Quarterly report [Sections 13 or 15(d)]

SECURITIES AND OTHER INVESTMENTS (Tables)

v3.25.3
SECURITIES AND OTHER INVESTMENTS (Tables)
9 Months Ended
Sep. 30, 2025
Amortized Cost of HTM Securities by Security Type and Credit Rating

The following table presents the amortized cost of HTM securities as of the periods ended, by security type and credit rating (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

    

Obligations of states and political

    

Corporate and other

    

Mortgage-backed

    

Total HTM

​

​

subdivisions

​

bonds

​

securities

​

securities

September 30, 2025

​

​

​

​

​

​

​

​

​

​

​

​

Credit Rating:

​

 

​

​

 

​

​

​

​

​

​

​

AAA/AA/A

​

$

777,922

​

$

—

​

$

1,794

​

$

779,716

BBB/BB/B

​

​

1,127

​

​

—

​

​

—

​

​

1,127

Not Rated – Agency (1)

​

​

—

​

​

—

​

​

65,630

​

​

65,630

Not Rated – Non-Agency (2)

​

 

9,594

​

 

2,515

​

​

25,204

​

​

37,313

Total

​

$

788,643

​

$

2,515

​

$

92,628

​

$

883,786

December 31, 2024

​

​

​

​

​

​

​

​

​

​

​

​

Credit Rating:

​

 

​

​

 

​

​

​

​

​

​

​

AAA/AA/A

​

$

686,923

​

$

—

​

$

5,748

​

$

692,671

BBB/BB/B

​

​

1,144

​

​

—

​

​

—

​

​

1,144

Not Rated – Agency (1)

​

​

—

​

​

—

​

​

64,595

​

​

64,595

Not Rated – Non-Agency (2)

​

 

9,616

​

 

3,322

​

​

32,503

​

​

45,441

Total

​

$

697,683

​

$

3,322

​

$

102,846

​

$

803,851

(1) Generally considered not to have credit risk given the government guarantees associated with these agencies.

(2) Non-agency mortgage-backed and asset-backed securities have limited credit risk, supported by most receiving a 20% simplified supervisory formula approach rating.

Gross Realized Gain and Losses on the Sale of Securities

The following table presents the gross realized gains and losses on and the proceeds from the sale of securities during the three and nine months ended September 30, (dollars in thousands):

​

​

​

​

​

​

​

​

    

Three Months Ended

    

Nine Months Ended

​

​

2025

​

2025

Realized gains (losses) (1):

 

​

  

 

​

  

Gross realized gains

​

$

4

​

$

34

Gross realized losses

​

 

—

​

 

(117)

Net realized gains (losses)

​

$

4

​

$

(83)

Proceeds from sales of securities

​

$

184

​

$

630,095

​

​

​

​

​

​

​

​

​

    

Three Months Ended

    

Nine Months Ended

​

​

2024

​

2024

Realized gains (losses) (1):

 

​

  

 

​

  

Gross realized gains

​

$

4

​

$

16

Gross realized losses

​

 

—

​

 

(6,526)

Net realized gains (losses)

​

$

4

​

$

(6,510)

Proceeds from sales of securities

​

$

102,888

​

$

620,405

(1) Includes gains (losses) on sales and calls of securities.

Available-for-sale Securities  
Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Values of Investment Securities

The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of September 30, 2025 are as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Amortized

​

Gross Unrealized

​

Estimated

​

    

Cost

    

Gains

    

(Losses)

    

Fair Value

U.S. government and agency securities

​

$

128,592

​

$

723

​

$

(34)

​

$

129,281

Obligations of states and political subdivisions

​

 

598,767

​

 

186

​

 

(117,438)

​

 

481,515

Corporate and other bonds (1)

​

 

250,663

​

 

686

​

 

(5,194)

​

 

246,155

Commercial MBS

​

 

​

​

​

​

​

​

​

​

 

​

Agency

​

​

359,154

​

 

1,148

​

 

(40,826)

​

​

319,476

Non-agency

​

​

103,325

​

 

222

​

 

(2,103)

​

​

101,444

Total commercial MBS

​

​

462,479

​

 

1,370

​

 

(42,929)

​

​

420,920

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

2,968,326

​

 

12,772

​

 

(175,713)

​

​

2,805,385

Non-agency

​

​

184,339

​

 

850

​

 

(2,854)

​

​

182,335

Total residential MBS

​

​

3,152,665

​

 

13,622

​

 

(178,567)

​

​

2,987,720

Other securities

​

 

1,932

​

 

—

​

 

—

​

 

1,932

Total AFS securities

​

$

4,595,098

​

$

16,587

​

$

(344,162)

​

$

4,267,523

(1) Other bonds include asset-backed securities.

The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, 2024 are as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Amortized

​

Gross Unrealized

​

Estimated

​

    

Cost

    

Gains

    

(Losses)

    

Fair Value

U.S. government and agency securities

​

$

65,650

​

$

390

​

$

(27)

​

$

66,013

Obligations of states and political subdivisions

​

​

597,956

​

 

84

​

 

(129,703)

​

 

468,337

Corporate and other bonds (1)

​

 

253,526

​

 

505

​

 

(9,319)

​

 

244,712

Commercial MBS

​

 

​

​

​

​

​

​

​

​

 

​

Agency

​

​

285,949

​

 

348

​

 

(44,678)

​

​

241,619

Non-agency

​

​

61,552

​

 

4

​

 

(2,110)

​

​

59,446

Total commercial MBS

​

​

347,501

​

 

352

​

 

(46,788)

​

​

301,065

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

1,478,648

​

 

1,375

​

 

(216,754)

​

​

1,263,269

Non-agency

​

​

99,622

​

 

672

​

 

(3,384)

​

​

96,910

Total residential MBS

​

​

1,578,270

​

 

2,047

​

 

(220,138)

​

​

1,360,179

Other securities

​

 

1,860

​

 

—

​

 

—

​

 

1,860

Total AFS securities

​

$

2,844,763

​

$

3,378

​

$

(405,975)

​

$

2,442,166

(1) Other bonds include asset-backed securities.

Schedule of Gross Unrealized Losses and Fair Value of Investments

The following table shows the gross unrealized losses and fair value of the Company’s AFS securities with unrealized losses, which are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position for the following periods ended (dollars in thousands).

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Less than 12 months

​

More than 12 months

​

Total

​

  

Fair

  

Unrealized

  

Fair

  

Unrealized

  

Fair

  

Unrealized

​

​

Value

​

Losses

​

Value(2)

​

Losses

​

Value

​

Losses

September 30, 2025

​

 

​

​

 

​

​

 

​

​

 

​

​

 

​

​

 

​

U.S. government and agency securities

​

$

11,861

​

$

(22)

​

$

862

​

$

(12)

​

$

12,723

​

$

(34)

Obligations of states and political subdivisions

​

​

3,711

​

​

(38)

​

​

454,035

​

​

(117,400)

​

​

457,746

​

​

(117,438)

Corporate and other bonds (1)

​

 

47,770

​

 

(69)

​

 

107,271

​

 

(5,125)

​

 

155,041

​

 

(5,194)

Commercial MBS

​

 

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

60,304

​

​

(232)

​

​

158,881

​

​

(40,594)

​

​

219,185

​

 

(40,826)

Non-agency

​

​

34,282

​

​

(279)

​

​

24,203

​

​

(1,824)

​

​

58,485

​

​

(2,103)

Total commercial MBS

​

​

94,586

​

​

(511)

​

​

183,084

​

​

(42,418)

​

​

277,670

​

​

(42,929)

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

447,134

​

​

(2,598)

​

​

887,972

​

​

(173,115)

​

​

1,335,106

​

​

(175,713)

Non-agency

​

​

68,175

​

​

(563)

​

​

26,627

​

​

(2,291)

​

​

94,802

​

​

(2,854)

Total residential MBS

​

​

515,309

​

​

(3,161)

​

​

914,599

​

​

(175,406)

​

​

1,429,908

​

​

(178,567)

Total AFS securities

​

$

673,237

​

$

(3,801)

​

$

1,659,851

​

$

(340,361)

​

$

2,333,088

​

$

(344,162)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2024

​

 

  

​

 

  

​

 

  

​

 

  

​

 

  

​

 

  

U.S. government and agency securities

​

$

1,935

​

$

(2)

​

$

1,286

​

$

(25)

​

$

3,221

​

$

(27)

Obligations of states and political subdivisions

​

​

6,560

​

​

(322)

​

​

444,056

​

​

(129,381)

​

​

450,616

​

​

(129,703)

Corporate and other bonds (1)

​

 

8,620

​

 

(27)

​

 

145,655

​

 

(9,292)

​

 

154,275

​

 

(9,319)

Commercial MBS

​

 

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

31,291

​

​

(359)

​

​

160,880

​

​

(44,319)

​

​

192,171

​

​

(44,678)

Non-agency

​

​

24,864

​

​

(1,188)

​

​

21,110

​

​

(922)

​

​

45,974

​

​

(2,110)

Total commercial MBS

​

​

56,155

​

​

(1,547)

​

​

181,990

​

​

(45,241)

​

​

238,145

​

​

(46,788)

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

104,477

​

​

(546)

​

​

895,714

​

​

(216,208)

​

​

1,000,191

​

​

(216,754)

Non-agency

​

​

6,067

​

​

(98)

​

​

27,851

​

​

(3,286)

​

​

33,918

​

​

(3,384)

Total residential MBS

​

​

110,544

​

​

(644)

​

​

923,565

​

​

(219,494)

​

​

1,034,109

​

​

(220,138)

Total AFS securities

​

$

183,814

​

$

(2,542)

​

$

1,696,552

​

$

(403,433)

​

$

1,880,366

​

$

(405,975)

(1) Other bonds include asset-backed securities.

(2) Comprised of 704 and 726 individual securities as of September 30, 2025 and December 31, 2024, respectively.

​

Schedule of Amortized Cost and Estimated Fair Value of Securities

The following table presents the amortized cost and estimated fair value of AFS securities as of the periods ended, by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

September 30, 2025

​

December 31, 2024

​

    

Amortized

    

Estimated

    

Amortized

    

Estimated

​

​

Cost

​

Fair Value

​

Cost

​

Fair Value

Due in one year or less

​

$

70,337

​

$

70,349

​

$

35,954

​

$

35,808

Due after one year through five years

​

 

296,791

​

 

297,731

​

 

215,517

​

 

215,513

Due after five years through ten years

​

 

540,107

​

 

521,978

​

 

286,487

​

 

271,443

Due after ten years

​

 

3,687,863

​

 

3,377,465

​

 

2,306,805

​

 

1,919,402

Total AFS securities

​

$

4,595,098

​

$

4,267,523

​

$

2,844,763

​

$

2,442,166

Held-to-maturity Securities  
Schedule of Amortized Cost and Estimated Fair Value of Securities

The following table presents the amortized cost and estimated fair value of HTM securities as of the periods ended by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

September 30, 2025

​

December 31, 2024

​

    

Carrying

    

Estimated

    

Carrying

    

Estimated

​

​

Value

​

Fair Value

​

Value

​

Fair Value

Due in one year or less

​

$

510

​

$

506

​

$

3,369

​

$

3,358

Due after one year through five years

​

 

18,859

​

 

19,278

​

 

18,293

​

 

18,547

Due after five years through ten years

​

 

203,197

​

 

196,852

​

 

115,243

​

 

109,358

Due after ten years

​

 

661,220

​

 

631,463

​

 

666,946

​

 

628,072

Total HTM securities

​

$

883,786

​

$

848,099

​

$

803,851

​

$

759,335

Schedule of Carrying Values, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Carrying

​

Gross Unrealized

​

Estimated

​

    

Value

    

Gains

    

(Losses)

​

Fair Value

Obligations of states and political subdivisions

​

$

788,643

​

$

1,788

​

$

(26,349)

​

$

764,082

Corporate and other bonds (1)

​

​

2,515

​

​

—

​

​

(36)

​

​

2,479

Commercial MBS

​

 

​

​

​

​

​

​

​

​

​

​

Agency

​

​

29,192

​

​

—

​

​

(5,791)

​

​

23,401

Non-agency

​

​

12,317

​

​

104

​

​

(525)

​

​

11,896

Total commercial MBS

​

​

41,509

​

​

104

​

​

(6,316)

​

​

35,297

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

36,438

​

​

—

​

​

(4,705)

​

​

31,733

Non-agency

​

​

14,681

​

​

—

​

​

(173)

​

​

14,508

Total residential MBS

​

​

51,119

​

​

—

​

​

(4,878)

​

​

46,241

Total HTM securities

​

$

883,786

​

$

1,892

​

$

(37,579)

​

$

848,099

(1) Other bonds include asset-backed securities.

​

​

The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, 2024 are as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Carrying

​

Gross Unrealized

​

Estimated

​

    

Value

    

Gains

    

(Losses)

    

Fair Value

Obligations of states and political subdivisions

​

$

697,683

​

$

715

​

$

(31,763)

​

$

666,635

Corporate and other bonds (1)

​

​

3,322

​

​

—

​

​

(82)

​

​

3,240

Commercial MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

26,787

​

​

—

​

​

(6,185)

​

​

20,602

Non-agency

​

​

17,922

​

​

28

​

​

(659)

​

​

17,291

Total commercial MBS

​

​

44,709

​

​

28

​

​

(6,844)

​

​

37,893

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

37,808

​

​

—

​

​

(6,288)

​

​

31,520

Non-agency

​

​

20,329

​

​

—

​

​

(282)

​

​

20,047

Total residential MBS

​

​

58,137

​

​

—

​

​

(6,570)

​

​

51,567

Total HTM securities

​

$

803,851

​

$

743

​

$

(45,259)

​

$

759,335

(1) Other bonds include asset-backed securities.