

Non-Agency MBS on which OTTI is recognized have experienced, or are expected to experience, credit-related adverse cash flow changes.  The Company’s estimate of cash flows for these Non-Agency MBS is based on its review of the underlying mortgage loans securing these MBS.  The Company considers information available about the structure of the securitization, including structural credit enhancement, if any, and the past and expected future performance of underlying mortgage loans, including timing of expected future cash flows, prepayment rates, default rates, loss severities, delinquency rates, percentage of non-performing loans, year of origination, LTVs, geographic concentrations, as well as Rating Agency reports, general market assessments, and dialogue with market participants.  Changes in the Company’s evaluation of each of these factors impacts the cash flows expected to be collected at the OTTI assessment date. For Non-Agency MBS purchased at a discount to par that were assessed for and had no OTTI recorded this period, such cash flow estimates indicated that the amount of expected losses decreased compared to the previous OTTI assessment date. These positive cash flow changes are primarily driven by recent improvements in LTVs due to loan amortization and home price appreciation, which, in turn, positively impacts the Company’s estimates of default rates and loss severities for the underlying collateral. In addition, voluntary prepayments (i.e., loans that prepay in full with no loss) have generally trended higher relative to the Company’s assumptions for these MBS which also positively impacts the Company’s estimate of expected loss. Overall, the combination of higher voluntary prepayments and lower LTVs supports the Company’s assessment that such MBS are not other-than-temporarily impaired.

The following table presents the composition of OTTI charges recorded by the Company for the three and six months ended June 30, 2018 and 2017:
 
 
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
(In Thousands)
 
2018
 
2017
 
2018
 
2017
Total OTTI losses
 
$

 
$

 
$

 
$
(63
)
OTTI reclassified from OCI
 

 
(618
)
 

 
(969
)
OTTI recognized in earnings
 
$

 
$
(618
)
 
$

 
$
(1,032
)


The following table presents a roll-forward of the credit loss component of OTTI on the Company’s Non-Agency MBS for which a non-credit component of OTTI was previously recognized in OCI.  Changes in the credit loss component of OTTI are presented based upon whether the current period is the first time OTTI was recorded on a security or a subsequent OTTI charge was recorded.
 
 
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
(In Thousands)
 
2018
 
2018
Credit loss component of OTTI at beginning of period
 
$
38,337

 
$
38,337

Additions for credit related OTTI not previously recognized
 

 

Subsequent additional credit related OTTI recorded
 

 

Credit loss component of OTTI at end of period
 
$
38,337

 
$
38,337



Purchase Discounts on Non-Agency MBS
 
The following tables present the changes in the components of the Company’s purchase discount on its Non-Agency MBS between purchase discount designated as Credit Reserve and OTTI and accretable purchase discount for the three and six months ended June 30, 2018 and 2017:

 
 
Three Months Ended 
 June 30, 2018
 
Three Months Ended 
 June 30, 2017
(In Thousands)
 
Discount
Designated as
Credit Reserve and OTTI
 
Accretable
Discount
(1) 
Discount
Designated as
Credit Reserve and OTTI
 
 Accretable Discount (1)
Balance at beginning of period
 
$
(572,580
)
 
$
(199,659
)
 
$
(653,337
)
 
$
(269,724
)
Impact of RMBS Issuer Settlement (2)
 

 
(12,089
)
 

 

Accretion of discount
 

 
17,530

 

 
20,223

Realized credit losses
 
10,954

 

 
13,139

 

Purchases
 

 

 
(484
)
 
(1,520
)
Sales
 

 

 
5,037

 
2,819

Net impairment losses recognized in earnings
 

 

 
(618
)
 

Transfers/release of credit reserve
 
8,030

 
(8,030
)
 
9,765

 
(9,765
)
Balance at end of period
 
$
(553,596
)
 
$
(202,248
)
 
$
(626,498
)
 
$
(257,967
)

 
 
Six Months Ended 
 June 30, 2018
 
Six Months Ended 
 June 30, 2017
(In Thousands)
 
Discount
Designated as
Credit Reserve and OTTI
 
Accretable
Discount
(1) 
Discount
Designated as
Credit Reserve and OTTI
 
 Accretable Discount (1)
Balance at beginning of period
 
$
(593,227
)
 
$
(215,325
)
 
$
(694,241
)
 
$
(278,191
)
Impact of RMBS Issuer Settlement (2)
 

 
(12,089
)
 

 

Accretion of discount
 

 
34,746

 

 
41,840

Realized credit losses
 
19,401

 

 
25,463

 

Purchases
 
(535
)
 
488

 
(484
)
 
(1,520
)
Sales
 
5,592

 
5,105

 
24,778

 
(1,078
)
Net impairment losses recognized in earnings
 

 

 
(1,032
)
 

Transfers/release of credit reserve
 
15,173

 
(15,173
)
 
19,018

 
(19,018
)
Balance at end of period
 
$
(553,596
)
 
$
(202,248
)
 
$
(626,498
)
 
$
(257,967
)

(1)
Together with coupon interest, accretable purchase discount is recognized as interest income over the life of the security.
(2)
Includes the impact of approximately $12.1 million of cash proceeds (a one-time payment) received by the Company during the three months ended June 30, 2018 in connection with the settlement of litigation related to certain residential mortgage backed securitization trusts that were sponsored by JP Morgan Chase & Co. and affiliated entities.

MSR Related Assets

(a) Term Notes Backed by MSR Related Collateral

At June 30, 2018 and December 31, 2017, the Company had $381.4 million and $381.8 million, respectively, of term notes issued by SPVs that have acquired rights to receive cash flows representing the servicing fees and/or excess servicing spread associated with certain MSRs. Payment of principal and interest on these term notes is considered to be largely dependent on cash flows generated by the underlying MSRs, as this impacts the cash flows available to the SPV that issued the term notes.

At June 30, 2018, these term notes had an amortized cost of $380.4 million, gross unrealized gains of $1.0 million, a weighted average yield of 5.56% and a weighted average term to maturity of 4.1 years. At December 31, 2017, the term notes had an amortized cost of $381.0 million, gross unrealized gains of $804,000, a weighted average yield of 5.80% and a weighted average term to maturity of 3.4 years.

(b) Corporate Loan

In December 2016, the Company entered into a loan agreement with an entity that originates loans and owns the related MSRs. The loan was secured by certain U.S. Government, Agency and private-label MSRs, as well as other unencumbered assets owned by the borrower. Under the terms of the loan agreement, the Company committed to lend $130.0 million of which approximately $124.2 million was drawn at March 31, 2018, and which was paid in full as of June 30, 2018. For the three and six months ended June 30, 2018, the Company recognized interest income of $1.2 million and $3.7 million including discount accretion and commitment fee income of $1.1 million and $1.2 million, respectively. In addition, the Company recorded $136,000 of Other Income consisting of deferred commitment fees recognized upon repayment of the loan during the three months ended June 30, 2018. For the three and six months ended June 30, 2017, the Company recognized interest income of approximately $2.0 million and $3.7 million including discount accretion and commitment fee income of approximately $73,000 and $135,000, respectively.

Impact of AFS Securities on AOCI
 
The following table presents the impact of the Company’s AFS securities on its AOCI for the three and six months ended June 30, 2018 and 2017:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(In Thousands)
2018
 
2017
 
2018
 
2017
AOCI from AFS securities:
 
 

 
 

 
 

 
 

Unrealized gain on AFS securities at beginning of period
 
$
574,485

 
$
629,487

 
$
620,648

 
$
620,403

Unrealized loss on Agency MBS, net
 
(9,641
)
 
(11,157
)
 
(18,331
)
 
(19,209
)
Unrealized (loss)/gain on Non-Agency MBS, net
 
(11,115
)
 
56,167

 
(38,308
)
 
83,663

Reclassification adjustment for MBS sales included in net income
 
(5,178
)
 
(5,656
)
 
(15,458
)
 
(15,602
)
Reclassification adjustment for OTTI included in net income
 

 
(618
)
 

 
(1,032
)
Change in AOCI from AFS securities
 
(25,934
)
 
38,736

 
(72,097
)
 
47,820

Balance at end of period
 
$
548,551

 
$
668,223

 
$
548,551

 
$
668,223

 
Interest Income on MBS, CRT Securities and MSR Related Assets
 
The following table presents the components of interest income on the Company’s MBS, CRT securities and MSR related assets for the three and six months ended June 30, 2018 and 2017
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(In Thousands)
 
2018
 
2017
 
2018
 
2017
Agency MBS
 
 
 
 
 
 
 
 
Coupon interest
 
$
20,040

 
$
24,904

 
$
40,997

 
$
51,117

Effective yield adjustment (1)
 
(6,870
)
 
(8,317
)
 
(12,534
)
 
(16,636
)
Interest income
 
$
13,170

 
$
16,587

 
$
28,463

 
$
34,481

 
 
 
 
 
 
 
 
 
Legacy Non-Agency MBS
 
 
 
 
 
 
 
 
Coupon interest
 
$
27,931

 
$
32,444

 
$
56,765

 
$
67,108

Effective yield adjustment (2)
 
17,462

 
19,586

 
34,664

 
41,028

Interest income
 
$
45,393

 
$
52,030

 
$
91,429

 
$
108,136

 
 
 
 
 
 
 
 
 
RPL/NPL MBS
 
 
 
 
 
 
 
 
Coupon interest
 
$
9,588

 
$
17,601

 
$
19,641

 
$
40,529

Effective yield adjustment (1)
 
62

 
638

 
75

 
812

Interest income
 
$
9,650

 
$
18,239

 
$
19,716

 
$
41,341

 
 
 
 
 
 
 
 
 
CRT securities
 
 
 
 
 
 
 
 
Coupon interest
 
$
7,854

 
$
6,586

 
$
16,227

 
$
11,843

Effective yield adjustment (2)
 
841

 
1,260

 
1,964

 
2,379

Interest income
 
$
8,695

 
$
7,846

 
$
18,191

 
$
14,222

 
 
 
 
 
 
 
 
 
MSR related assets
 
 
 
 
 
 
 
 
Coupon interest
 
$
5,081

 
$
5,832

 
$
12,598

 
$
10,505

Effective yield adjustment (1)
 
1,138

 
73

 
1,244

 
134

Interest income
 
$
6,219

 
$
5,905

 
$
13,842

 
$
10,639


 
(1)  Includes amortization of premium paid net of accretion of purchase discount.  For Agency MBS, RPL/NPL MBS and the corporate loan secured by MSRs, interest income is recorded at an effective yield, which reflects net premium amortization/accretion based on actual prepayment activity.
(2) The effective yield adjustment is the difference between the net income calculated using the net yield, which is based on management’s estimates of the amount and timing of future cash flows, less the current coupon yield.