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Securities (Tables)
 6 Months Ended
Jun. 30, 2025
Investments, Debt and Equity Securities [Abstract]  
Schedule of Debt Securities, Available-for-Sale
The following tables present the amortized cost, gross unrealized gains and losses and fair value by major categories of AFS and HTM debt securities as of June 30, 2025 and December 31, 2024:
June 30, 2025
($ in thousands)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value
AFS debt securities:
U.S. Treasury securities$756,268 $— $(25,206)$731,062 
U.S. government agency and U.S. government-sponsored enterprise debt securities305,615 — (35,323)270,292 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (2):
Commercial mortgage-backed securities410,247 937 (36,019)375,165 
Residential mortgage-backed securities9,576,977 32,581 (219,813)9,389,745 
Municipal securities284,948 — (45,751)239,197 
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities253,719 — (29,123)224,596 
Residential mortgage-backed securities481,295 — (69,561)411,734 
Corporate debt securities643,500 — (108,856)534,644 
Foreign government bonds244,744 1,105 (10,506)235,343 
Asset-backed securities33,445 — (802)32,643 
CLOs44,500 — (8)44,492 
Total AFS debt securities13,035,258 34,623 (580,968)12,488,913 
HTM debt securities:
U.S. Treasury securities537,851 — (23,084)514,767 
U.S. government agency and U.S. government-sponsored enterprise debt securities1,005,738 — (167,516)838,222 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (3):
Commercial mortgage-backed securities479,501 — (76,432)403,069 
Residential mortgage-backed securities683,123 — (141,511)541,612 
Municipal securities186,769 — (47,192)139,577 
Total HTM debt securities2,892,982 — (455,735)2,437,247 
Total debt securities$15,928,240 $34,623 $(1,036,703)$14,926,160 
Refer to table footnotes on the following page.
December 31, 2024
($ in thousands)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value
AFS debt securities:
U.S. Treasury securities$676,300 $— $(38,035)$638,265 
U.S. government agency and U.S. government-sponsored enterprise debt securities308,220 — (45,633)262,587 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (2):
Commercial mortgage-backed securities472,535 886 (47,207)426,214 
Residential mortgage-backed securities7,974,768 12,278 (248,786)7,738,260 
Municipal securities287,301 38 (37,186)250,153 
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities294,235 2 (35,767)258,470 
Residential mortgage-backed securities514,527 — (80,919)433,608 
Corporate debt securities653,500 — (127,334)526,166 
Foreign government bonds244,803 2,069 (12,992)233,880 
Asset-backed securities35,086 — (371)34,715 
CLOs44,500 — (7)44,493 
Total AFS debt securities 11,505,775 15,273 (674,237)10,846,811 
HTM debt securities:
U.S. Treasury securities535,080 — (35,222)499,858 
U.S. government agency and U.S. government-sponsored enterprise debt securities1,004,479 — (200,259)804,220 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (3):
Commercial mortgage-backed securities486,388 — (91,461)394,927 
Residential mortgage-backed securities703,833 — (155,626)548,207 
Municipal securities187,633 — (47,091)140,542 
Total HTM debt securities2,917,413 — (529,659)2,387,754 
Total debt securities$14,423,188 $15,273 $(1,203,896)$13,234,565 
(1)Amortized cost excludes accrued interest receivables which are presented within Other assets on the Consolidated Balance Sheet. As of June 30, 2025 and December 31, 2024, the accrued interest receivables were $49 million and $45 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 2024 Form 10-K.
(2)Includes GNMA AFS debt securities totaling $8.9 billion of both amortized cost and fair value as of June 30, 2025, and $7.3 billion of amortized cost and $7.2 billion of fair value as of December 31, 2024.
(3)Includes GNMA HTM debt securities totaling $82 million of amortized cost and $65 million of fair value as of June 30, 2025, and $86 million of amortized cost and $68 million of fair value of as of December 31, 2024.
Schedule of Debt Securities, Held-to-Maturity
The following tables present the amortized cost, gross unrealized gains and losses and fair value by major categories of AFS and HTM debt securities as of June 30, 2025 and December 31, 2024:
June 30, 2025
($ in thousands)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value
AFS debt securities:
U.S. Treasury securities$756,268 $— $(25,206)$731,062 
U.S. government agency and U.S. government-sponsored enterprise debt securities305,615 — (35,323)270,292 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (2):
Commercial mortgage-backed securities410,247 937 (36,019)375,165 
Residential mortgage-backed securities9,576,977 32,581 (219,813)9,389,745 
Municipal securities284,948 — (45,751)239,197 
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities253,719 — (29,123)224,596 
Residential mortgage-backed securities481,295 — (69,561)411,734 
Corporate debt securities643,500 — (108,856)534,644 
Foreign government bonds244,744 1,105 (10,506)235,343 
Asset-backed securities33,445 — (802)32,643 
CLOs44,500 — (8)44,492 
Total AFS debt securities13,035,258 34,623 (580,968)12,488,913 
HTM debt securities:
U.S. Treasury securities537,851 — (23,084)514,767 
U.S. government agency and U.S. government-sponsored enterprise debt securities1,005,738 — (167,516)838,222 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (3):
Commercial mortgage-backed securities479,501 — (76,432)403,069 
Residential mortgage-backed securities683,123 — (141,511)541,612 
Municipal securities186,769 — (47,192)139,577 
Total HTM debt securities2,892,982 — (455,735)2,437,247 
Total debt securities$15,928,240 $34,623 $(1,036,703)$14,926,160 
Refer to table footnotes on the following page.
December 31, 2024
($ in thousands)
Amortized Cost (1)
Gross Unrealized GainsGross Unrealized LossesFair Value
AFS debt securities:
U.S. Treasury securities$676,300 $— $(38,035)$638,265 
U.S. government agency and U.S. government-sponsored enterprise debt securities308,220 — (45,633)262,587 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (2):
Commercial mortgage-backed securities472,535 886 (47,207)426,214 
Residential mortgage-backed securities7,974,768 12,278 (248,786)7,738,260 
Municipal securities287,301 38 (37,186)250,153 
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities294,235 2 (35,767)258,470 
Residential mortgage-backed securities514,527 — (80,919)433,608 
Corporate debt securities653,500 — (127,334)526,166 
Foreign government bonds244,803 2,069 (12,992)233,880 
Asset-backed securities35,086 — (371)34,715 
CLOs44,500 — (7)44,493 
Total AFS debt securities 11,505,775 15,273 (674,237)10,846,811 
HTM debt securities:
U.S. Treasury securities535,080 — (35,222)499,858 
U.S. government agency and U.S. government-sponsored enterprise debt securities1,004,479 — (200,259)804,220 
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities (3):
Commercial mortgage-backed securities486,388 — (91,461)394,927 
Residential mortgage-backed securities703,833 — (155,626)548,207 
Municipal securities187,633 — (47,091)140,542 
Total HTM debt securities2,917,413 — (529,659)2,387,754 
Total debt securities$14,423,188 $15,273 $(1,203,896)$13,234,565 
(1)Amortized cost excludes accrued interest receivables which are presented within Other assets on the Consolidated Balance Sheet. As of June 30, 2025 and December 31, 2024, the accrued interest receivables were $49 million and $45 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 2024 Form 10-K.
(2)Includes GNMA AFS debt securities totaling $8.9 billion of both amortized cost and fair value as of June 30, 2025, and $7.3 billion of amortized cost and $7.2 billion of fair value as of December 31, 2024.
(3)Includes GNMA HTM debt securities totaling $82 million of amortized cost and $65 million of fair value as of June 30, 2025, and $86 million of amortized cost and $68 million of fair value of as of December 31, 2024.
Schedule of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value
The following tables present the fair value and the associated gross unrealized losses of the Company’s AFS debt securities in a continuous unrealized loss position, aggregated by investment category and loss duration as of June 30, 2025 and December 31, 2024.
June 30, 2025
Less Than 12 Months12 Months or MoreTotal
($ in thousands)Fair ValueGross Unrealized LossesFair ValueGross Unrealized LossesFair ValueGross Unrealized Losses
AFS debt securities:
U.S. Treasury securities$— $— $616,062 $(25,206)$616,062 

$(25,206)
U.S. government agency and U.S. government sponsored enterprise debt securities— — 270,292 (35,323)270,292 (35,323)
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities2,350 (4)346,693 (36,015)349,043 (36,019)
Residential mortgage-backed securities3,871,389 (16,241)1,542,586 (203,572)5,413,975 (219,813)
Municipal securities4,732 (127)233,465 (45,624)238,197 (45,751)
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities12,881 (6)211,715 (29,117)224,596 (29,123)
Residential mortgage-backed securities— — 411,734 (69,561)411,734 (69,561)
Corporate debt securities— — 527,644 (108,856)527,644 (108,856)
Foreign government bonds— — 89,494 (10,506)89,494 (10,506)
Asset-backed securities— — 32,643 (802)32,643 (802)
CLOs— — 44,492 (8)44,492 (8)
Total AFS debt securities$3,891,352 $(16,378)$4,326,820 $(564,590)$8,218,172 $(580,968)
December 31, 2024
Less Than 12 Months12 Months or MoreTotal
($ in thousands)Fair ValueGross Unrealized LossesFair ValueGross Unrealized LossesFair ValueGross Unrealized Losses
AFS debt securities:
U.S. Treasury securities$— $— $638,265 $(38,035)$638,265 $(38,035)
U.S. government agency and U.S. government-sponsored enterprise debt securities— — 262,587 (45,633)262,587 (45,633)
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities:
Commercial mortgage-backed securities2,741 (30)377,756 (47,177)380,497 (47,207)
Residential mortgage-backed securities2,719,228 (16,404)1,528,252 (232,382)4,247,480 (248,786)
Municipal securities2,763 (95)245,360 (37,091)248,123 (37,186)
Non-agency mortgage-backed securities:
Commercial mortgage-backed securities10,767 (332)235,668 (35,435)246,435 (35,767)
Residential mortgage-backed securities— — 433,608 (80,919)433,608 (80,919)
Corporate debt securities— — 526,166 (127,334)526,166 (127,334)
Foreign government bonds— — 87,008 (12,992)87,008 (12,992)
Asset-backed securities— — 34,715 (371)34,715 (371)
CLOs— — 44,493 (7)44,493 (7)
Total AFS debt securities$2,735,499 $(16,861)$4,413,878 $(657,376)$7,149,377 $(674,237)
Schedule of the Gross Realized Gains and Tax Expense, Available-for-Sale
The following table presents the gross realized gains from the sales of AFS debt securities and the related tax expense included in earnings for the three and six months ended June 30, 2025 and 2024:
Three Months Ended June 30,Six Months Ended June 30,
($ in thousands)2025202420252024
Gross realized gains from sales$746 $1,785 $877 $1,834 
Related tax expense
$208 $528 $247 $542 
Schedule of Composition of Interest Income on Debt Securities
The following table presents the composition of interest income on debt securities for the three and six months ended June 30, 2025 and 2024:
Three Months Ended June 30,Six Months Ended June 30,
($ in thousands)2025202420252024
Taxable interest$151,372 $106,690 $294,262 $177,018 
Nontaxable interest2,416 5,042 7,310 10,106 
Total interest income on debt securities$153,788 $111,732 $301,572 $187,124 
Schedule of Contractual Maturities of AFS and HTM Debt Securities
The following tables present the contractual maturities, amortized cost, fair value and weighted-average yields of AFS and HTM debt securities as of June 30, 2025. Expected maturities will differ from contractual maturities on certain securities as the issuers and borrowers of the underlying collateral may have the right to call or prepay obligations with or without prepayment penalties.
($ 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$164,692 $591,576 $— $— $756,268 
Fair value164,423 566,639 — — 731,062 
Weighted-average yield (1)
3.61%1.06%—%—%1.62%
U.S. government agency and U.S. government-sponsored enterprise debt securities
Amortized cost16,596 26,929 201,231 60,859 305,615 
Fair value16,507 26,074 176,330 51,381 270,292 
Weighted-average yield (1)
0.93%1.36%2.00%1.98%1.89%
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities
Amortized cost4,782 93,119 103,578 9,785,745 9,987,224 
Fair value4,754 89,666 94,250 9,576,240 9,764,910 
Weighted-average yield (1) (2)
3.57%2.87%2.89%5.06%5.02%
Municipal securities
Amortized cost9,118 23,367 7,108 245,355 284,948 
Fair value8,992 22,510 6,695 201,000 239,197 
Weighted-average yield (1) (2)
1.81%2.31%3.56%2.23%2.26%
Non-agency mortgage-backed securities
Amortized cost11,858 4,196 3,557 715,403 735,014 
Fair value11,702 4,147 3,556 616,925 636,330 
Weighted-average yield (1)
0.47%3.11%5.51%2.35%2.34%
Corporate debt securities
Amortized cost11,000 — 328,500 304,000 643,500 
Fair value10,980 — 299,389 224,275 534,644 
Weighted-average yield (1)
5.32%—%3.38%1.97%2.75%
Foreign government bonds
Amortized cost123,619 21,125 50,000 50,000 244,744 
Fair value124,513 21,336 49,759 39,735 235,343 
Weighted-average yield (1)
2.46%1.95%4.67%1.50%2.67%
Asset-backed securities
Amortized cost— — — 33,445 33,445 
Fair value— — — 32,643 32,643 
Weighted-average yield (1)
—%—%—%5.03%5.03%
CLOs
Amortized cost— — 44,500 — 44,500 
Fair value— — 44,492 — 44,492 
Weighted-average yield (1)
—%—%5.73%—%5.73%
Total AFS debt securities
Amortized cost$341,665 $760,312 $738,474 $11,194,807 $13,035,258 
Fair value$341,871 $730,372 $674,471 $10,742,199 $12,488,913 
Weighted-average yield (1)
2.96%1.37%3.18%4.71%4.38%
($ 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$—$537,851$—$—$537,851
Fair value—514,767——514,767
Weighted-average yield (1)
—%1.05%—%—%1.05%
U.S. government agency and U.S. government-sponsored enterprise debt securities
Amortized cost—24,365395,486585,8871,005,738
Fair value—22,057346,789469,376838,222
Weighted-average yield (1)
—%1.42%1.90%1.91%1.90%
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities
Amortized cost—18,018162,951981,6551,162,624
Fair value—16,671139,946788,064944,681
Weighted-average yield (1) (2)
—%1.61%1.69%1.68%1.68%
Municipal securities
Amortized cost———186,769186,769
Fair value———139,577139,577
Weighted-average yield (1) (2)
—%—%—%2.02%2.02%
Total HTM debt securities
Amortized cost$—$580,234$558,437$1,754,311$2,892,982
Fair value$—$553,495$486,735$1,397,017$2,437,247
Weighted-average yield (1)
—%1.08%1.84%1.79%1.66%
(1)Weighted-average yields are computed based on amortized cost balances.
(2)Yields on tax-exempt securities are not presented on a tax-equivalent basis.
Schedule of Restricted Equity Securities
The following table presents the restricted equity securities included in Other assets on the Consolidated Balance Sheet as of June 30, 2025 and December 31, 2024:
($ in thousands)June 30, 2025December 31, 2024
Federal Reserve Bank (“FRB”) of San Francisco stock
$64,660 $63,930 
FHLB stock101,329 101,329 
Total restricted equity securities$165,989 $165,259