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Securities
6 Months Ended
Jun. 30, 2026
Investments, Debt and Equity Securities [Abstract]  
Securities Securities
The following tables present the amortized cost, gross unrealized gains and losses, allowance for credit losses, and fair value by major categories of AFS and HTM debt securities as of June 30, 2026 and December 31, 2025:
June 30, 2026
($ in thousands)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value
AFS debt securities:
U.S. Treasury securities$1,452,946 $234 $(21,839)$1,431,341 
U.S. government agency and U.S. government-sponsored enterprise debt securities286,666 — (32,266)254,400 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (2):
Commercial mortgage-backed securities249,683 97 (25,383)224,397 
Residential mortgage-backed securities11,420,269 39,019 (228,460)11,230,828 
Municipal securities271,422 17 (30,751)240,688 
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities196,228 — (21,622)174,606 
Residential mortgage-backed securities420,959 — (59,324)361,635 
Corporate debt securities506,125 — (84,823)421,302 
Foreign government bonds251,260 435 (9,346)242,349 
Total AFS debt securities15,055,558 39,802 (513,814)14,581,546 
HTM debt securities:
U.S. Treasury securities543,466 — (15,031)528,435 
U.S. government agency and U.S. government-sponsored enterprise debt securities1,008,313 — (154,607)853,706 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (3):
Commercial mortgage-backed securities466,903 — (71,161)395,742 
Residential mortgage-backed securities642,441 — (125,412)517,029 
Municipal securities184,241 — (35,659)148,582 
Total HTM debt securities2,845,364  (401,870)2,443,494 
Total debt securities$17,900,922 $39,802 $(915,684)$17,025,040 
Refer to table footnotes on the following page.
December 31, 2025
($ in thousands)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized Losses
Allowance for Credit Losses
Fair Value
AFS debt securities:
U.S. Treasury securities$1,010,053 $837 $(16,977)$— $993,913 
U.S. government agency and U.S. government-sponsored enterprise debt securities287,687 — (30,033)— 257,654 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (2):
Commercial mortgage-backed securities292,564 86 (27,312)— 265,338 
Residential mortgage-backed securities10,251,714 68,588 (187,649)— 10,132,653 
Municipal securities277,275 20 (34,193)— 243,102 
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities214,987 — (22,139)(1,900)190,948 
Residential mortgage-backed securities452,208 — (58,421)— 393,787 
Corporate debt securities554,158 (89,183)— 464,981 
Foreign government bonds247,249 437 (9,231)— 238,455 
Asset-backed securities31,886 — (497)— 31,389 
Total AFS debt securities 13,619,781 69,974 (475,635)(1,900)13,212,220 
HTM debt securities:
U.S. Treasury securities540,666 — (15,779)— 524,887 
U.S. government agency and U.S. government-sponsored enterprise debt securities1,007,055 — (146,921)— 860,134 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (3):
Commercial mortgage-backed securities474,747 — (69,471)— 405,276 
Residential mortgage-backed securities662,127 — (124,176)— 537,951 
Municipal securities185,463 — (33,965)— 151,498 
Total HTM debt securities2,870,058  (390,312) 2,479,746 
Total debt securities$16,489,839 $69,974 $(865,947)$(1,900)$15,691,966 
(1)Amortized cost excludes accrued interest receivables which are presented within Other assets on the Consolidated Balance Sheet. As of June 30, 2026 and December 31, 2025, the accrued interest receivables were $64 million and $54 million, respectively. For the Company’s accounting policy related to debt securities’ accrued interest receivables, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Allowance for Credit Losses on Available-for-Sale Debt Securities and Allowance for Credit Losses on Held-to-Maturity Debt Securities to the Consolidated Financial Statements in the Company’s 2025 Form 10-K.
(2)Includes GNMA AFS debt securities totaling $10.0 billion of amortized cost and $9.9 billion of fair value as of June 30, 2026, and amortized cost and fair value both totaling $9.6 billion as of December 31, 2025.
(3)Includes GNMA HTM debt securities totaling $76 million of amortized cost and $61 million of fair value as of June 30, 2026, and $79 million of amortized cost and $65 million of fair value as of December 31, 2025.
Unrealized Losses of Available-for-Sale Debt Securities

The following tables present the fair value and the associated gross unrealized losses of the Company’s AFS debt securities in a continuous unrealized loss position, aggregated by investment category and loss duration as of June 30, 2026 and December 31, 2025.
June 30, 2026
Less Than 12 Months12 Months or MoreTotal
($ in thousands)Fair ValueGross Unrealized LossesFair ValueGross Unrealized LossesFair ValueGross Unrealized Losses
AFS debt securities:
U.S. Treasury securities$752,995 $(11,871)$580,436 $(9,968)$1,333,431 

$(21,839)
U.S. government agency and U.S. government sponsored enterprise debt securities— — 254,400 (32,266)254,400 (32,266)
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities3,473 (85)216,352 (25,298)219,825 (25,383)
Residential mortgage-backed securities4,518,493 (49,168)1,324,514 (179,292)5,843,007 (228,460)
Municipal securities10,112 (71)225,102 (30,680)235,214 (30,751)
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities— — 174,606 (21,622)174,606 (21,622)
Residential mortgage-backed securities— — 361,635 (59,324)361,635 (59,324)
Corporate debt securities— — 421,302 (84,823)421,302 (84,823)
Foreign government bonds18,922 (11)40,665 (9,335)59,587 (9,346)
Total AFS debt securities$5,303,995 $(61,206)$3,599,012 $(452,608)$8,903,007 $(513,814)
December 31, 2025
Less Than 12 Months12 Months or MoreTotal
($ in thousands)Fair ValueGross Unrealized LossesFair ValueGross Unrealized LossesFair ValueGross Unrealized Losses
AFS debt securities:
U.S. Treasury securities$323,019 $(1,627)$575,638 $(15,350)$898,657 $(16,977)
U.S. government agency and U.S. government-sponsored enterprise debt securities— — 257,654 (30,033)257,654 (30,033)
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities— — 256,503 (27,312)256,503 (27,312)
Residential mortgage-backed securities1,052,833 (5,480)1,582,952 (182,169)2,635,785 (187,649)
Municipal securities— — 237,214 (34,193)237,214 (34,193)
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities— — 190,948 (22,139)190,948 (22,139)
Residential mortgage-backed securities— — 393,787 (58,421)393,787 (58,421)
Corporate debt securities— — 454,975 (89,183)454,975 (89,183)
Foreign government bonds— — 90,769 (9,231)90,769 (9,231)
Asset-backed securities— — 31,389 (497)31,389 (497)
Total AFS debt securities$1,375,852 $(7,107)$4,071,829 $(468,528)$5,447,681 $(475,635)
As of June 30, 2026, the Company had 482 AFS debt securities in a gross unrealized loss position, primarily consisting of 284 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities, 41 corporate debt securities and 61 non-agency mortgage-backed securities. In comparison, as of December 31, 2025, the Company had 429 AFS debt securities in a gross unrealized loss position, primarily consisting of 222 U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities, 47 corporate debt securities and 66 non-agency mortgage-backed securities.

Allowance for Credit Losses on Available-for-Sale Debt Securities

The Company evaluates each AFS debt security where the fair value declines below amortized cost. For a discussion of the factors and criteria the Company uses in analyzing securities for impairment related to credit losses, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Allowance for Credit Losses on Available-for-Sale Debt Securities to the Consolidated Financial Statements in the Company’s 2025 Form 10-K.

The gross unrealized losses presented in the preceding tables were primarily attributable to interest rate movement and the widening of liquidity and/or credit spreads. U.S. Treasury, U.S. government agency, U.S. government-sponsored agency, and U.S. government-sponsored enterprise debt and mortgage-backed securities are issued, guaranteed, or otherwise supported by the U.S. government and have a zero credit loss assumption. The remaining securities that were in an unrealized loss position as of June 30, 2026 were mainly comprised of the following:

Corporate debt securities — The market value movement as of June 30, 2026 was primarily due to interest rate movement and spread change. A portion of the corporate debt securities is comprised of subordinated debt securities issued by U.S. banks. These securities are nearly all rated investment grade by nationally recognized statistical rating organizations (“NRSROs”) and issued by well-capitalized financial institutions with strong profitability. The contractual payments from these corporate debt securities have been and are expected to be received on time. The Company will continue to monitor the market developments in the banking sector and the credit performance of these securities.
Non-agency mortgage-backed securities — The market value movement for the majority of these securities as of June 30, 2026 was primarily due to interest rate movement and spread change. A substantial majority of the non-agency mortgage-backed securities are rated investment grade by NRSROs or have high priority in the cash flow waterfall within the securitization structure, and the contractual payments have historically been on time. Accordingly, the Company believes the risk of credit losses on these securities is low.

As of both June 30, 2026 and December 31, 2025, the Company intended to hold the AFS debt securities with unrealized losses through the anticipated recovery period and it was more-likely-than-not that the Company would not have to sell these securities before the recovery of their amortized cost. The issuers of these securities have not, to the Company’s knowledge, established any cause for default on these securities. As a result, the Company expects to recover the entire amortized cost basis of these securities.

There was no allowance for credit losses recorded against these securities as of June 30, 2026, compared with an allowance for credit losses of $2 million as of December 31, 2025, related to a non-agency commercial mortgage-backed security that experienced a deterioration in both its credit rating and expected cash flows, resulting in its fair value falling below amortized cost. For the three months ended June 30, 2026, no provision for credit losses was recognized. For the six months ended June 30, 2026, a $192 thousand reversal of credit losses was recognized, as a result of the sale of this security, compared with no provision for credit losses for the three and six months ended June 30, 2025.

Allowance for Credit Losses on Held-to-Maturity Debt Securities

The Company separately evaluates its HTM debt securities for any credit losses using an expected loss model, similar to the methodology used for loans. For additional information on the Company’s credit loss methodology, refer to Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Allowance for Credit Losses on Held-to-Maturity Debt Securities to the Consolidated Financial Statements in the Company’s 2025 Form 10-K.
The Company monitors the credit quality of the HTM debt securities using external credit ratings. As of June 30, 2026, all HTM securities were rated investment grade by NRSROs and issued, guaranteed, or supported by U.S. government entities and agencies. Accordingly, the Company applied a zero credit loss assumption and no allowance for credit losses was recorded as of both June 30, 2026 and December 31, 2025. Overall, the Company believes that the credit support levels of the debt securities are strong and based on current assessments and macroeconomic forecasts, expects that full contractual cash flows will be received.

Realized Gains and Reversal of Credit Losses

The following table presents the gross realized gains from the sales of AFS debt securities (pre-tax), the reversal of credit losses, and the related tax expense included in earnings for the three and six months ended June 30, 2026 and 2025:
Three Months Ended June 30,Six Months Ended June 30,
($ in thousands)2026202520262025
Gross realized gains from sales$2,931 $746 $3,547 $877 
Reversal of credit losses
$— $— $192 $— 
Related tax expense
$866 $208 $1,105 $247 

Interest Income

The following table presents the composition of interest income on debt securities for the three and six months ended June 30, 2026 and 2025:
Three Months Ended June 30,Six Months Ended June 30,
($ in thousands)2026202520262025
Taxable interest$166,773 $151,372 $323,340 $294,262 
Nontaxable interest3,556 2,416 7,167 7,310 
Total interest income on debt securities$170,329 $153,788 $330,507 $301,572 
Contractual Maturities of Available-for-Sale and Held-to-Maturity Debt Securities

The following tables present the contractual maturities, amortized cost, fair value and weighted-average yields of AFS and HTM debt securities as of June 30, 2026. Expected maturities will differ from contractual maturities on certain securities as the issuers and borrowers of the underlying collateral may have the right to call or prepay obligations with or without prepayment penalties.
($ in thousands)Within One Year
After One Year through Five Years
After Five Years through Ten Years After Ten Years Total
AFS debt securities:
U.S. Treasury securities
Amortized cost$490,491 $890,422 $72,033 $— $1,452,946 
Fair value485,561 875,488 70,292 — 1,431,341 
Weighted-average yield (1)
1.13%3.47%3.78%%2.70%
U.S. government agency and U.S. government-sponsored enterprise debt securities
Amortized cost1,677 75,000 153,065 56,924 286,666 
Fair value1,659 69,868 134,895 47,978 254,400 
Weighted-average yield (1)
2.85%1.88%2.15%2.15%2.08%
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities
Amortized cost81 56,177 75,152 11,538,542 11,669,952 
Fair value80 53,954 68,889 11,332,302 11,455,225 
Weighted-average yield (1) (2)
2.57%2.87%2.82%4.74%4.72%
Municipal securities
Amortized cost17,453 6,359 23,584 224,026 271,422 
Fair value17,301 5,986 20,140 197,261 240,688 
Weighted-average yield (1) (2)
2.52%1.80%2.41%2.25%2.28%
Non-agency mortgage-backed securities
Amortized cost— — — 617,187 617,187 
Fair value— — — 536,241 536,241 
Weighted-average yield (1)
%%%2.23%2.23%
Corporate debt securities
Amortized cost7,375 62,250 411,500 25,000 506,125 
Fair value7,201 58,683 334,487 20,931 421,302 
Weighted-average yield (1)
6.28%4.33%2.26%1.80%2.55%
Foreign government bonds
Amortized cost41,031 160,229 50,000 — 251,260 
Fair value41,154 160,531 40,664 — 242,349 
Weighted-average yield (1)
2.16%2.21%1.75%%2.11%
Total AFS debt securities
Amortized cost$558,108 $1,250,437 $785,334 $12,461,679 $15,055,558 
Fair value$552,956 $1,224,510 $669,367 $12,134,713 $14,581,546 
Weighted-average yield (1)
1.32%3.22%2.40%4.55%4.21%
($ in thousands)Within One Year
After One Year through Five Years
After Five Years through Ten YearsAfter Ten YearsTotal
HTM debt securities:
U.S. Treasury securities
Amortized cost$223,023$320,443 $$$543,466
Fair value218,507309,928 528,435
Weighted-average yield (1)
0.93%1.13%%%1.05%
U.S. government agency and U.S. government-sponsored enterprise debt securities
Amortized cost130,134812,87165,3081,008,313
Fair value118,579682,05353,074853,706
Weighted-average yield (1)
%1.37%1.96%2.12%1.90%
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities
Amortized cost68,086214,143827,1151,109,344
Fair value62,082182,459668,230912,771
Weighted-average yield (1) (2)
%1.60%1.72%1.67%1.68%
Municipal securities
Amortized cost13,812170,429184,241
Fair value12,080136,502148,582
Weighted-average yield (1) (2)
%%2.35%1.99%2.02%
Total HTM debt securities
Amortized cost$223,023$518,663$1,040,826$1,062,852$2,845,364
Fair value$218,507$490,589$876,592$857,806$2,443,494
Weighted-average yield (1)
0.93%1.25%1.92%1.75%1.66%
(1)Weighted-average yields are computed based on amortized cost balances.
(2)Yields on tax-exempt securities are not presented on a tax-equivalent basis.

As of June 30, 2026 and December 31, 2025, AFS and HTM debt securities with carrying values of $4.7 billion and $4.6 billion, respectively, were pledged to secure borrowings and for other purposes required or permitted by law. As of June 30, 2026 and December 31, 2025, AFS and HTM debt securities with fair values of $8.2 billion and $4.8 billion, respectively, were prepositioned for the Federal Reserve Bank (“FRB”) Standing Repurchase Agreement Facility.

Restricted Equity Securities

The following table presents the restricted equity securities included in Other assets on the Consolidated Balance Sheet as of June 30, 2026 and December 31, 2025:
($ in thousands)June 30, 2026December 31, 2025
FRB of San Francisco stock
$66,589 $66,179 
FHLB stock92,424 87,305 
Total restricted equity securities$159,013 $153,484