v3.26.3
Mortgage-Backed Securities
9 Months Ended
Sep. 30, 2026
Investments, Debt and Equity Securities [Abstract]  
Mortgage-Backed Securities MORTGAGE-BACKED SECURITIES
 
The following tables provide details on the Company’s MBS by investment type as of the dates indicated:
September 30, 2026
($s in thousands)
Agency RMBS
Agency CMBS
CMBS IO (1)
Total
Measured at fair value through net income:
Amortized cost
$25,395,940
$1,463,036
$26,756
$26,885,732
Gross unrealized gain
1,032
—
2
1,034
Gross unrealized loss
(1,524,574)
(74,724)
(1,618)
(1,600,916)
Fair value through net income
$23,872,398
$1,388,312
$25,140
$25,285,850
Measured at fair value through OCI:
Amortized cost
$703,607
$43,738
$44,015
$791,360
Gross unrealized gain
—
—
2,117
2,117
Gross unrealized loss
(161,530)
(3,016)
(2,174)
(166,720)
Fair value through OCI
$542,077
$40,722
$43,958
$626,757
Total
$24,414,475
$1,429,034
$69,098
$25,912,607
December 31, 2025
Agency RMBS
Agency CMBS
CMBS IO (1)
Total
Measured at fair value through net income:
Amortized cost
$14,233,682
$1,165,674
$30,680
$15,430,036
Gross unrealized gain
236,304
8,293
20
244,617
Gross unrealized loss
(99,899)
(995)
(1,147)
(102,041)
Fair value through net income
$14,370,087
$1,172,972
$29,553
$15,572,612
Measured at fair value through OCI:
Amortized cost
$757,127
$47,433
$56,877
$861,437
Gross unrealized gain
—
25
2,620
2,645
Gross unrealized loss
(125,854)
(2,087)
(1,765)
(129,706)
Fair value through OCI
$631,273
$45,371
$57,732
$734,376
Total
$15,001,360
$1,218,343
$87,285
$16,306,988
(1) The Company held a notional balance of CMBS IO of $4.8 billion as of September 30, 2026, and $6.0 billion as
of December 31, 2025.
The majority of the Company’s MBS are pledged as collateral for the Company’s repurchase agreements,
which are disclosed in Note 4. Actual maturities of MBS are affected by the contractual lives of the underlying
mortgage collateral, scheduled payments, and unscheduled prepayments of principal, and the payment priority
structure of the security; therefore, actual maturities are generally shorter than the securities' stated contractual
maturities.
The following table presents information regarding unrealized gains and losses on investments reported
within net income (loss) on the Company’s consolidated statements of comprehensive income (loss) for the periods
indicated:
Three Months Ended
Nine Months Ended
September 30,
September 30,
($s in thousands)
2026
2025
2026
2025
Agency RMBS
$(1,397,829)
$139,842
$(1,659,947)
$278,204
Agency CMBS
(66,833)
2,410
(82,022)
6,785
CMBS IO
(389)
223
(489)
1,148
Other investments
4
(6)
(22)
(19)
Unrealized (loss) gain on investments, net
$(1,465,047)
$142,469
$(1,742,480)
$286,118
The following table presents information regarding realized gains and losses on sales of MBS reported in
the Company’s consolidated statements of comprehensive income (loss) for the periods indicated:
Three Months Ended
Nine Months Ended
September 30,
September 30,
($s in thousands)
2026
2025
2026
2025
Realized gain on sales of MBS - FVO
$—
$—
$8,721
$—
Realized loss on sale of MBS - FVO
(544)
—
(544)
—
Total realized (loss) gain on sales of
investments, net
$(544)
$—
$8,177
$—
The following table presents certain information for MBS designated as AFS that were in an unrealized loss
position as of the dates indicated:
 
September 30, 2026
December 31, 2025
($s in thousands)
Fair
Value
Gross
Unrealized
Losses
# of
Securities
Fair
Value
Gross
Unrealized
Losses
# of
Securities
Continuous unrealized loss
position for less than 12 months:
 
 
 
 
Agency MBS
$4,443
$(111)
4
$730
$(1)
2
Non-Agency MBS
834
(5)
1
208
(22)
3
Continuous unrealized loss
position for 12 months or
longer:
Agency MBS
$618,036
$(166,604)
50
$721,536
$(129,658)
56
Non-Agency MBS
—
—
—
752
(25)
3
The unrealized loss positions on the Company’s MBS designated as AFS as of September 30, 2026 and
December 31, 2025 were the result of higher interest rates and wider spreads to U.S. Treasuries compared to at the
time of purchase. The unrealized loss positions are not credit related; therefore, the Company did not record an
allowance for credit losses as of September 30, 2026 or December 31, 2025. The Company has the ability and intent
to hold any MBS with an unrealized loss until the recovery in its value. This assessment is based on the amount of
the unrealized loss and significance of the related investment as well as the Company’s leverage and liquidity
position. In addition, for its non-Agency MBS, which are not guaranteed by a GSE, the Company reviews the credit
ratings, the credit characteristics of the mortgage loans collateralizing these securities, and the estimated future cash
flows including projected collateral losses.