v3.26.1
Investment Securities
6 Months Ended
Jun. 30, 2026
Investments, Debt and Equity Securities [Abstract]  
Investment Securities

5. INVESTMENT SECURITIES

 

The amortized cost and estimated fair value of available-for-sale (“AFS”) and held-to-maturity (“HTM”) investment securities are summarized below. Fair value is generally determined based on quoted prices for similar assets in active markets or quoted prices for identical assets in markets that are not active. Estimated fair values were obtained from an independent pricing service utilizing observable market data.

 

 

June 30, 2026

 

 

Amortized Cost

 

 

Gross Unrealized Holding Gain

 

 

Gross Unrealized Holding Loss

 

 

Fair Value

 

 

Total Percent

 

 

(Dollars in thousands)

 

AFS investment securities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

45,635

 

 

$

 

 

$

(109

)

 

$

45,526

 

 

 

1.32

%

Mortgage-backed securities

 

2,637,390

 

 

 

1,844

 

 

 

(213,835

)

 

 

2,425,399

 

 

 

70.14

%

CMO/REMIC

 

1,032,757

 

 

 

362

 

 

 

(111,171

)

 

 

921,948

 

 

 

26.66

%

Municipal bonds

 

21,427

 

 

 

23

 

 

 

(625

)

 

 

20,825

 

 

 

0.60

%

Collateralized loan obligations

 

42,000

 

 

 

29

 

 

 

 

 

 

42,029

 

 

 

1.22

%

Other securities

 

2,037

 

 

 

 

 

 

 

 

 

2,037

 

 

 

0.06

%

Unallocated portfolio layer fair value basis
  adjustments
(1)

 

(3,502

)

 

 

3,502

 

 

 

 

 

 

 

 

 

0.00

%

Total AFS investment securities

$

3,777,744

 

 

$

5,760

 

 

$

(325,740

)

 

$

3,457,764

 

 

 

100.00

%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HTM investment securities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

490,324

 

 

$

 

 

$

(84,755

)

 

$

405,569

 

 

 

22.10

%

Mortgage-backed securities

 

533,852

 

 

 

 

 

 

(86,197

)

 

 

447,655

 

 

 

24.06

%

CMO/REMIC

 

736,006

 

 

 

 

 

 

(155,100

)

 

 

580,906

 

 

 

33.18

%

Municipal bonds

 

439,548

 

 

 

1,410

 

 

 

(26,493

)

 

 

414,465

 

 

 

19.81

%

Other securities (2)

 

18,799

 

 

 

 

 

 

 

 

 

18,799

 

 

 

0.85

%

Total HTM investment securities

$

2,218,529

 

 

$

1,410

 

 

$

(352,545

)

 

$

1,867,394

 

 

 

100.00

%

 

 

December 31, 2025

 

 

Amortized Cost

 

 

Gross Unrealized Holding Gain

 

 

Gross Unrealized Holding Loss

 

 

Fair Value

 

 

Total Percent

 

 

(Dollars in thousands)

 

AFS investment securities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

35,348

 

 

$

17

 

 

$

(81

)

 

$

35,284

 

 

 

1.32

%

Mortgage-backed securities

 

2,089,155

 

 

 

2,199

 

 

 

(203,700

)

 

 

1,887,654

 

 

 

70.35

%

CMO/REMIC

 

800,896

 

 

 

2,314

 

 

 

(108,060

)

 

 

695,150

 

 

 

25.91

%

Municipal bonds

 

21,787

 

 

 

27

 

 

 

(524

)

 

 

21,290

 

 

 

0.79

%

Collateralized loan obligations

 

42,000

 

 

 

 

 

 

 

 

 

42,000

 

 

 

1.57

%

Other securities

 

1,692

 

 

 

 

 

 

 

 

 

1,692

 

 

 

0.06

%

Unallocated portfolio layer fair value basis
  adjustments
(1)

 

(8,650

)

 

 

8,650

 

 

 

 

 

 

 

 

 

0.00

%

Total AFS investment securities

$

2,982,228

 

 

$

13,207

 

 

$

(312,365

)

 

$

2,683,070

 

 

 

100.00

%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HTM investment securities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

498,513

 

 

$

 

 

$

(82,741

)

 

$

415,772

 

 

 

21.96

%

Mortgage-backed securities

 

557,860

 

 

 

25

 

 

 

(84,512

)

 

 

473,373

 

 

 

24.57

%

CMO/REMIC

 

751,639

 

 

 

 

 

 

(152,417

)

 

 

599,222

 

 

 

33.10

%

Municipal bonds

 

444,694

 

 

 

1,572

 

 

 

(26,826

)

 

 

419,440

 

 

 

19.59

%

Other securities (2)

 

17,685

 

 

 

 

 

 

 

 

 

17,685

 

 

 

0.78

%

Total HTM investment securities

$

2,270,391

 

 

$

1,597

 

 

$

(346,496

)

 

$

1,925,492

 

 

 

100.00

%

 

(1)
Represents the amount of portfolio layer method basis adjustments related to AFS mortgage-backed securities (“MBS”) securities hedged in a closed portfolio. Under GAAP, these basis adjustments are not allocated to individual securities, however the amounts impact the unrealized gains or losses of the hedged AFS securities. Refer to Note 11 for additional information.
(2)
Represents Commercial Property Assessed Clean Energy (“C-PACE”) bonds.

 

The following table provides information about the amount of interest income earned on investment securities which is fully taxable, and interest income on investment securities which is exempt from regular federal income tax.

 

 

Three Months Ended

 

 

Six Months Ended

 

 

June 30,

 

 

June 30,

 

 

2026

 

 

2025

 

 

2026

 

 

2025

 

 

(Dollars in thousands)

 

AFS investment securities

 

 

 

 

 

 

 

 

 

 

 

Taxable

$

23,083

 

 

$

18,154

 

 

$

42,338

 

 

$

36,744

 

Tax-advantaged

 

146

 

 

 

145

 

 

 

291

 

 

 

289

 

Total interest income from AFS investment securities

 

23,229

 

 

 

18,299

 

 

 

42,629

 

 

 

37,033

 

HTM investment securities

 

 

 

 

 

 

 

 

 

 

 

Taxable

 

10,037

 

 

 

10,537

 

 

 

20,208

 

 

 

21,196

 

Tax-advantaged

 

2,285

 

 

 

2,349

 

 

 

4,580

 

 

 

4,711

 

Total interest income from HTM investment securities

 

12,322

 

 

 

12,886

 

 

 

24,788

 

 

 

25,907

 

Total interest income from investment securities

$

35,551

 

 

$

31,185

 

 

$

67,417

 

 

$

62,940

 

 

The following table presents the Company’s AFS and HTM investment securities, by investment category, in an unrealized loss position for which an allowance for credit losses has not been recorded as of June 30, 2026 and December 31, 2025.

 

 

June 30, 2026

 

 

Less Than 12 Months

 

 

12 Months or Longer

 

 

Total

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

(Dollars in thousands)

 

AFS investment securities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

44,970

 

 

$

(109

)

 

$

 

 

$

 

 

$

44,970

 

 

$

(109

)

Mortgage-backed securities

 

474,856

 

 

 

(4,810

)

 

 

1,460,674

 

 

 

(209,025

)

 

 

1,935,530

 

 

 

(213,835

)

CMO/REMIC

 

247,003

 

 

 

(1,082

)

 

 

332,202

 

 

 

(110,089

)

 

 

579,205

 

 

 

(111,171

)

Municipal bonds

 

986

 

 

 

(14

)

 

 

17,130

 

 

 

(611

)

 

 

18,116

 

 

 

(625

)

Total AFS investment securities

$

767,815

 

 

$

(6,015

)

 

$

1,810,006

 

 

$

(319,725

)

 

$

2,577,821

 

 

$

(325,740

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HTM investment securities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

 

 

$

 

 

$

405,569

 

 

$

(84,755

)

 

$

405,569

 

 

$

(84,755

)

Mortgage-backed securities

 

16,310

 

 

 

(36

)

 

 

431,210

 

 

 

(86,161

)

 

 

447,520

 

 

 

(86,197

)

CMO/REMIC

 

 

 

 

 

 

 

580,906

 

 

 

(155,100

)

 

 

580,906

 

 

 

(155,100

)

Municipal bonds

 

13,656

 

 

 

(24

)

 

 

313,870

 

 

 

(26,469

)

 

 

327,526

 

 

 

(26,493

)

Total HTM investment securities

$

29,966

 

 

$

(60

)

 

$

1,731,555

 

 

$

(352,485

)

 

$

1,761,521

 

 

$

(352,545

)

 

 

 

December 31, 2025

 

 

Less Than 12 Months

 

 

12 Months or Longer

 

 

Total

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

(Dollars in thousands)

 

AFS investment securities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

5,919

 

 

$

(81

)

 

$

 

 

$

 

 

$

5,919

 

 

$

(81

)

Mortgage-backed securities

 

32,579

 

 

 

(71

)

 

 

1,586,803

 

 

 

(203,629

)

 

 

1,619,382

 

 

 

(203,700

)

CMO/REMIC

 

 

 

 

 

 

 

344,865

 

 

 

(108,060

)

 

 

344,865

 

 

 

(108,060

)

Municipal bonds

 

 

 

 

 

 

 

17,600

 

 

 

(524

)

 

 

17,600

 

 

 

(524

)

Total AFS investment securities

$

38,498

 

 

$

(152

)

 

$

1,949,268

 

 

$

(312,213

)

 

$

1,987,766

 

 

$

(312,365

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HTM investment securities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

 

 

$

 

 

$

415,772

 

 

$

(82,741

)

 

$

415,772

 

 

$

(82,741

)

Mortgage-backed securities

 

 

 

 

 

 

 

455,255

 

 

 

(84,512

)

 

 

455,255

 

 

 

(84,512

)

CMO/REMIC

 

 

 

 

 

 

 

599,222

 

 

 

(152,417

)

 

 

599,222

 

 

 

(152,417

)

Municipal bonds

 

3,690

 

 

 

(11

)

 

 

321,723

 

 

 

(26,815

)

 

 

325,413

 

 

 

(26,826

)

Total HTM investment securities

$

3,690

 

 

$

(11

)

 

$

1,791,972

 

 

$

(346,485

)

 

$

1,795,662

 

 

$

(346,496

)

 

The allowance for credit losses on investment securities is evaluated for both the AFS and HTM classifications of the investment portfolio in accordance with ASC 326. The Company reviews investment securities in an unrealized loss position to determine whether the decline in fair value a is attributable to credit-related factors or non-credit-related factors, such as changes in interest rates and general market conditions, changes in issuer credit ratings. Unrealized losses on AFS securities attributable to non-credit-related factors are not recorded through an ACL. Such declines are recorded in accumulated other comprehensive income, net. If the Company intends to sell an AFS security, or if it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis, the amortized cost basis of the security is written down to fair value through earnings. Management determined that no credit losses exist for securities in an unrealized loss position as of June 30, 2026 and December 31, 2025. Accordingly, no allowance for credit losses was recorded on the Company's investment securities portfolio.

 

At June 30, 2026, investment securities with carrying values of $2.74 billion were pledged to secure various types of deposits, including $1.03 billion of public funds. In addition, investment securities with carrying values of $2.36 billion were pledged to secure $708.5 million for repurchase agreements, $1.58 billion for unused borrowing capacity, and approximately $71.7 million for other purposes as required or permitted by law.

 

At December 31, 2025, investment securities with carrying values of $2.74 billion were pledged to secure various types of deposits, including $942.0 million of public funds. In addition, investment securities with carrying values of $2.0 billion were pledged to secure $548.6 million for repurchase agreements, $1.35 billion for unused borrowing capacity, and approximately $57.0 million for other purposes as required or permitted by law.

 

The amortized cost and fair value of debt securities at June 30, 2026, by contractual maturity, are shown in the following table. Although mortgage-backed securities and CMO/REMIC securities have weighted average remaining contractual maturities of approximately 25 years, expected maturities will differ from contractual maturities because borrowers may have the right to prepay such obligations without penalty. Mortgage-backed securities and CMO/REMIC securities are included in maturity categories based upon estimated average lives which incorporate estimated prepayment speeds.

 

 

June 30, 2026

 

 

Available-for-sale

 

 

Held-to-maturity

 

 

Amortized Cost

 

 

Fair Value

 

 

Amortized Cost

 

 

Fair Value

 

 

 

 

 

(Dollars in thousands)

 

 

 

 

Due in one year or less

$

36,000

 

 

$

35,938

 

 

$

4,368

 

 

$

4,361

 

Due after one year through five years

 

28,905

 

 

 

32,164

 

 

 

130,367

 

 

 

122,303

 

Due after five years through ten years

 

41,539

 

 

 

40,581

 

 

 

328,226

 

 

 

286,347

 

Due after ten years

 

3,671,300

 

 

 

3,349,081

 

 

 

1,755,568

 

 

 

1,454,383

 

Total investment securities

$

3,777,744

 

 

$

3,457,764

 

 

$

2,218,529

 

 

$

1,867,394

 

 

Investment in Federal Home Loan Bank and Federal Reserve Bank of San Francisco Stock

 

The Bank is a member of the Federal Home Loan Bank (“FHLB”), and members are required to own a certain amount of FHLB stock based on the level of borrowings and other factors. The Bank is also a member of the Federal Reserve Bank of San Francisco (“FRB”) System and is required to subscribe a certain amount of FRB stock based on the Bank's capital and surplus. The investments in FHLB and FRB stock are carried at cost and are periodically evaluated for impairment based on, among other things, the capital adequacy and overall financial condition of the FHLB and FRB. No impairment losses were recorded as of June 30, 2026.