v3.26.1
Mortgage-Backed Securities
6 Months Ended
Jun. 30, 2026
Investments, Debt and Equity Securities [Abstract]  
Mortgage-Backed Securities Mortgage-Backed Securities
The Company classifies its Non-Agency RMBS as senior, subordinated, or interest-only. The Company also invests in Agency MBS which it classifies as Agency RMBS, to include residential and residential interest-only MBS, Pass-through securities, residential CMO, and Agency CMBS to include commercial and commercial interest-only MBS. Senior interests in Non-Agency RMBS are generally entitled to the first principal repayments in their pro-rata ownership interests at the acquisition date. The tables below present amortized cost, allowance for credit losses, fair value and unrealized gains/losses of the Company's MBS investments as of June 30, 2026 and December 31, 2025.
June 30, 2026
(dollars in thousands)
Principal or Notional ValueTotal PremiumTotal DiscountAmortized CostAllowance for Credit LossFair ValueGross Unrealized GainsGross Unrealized LossesNet Unrealized Gain/(Loss)
Non-Agency RMBS
Senior$827,607 $37,806 $(465,642)$399,771 $(53,041)$467,711 $124,810 $(3,829)$120,981 
Subordinated394,670 1,749 (217,076)179,343 (219)191,732 22,208 (9,600)12,608 
Interest-only2,327,935 142,283 — 142,283 — 68,178 12,081 (86,186)(74,105)
Agency RMBS
Pass-through5,041,259 53,166 (91,662)5,002,763 — 5,014,494 23,854 (12,123)11,731 
CMO231,192 — (161)231,031 — 232,652 1,621 — 1,621 
Agency CMBS
ACMBS bond17,905 — (406)17,499 — 17,413 — (86)(86)
Total$8,840,568 $235,004 $(774,947)$5,972,690 $(53,260)$5,992,180 $184,574 $(111,824)$72,750 
December 31, 2025
(dollars in thousands)
Principal or Notional ValueTotal PremiumTotal DiscountAmortized CostAllowance for Credit LossFair ValueGross Unrealized GainsGross Unrealized LossesNet Unrealized Gain/(Loss)
Non-Agency RMBS
Senior$852,887 $31,697 $(478,409)$406,175 $(41,342)$505,004 $143,580 $(3,409)$140,171 
Subordinated453,269 1,852 (231,167)223,954 (1,901)233,315 22,925 (11,663)11,262 
Interest-only2,428,976 146,461 — 146,461 — 78,961 13,286 (80,786)(67,500)
Agency RMBS
Pass-through3,096,299 21,495 (89,999)3,027,795 — 3,081,573 54,015 (237)53,778 
CMO330,871 — (186)330,685 — 331,909 1,357 (133)1,224 
Interest-only367,866 18,637 — 18,637 — 14,867 65 (3,835)(3,770)
Agency CMBS
Project loans39,693 602 — 40,295 — 32,539 — (7,756)(7,756)
Interest-only123,375 3,295 — 3,295 — 2,597 132 (830)(698)
Total$7,693,236 $224,039 $(799,761)$4,197,297 $(43,243)$4,280,765 $235,360 $(108,649)$126,711 

The following tables present the gross unrealized losses and estimated fair value of the Company’s Non-Agency MBS by length of time that such securities have been in a continuous unrealized loss position at June 30, 2026 and December 31, 2025. All Non-Agency RMBS held as available-for-sale, and not accounted under the fair value option election in an unrealized loss position, have been evaluated by the Company for current expected credit losses.
June 30, 2026
(dollars in thousands)
Unrealized Loss Position for Less than 12 MonthsUnrealized Loss Position for 12 Months or MoreTotal
Estimated Fair ValueUnrealized LossesNumber of PositionsEstimated Fair ValueUnrealized LossesNumber of PositionsEstimated Fair ValueUnrealized LossesNumber of Positions
Non-Agency RMBS
Senior$22,861 $(437)$18,082 $(3,392)$40,943 $(3,829)10 
Subordinated5,257 (476)66,552 (9,124)1271,809 (9,600)14
Interest-only6,114 (532)1136,442 (85,654)12642,556 (86,186)137
Agency RMBS
Pass-through2,490,185 (12,123)104— — — 2,490,185 (12,123)104
CMO— — — — — — — 
Agency CMBS
ACMBS bond17,414 (86)— — 17,414 (86)2
Total$2,541,831 $(13,654)124$121,076 $(98,170)143$2,662,907 $(111,824)267 
December 31, 2025
(dollars in thousands)
Unrealized Loss Position for Less than 12 MonthsUnrealized Loss Position for 12 Months or MoreTotal
Estimated Fair ValueUnrealized LossesNumber of PositionsEstimated Fair ValueUnrealized LossesNumber of PositionsEstimated Fair ValueUnrealized LossesNumber of Positions
Non-Agency RMBS
Senior$15,408 $(266)$16,902 $(3,143)$32,311 $(3,409)
Subordinated8,492 (144)81,581 (11,519)1490,073 (11,663)17 
Interest-only1,297 (22)44,675 (80,764)12645,972 (80,786)130 
Agency RMBS
Pass-through147,898 (237)— — 147,898 (237)
CMO57,000 (133)— — — 57,000 (133)
Interest-only8,302 (203)2,928 (3,632)11,229 (3,835)10 
Agency CMBS
Project loans4,245 (798)28,295 (6,958)3132,540 (7,756)33 
Interest-only— — — 1,154 (830)11,154 (830)
Total$242,642 $(1,803)27$175,535 $(106,846)181$418,177 $(108,649)208 

At June 30, 2026, the Company did not intend to sell any of its Agency and Non-Agency MBS classified as available-for-sale that were in an unrealized loss position, and it was not more likely than not that the Company would be required to sell these MBS investments before recovery of their amortized cost basis, which may be at their maturity. During the six months ended June 30, 2026, the Company sold certain securities, resulting in reductions to the unrealized losses associated with these securities totaling $3 million. With respect to RMBS held by consolidated VIEs, the ability of any entity to cause the sale by the VIE prior to the maturity of these RMBS is either expressly prohibited, not probable, or is limited to specified events of default, none of which have occurred as of June 30, 2026.

Gross unrealized losses on the Company’s Non-Agency RMBS (excluding Non-Agency RMBS which are reported at fair value with changes in fair value recorded in earnings), net of any allowance for credit losses, were $5 million and $7 million, at June 30, 2026 and December 31, 2025, respectively. After evaluating the securities and recording any allowance for credit losses, the Company concluded that the remaining unrealized losses reflected above were non-credit related and would be recovered from the securities' estimated future cash flows. The Company considered a number of factors in reaching this conclusion, including that it did not intend to sell the securities, it was not considered more likely than not that it would be required to sell the securities prior to recovering the amortized cost, and there were no material credit events that would have caused the Company to otherwise conclude that it would not recover the amortized cost. The allowance for credit losses is calculated by comparing the estimated future cash flows of each security discounted at the yield determined as of the initial acquisition date or, if since revised, as of the last date previously revised, to the net amortized cost basis. Significant judgment is used in projecting cash flows for Non-Agency RMBS.
The Company has reviewed its Non-Agency RMBS that are in an unrealized loss position to identify those securities with losses that are credit related based on an assessment of changes in cash flows expected to be collected for such RMBS, which considers recent bond performance and expected future performance of the underlying collateral. A summary of the credit losses allowance on available-for-sale securities for the quarters and six months ended June 30, 2026 and June 30, 2025 are presented below.
For the Quarter EndedFor the Six Months Ended
June 30, 2026June 30, 2025June 30, 2026June 30, 2025
(dollars in thousands)(dollars in thousands)
Beginning allowance for credit losses$46,067 $31,785 $43,243 $28,397 
Additions to the allowance for credit losses on securities for which credit losses were not previously recorded1,620 144 1,758 337 
Reductions for the securities sold during the period — — (2,247)— 
Increase/(decrease) on securities with an allowance in the prior period5,616 4,539 10,689 8,019 
Write-offs charged against the allowance(189)(284)(354)(589)
Recoveries of amounts previously written off146 10 171 30 
Ending allowance for credit losses$53,260 $36,194 $53,260 $36,194 

The following table presents significant credit quality indicators used for the credit loss allowance on our Non-Agency RMBS investments as of June 30, 2026 and December 31, 2025.
June 30, 2026
(dollars in thousands)
Prepay RateCDRLoss Severity
Amortized CostWeighted AverageWeighted AverageWeighted Average
Non-Agency RMBS
Senior$194,542 6.3%1.1%29.1%
Subordinated$2,251 6.0%1.1%31.1%
December 31, 2025
(dollars in thousands)
Prepay RateCDRLoss Severity
Amortized CostWeighted AverageWeighted AverageWeighted Average
Non-Agency RMBS
Senior$152,299 6.9%1.4%29.8%
Subordinated$20,688 6.3%0.3%48.4%

The increase in the allowance for credit losses during the quarter and six months ended June 30, 2026, is primarily due to a deterioration in cashflows on certain investments, compared to the same period of 2025. In addition, certain Non-Agency RMBS positions now have higher unrealized losses and resulted in the recognition of an allowance for credit losses which was previously limited by unrealized gains on these investments.

The following tables present a summary of unrealized gains and losses at June 30, 2026 and December 31, 2025.
June 30, 2026
(dollars in thousands)
Gross Unrealized Gain Included in Accumulated Other Comprehensive IncomeGross Unrealized Gain Included in Cumulative EarningsTotal Gross Unrealized GainGross Unrealized Loss Included in Accumulated Other Comprehensive IncomeGross Unrealized Loss Included in Cumulative EarningsTotal Gross Unrealized Loss
Non-Agency RMBS
Senior$124,810 $— $124,810 $(3,829)$— $(3,829)
Subordinated8,728 13,480 22,208 (725)(8,875)(9,600)
Interest-only— 12,081 12,081 — (86,186)(86,186)
Agency RMBS
Pass-through— 23,854 23,854 — (12,123)(12,123)
CMO— 1,621 1,621 — — — 
Agency CMBS
ACMBS bond— — — — (86)(86)
Total$133,538 $51,036 $184,574 $(4,554)$(107,270)$(111,824)
December 31, 2025
(dollars in thousands)
Gross Unrealized Gain Included in Accumulated Other Comprehensive IncomeGross Unrealized Gain Included in Cumulative EarningsTotal Gross Unrealized GainGross Unrealized Loss Included in Accumulated Other Comprehensive IncomeGross Unrealized Loss Included in Cumulative EarningsTotal Gross Unrealized Loss
Non-Agency RMBS
Senior$143,580 $— $143,580 $(3,409)$— $(3,409)
Subordinated9,519 13,406 22,925 (3,395)(8,268)(11,663)
Interest-only— 13,286 13,286 — (80,786)(80,786)
Agency RMBS
Pass-through— 54,015 54,015 — (237)(237)
CMO— 1,357 1,357 — (133)(133)
Interest-only— 65 65 — (3,835)(3,835)
Agency CMBS
Project loans— — — — (7,756)(7,756)
Interest-only— 132 132 — (830)(830)
Total$153,099 $82,261 $235,360 $(6,804)$(101,845)$(108,649)

Changes in prepayments, actual cash flows, and cash flows expected to be collected, among other items, are affected by the collateral characteristics of each asset class. The Company chooses assets for the portfolio after carefully evaluating each investment’s risk profile.

The following tables provide a summary of the Company’s MBS portfolio at June 30, 2026 and December 31, 2025.
June 30, 2026
Principal or Notional Value
at Period-End
(dollars in thousands)
Weighted Average Amortized
Cost Basis
Weighted Average Fair ValueWeighted Average
Coupon
Weighted Average Yield at Period-End (1)
Non-Agency RMBS
Senior$827,607 $41.90 $56.51 5.6 %21.3 %
Subordinated394,670 45.39 48.58 3.9 %9.2 %
Interest-only2,327,935 6.11 2.93 0.9 %3.8 %
Agency RMBS
Pass-through5,041,259 99.24 99.47 5.3 %5.3 %
CMO231,192 99.93 100.63 4.9 %4.9 %
Agency CMBS
ACMBS bond17,905 97.74 97.26 4.1 %4.4 %
(1) Bond Equivalent Yield at period end.
December 31, 2025
Principal or Notional Value at Period-End
(dollars in thousands)
Weighted Average Amortized
Cost Basis
Weighted Average Fair ValueWeighted Average
Coupon
Weighted Average Yield at Period-End (1)
Non-Agency RMBS
Senior$852,887 $42.78 $59.21 5.7 %20.3 %
Subordinated453,269 48.99 51.47 4.2 %9.3 %
Interest-only2,428,976 6.03 3.25 0.8 %4.4 %
Agency RMBS
Pass-through3,096,299 97.79 99.52 5.0 %5.3 %
CMO
330,871 99.94 100.31 5.1 %5.1 %
Interest-only
367,866 5.07 4.04 0.6 %6.5 %
Agency CMBS
Project loans39,693 101.52 81.98 3.4 %3.3 %
Interest-only123,375 2.67 2.11 0.7 %13.0 %
(1) Bond Equivalent Yield at period end.

Actual maturities of MBS are generally shorter than the stated contractual maturities. Actual maturities of the Company’s MBS are affected by the underlying mortgages, periodic payments of principal, realized losses and prepayments of principal. The following tables provide a summary of the fair value and amortized cost of the Company’s MBS at June 30, 2026 and December 31, 2025 according to their estimated weighted-average life classifications. The weighted-average lives of the MBS in the tables below are based on lifetime expected prepayment rates using the Company's prepayment assumptions for the Agency MBS and Non-Agency RMBS. The prepayment model considers a variety of factors, including but not limited to current interest rates, forward interest rate projections, shape and steepness of the interest rate curve, current mortgage rates, mortgage rates of the outstanding loan, and other borrower, loan, property, or market-related characteristics that may influence prepayment behavior.
June 30, 2026
 (dollars in thousands) 
Weighted Average Life
Less than one yearGreater than one year and less
than five years
Greater than five years and less
than ten years
Greater than ten yearsTotal
Fair value
Non-Agency RMBS
Senior$5,480 $57,114 $184,413 $220,704 $467,711 
Subordinated5,397 37,688 66,611 82,036 191,732 
Interest-only224 27,692 37,708 2,554 68,178 
Agency RMBS
Pass-through— 410,773 4,315,105 288,616 5,014,494 
CMO— 56,058 176,594 — 232,652 
Agency CMBS
ACMBS bond— 17,413 — — 17,413 
Total fair value$11,101 $606,738 $4,780,431 $593,910 $5,992,180 
Amortized cost
Non-Agency RMBS
Senior$7,234 $59,357 $163,093 $170,087 $399,771 
Subordinated1,415 33,004 62,536 82,388 179,343 
Interest-only17,131 71,091 48,981 5,080 142,283 
Agency RMBS
Pass-through— 410,817 4,305,630 286,316 5,002,763 
CMO55,663 175,368 — 231,031 
Agency CMBS
ACMBS bond— 17,499 — — 17,499 
Total amortized cost$25,780 $647,431 $4,755,608 $543,871 $5,972,690 
December 31, 2025
(dollars in thousands)
Weighted Average Life
Less than one yearGreater than one year and less
than five years
Greater than five years and less
than ten years
Greater than ten yearsTotal
Fair value
Non-Agency RMBS
Senior$9,088 $53,949 $193,582 $248,385 $505,004 
Subordinated— 62,392 68,089 102,834 233,315 
Interest-only105 35,063 41,116 2,677 78,961 
Agency RMBS
Pass-through— 161,124 2,801,491 118,958 3,081,573 
CMO— — 331,909 — 331,909 
Interest-only— 14,867 — — 14,867 
Agency CMBS
Project loans— — — 32,539 32,539 
Interest-only— 2,597 — — 2,597 
Total fair value$9,193 $329,992 $3,436,187 $505,393 $4,280,765 
Amortized cost
Non-Agency RMBS
Senior$9,377 $58,134 $161,393 $177,271 $406,175 
Subordinated— 56,909 64,198 102,847 223,954 
Interest-only16,343 76,174 50,216 3,728 146,461 
Agency RMBS
Pass-through— 160,244 2,751,648 115,903 3,027,795 
CMO— — 330,685 — 330,685 
Interest-only— 18,637 — — 18,637 
Agency CMBS
Project loans— — — 40,295 40,295 
Interest-only— 3,295 — — 3,295 
Total amortized cost$25,720 $373,393 $3,358,140 $440,044 $4,197,297 

The Non-Agency RMBS investments are secured by pools of mortgage loans which are subject to credit risk. The following table summarizes the delinquency, bankruptcy, foreclosure and real estate owned, or REO, total of the pools of mortgage loans securing the Company’s investments in Non-Agency RMBS at June 30, 2026 and December 31, 2025. When delinquency rates increase, it is expected that the Company may incur additional credit losses.

June 30, 202630 Days Delinquent60 Days Delinquent90+ Days DelinquentBankruptcyForeclosureREOTotal
% of UPB3.6 %1.6 %2.0 %1.5 %2.4 %0.7 %11.7 %

December 31, 202530 Days Delinquent60 Days Delinquent90+ Days DelinquentBankruptcyForeclosureREOTotal
% of UPB3.8 %1.5 %1.9 %1.4 %2.9 %0.7 %12.2 %
The Non-Agency RMBS in the Portfolio have the following collateral characteristics at June 30, 2026 and December 31, 2025.
June 30, 2026December 31, 2025
Weighted average maturity (years)15.616.3
Weighted average amortized loan to value (1)
53.8 %54.5 %
Weighted average FICO (2)
707707
Weighted average loan balance (in thousands)$239 $243 
Weighted average percentage owner-occupied69.4 %68.7 %
Weighted average percentage single family residence60.5 %60.4 %
Weighted average current credit enhancement0.6 %0.7 %
Weighted average geographic concentration of top four states CA 33.6 %CA33.5 %
 NY 12.5 %NY12.3 %
 FL 7.1 %FL7.2 %
 NJ 4.6 %NJ4.7 %
(1) Value represents appraised value of the collateral at the time of loan origination.
(2) FICO as determined at the time of loan origination.

The table below presents the origination year of the underlying loans related to the Company’s portfolio of Non-Agency RMBS at June 30, 2026 and December 31, 2025.
Origination YearJune 30, 2026December 31, 2025
2003 and prior1.2 %1.2 %
20040.8 %0.8 %
20057.6 %7.7 %
200641.6 %41.5 %
200736.4 %34.4 %
2008 - 20239.6 %11.1 %
2024 and later2.8 %3.3 %
Total100.0 %100.0 %
Gross realized gains and losses are recorded in Net realized losses on sales of investments on the Company’s Consolidated Statements of Operations. The proceeds and gross realized gains and gross realized losses from sales of investments for the quarters and six months ended June 30, 2026 and 2025 are as follows:
For the Quarter EndedFor the Six Months Ended
June 30, 2026June 30, 2025June 30, 2026June 30, 2025
(dollars in thousands)(dollars in thousands)
Proceeds from sales:
Non-Agency RMBS$— $12,234 $13,491 $12,234 
Agency RMBS69,908 125,892 69,908 125,892 
Agency CMBS34,913 — 34,913 — 
Gross realized gains:
Non-Agency RMBS— — — — 
Agency RMBS498 — 498 — 
Agency CMBS79 — 79 — 
Gross realized losses:
Non-Agency RMBS— (1,095)(5,021)(1,095)
Agency RMBS(3,950)(820)(3,950)(820)
Agency CMBS(6,250)— (6,250)— 
Net realized gain (loss)$(9,623)$(1,915)$(14,644)$(1,915)