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Investment Securities | 6 Months Ended
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Jun. 30, 2026
Investments, Debt and Equity Securities [Abstract] |
Investment Securities | INVESTMENT SECURITIES (In Thousands) The following table is the schedule of Available-For-Sale ("AFS") Securities at June 30, 2026 and December 31, 2025:
Available-For-Sale Securities
|  | U.S. Treasuries |  | U.S. Government & Agency Obligations |  | State and Municipal Obligations |  | Mortgage- Backed Securities |  | Corporate and Other Debt Securities |  |  |  | Total Available- For-Sale Securities
June 30, 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-For-Sale Securities, at Amortized Cost |  | $ | 78,614 |  |  | $ | 25,000 |  |  | $ | 160 |  |  | $ | 389,614 |  |  | $ | 26,250 |  |  |  |  | $ | 519,638 |
Gross Unrealized Gains |  | 596 |  |  | — |  |  | — |  |  | 526 |  |  | 375 |  |  |  |  | 1,497 |
Gross Unrealized Losses |  | (112) |  |  | (202) |  |  | — |  |  | (22,531) |  |  | (88) |  |  |  |  | (22,933) |
Available-For-Sale Securities, at Fair Value |  | $ | 79,098 |  |  | $ | 24,798 |  |  | $ | 160 |  |  | $ | 367,609 |  |  | $ | 26,537 |  |  |  |  | $ | 498,202 |
Available-For-Sale Securities, Pledged as Collateral, at Fair Value |  |  |  |  |  |  |  |  |  |  |  |  |  | 241,011 |
Maturities of Debt Securities, at Amortized Cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Within One Year |  | $ | — |  |  | $ | 25,000 |  |  | $ | — |  |  | $ | 145 |  |  | $ | — |  |  |  |  | $ | 25,145 |
From 1 - 5 Years |  | 73,558 |  |  | — |  |  | 160 |  |  | 47,640 |  |  | 1,000 |  |  |  |  | 122,358 |
From 5 - 10 Years |  | 5,056 |  |  | — |  |  | — |  |  | 58,516 |  |  | 25,250 |  |  |  |  | 88,822 |
Over 10 Years |  | — |  |  | — |  |  | — |  |  | 283,313 |  |  | — |  |  |  |  | 283,313 |
Maturities of Debt Securities, at Fair Value: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Within One Year |  | $ | — |  |  | $ | 24,798 |  |  | $ | — |  |  | $ | 144 |  |  | $ | — |  |  |  |  | $ | 24,942 |
From 1 - 5 Years |  | 74,153 |  |  | — |  |  | 160 |  |  | 46,481 |  |  | 976 |  |  |  |  | 121,770 |
From 5 - 10 Years |  | 4,945 |  |  | — |  |  | — |  |  | 54,111 |  |  | 25,561 |  |  |  |  | 84,617 |
Over 10 Years |  | — |  |  | — |  |  | — |  |  | 266,873 |  |  | — |  |  |  |  | 266,873 |
Securities in a Continuous Loss Position, at Fair Value: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Less than 12 Months |  | $ | 4,945 |  |  | $ | — |  |  | $ | — |  |  | $ | 104,945 |  |  | $ | 5,186 |  |  |  |  | $ | 115,076 |
12 Months or Longer |  | — |  |  | 24,798 |  |  | — |  |  | 178,912 |  |  | 976 |  |  |  |  | 204,686 |
Total |  | $ | 4,945 |  |  | $ | 24,798 |  |  | $ | — |  |  | $ | 283,857 |  |  | $ | 6,162 |  |  |  |  | $ | 319,762 |
Number of Securities in a Continuous Loss Position |  | 1 |  |  | 3 |  |  | — |  |  | 93 |  |  | 6 |  |  |  |  | 103 |
Unrealized Losses on Securities in a Continuous Loss Position: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Less than 12 Months |  | $ | 112 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,002 |  |  | $ | 64 |  |  |  |  | $ | 1,178 |
12 Months or Longer |  | — |  |  | 202 |  |  | — |  |  | 21,529 |  |  | 24 |  |  |  |  | 21,755 |
Total |  | $ | 112 |  |  | $ | 202 |  |  | $ | — |  |  | $ | 22,531 |  |  | $ | 88 |  |  |  |  | $ | 22,933 |
December 31, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-For-Sale Securities, at Amortized Cost |  | $ | 78,436 |  |  | $ | 25,000 |  |  | $ | 200 |  |  | $ | 385,766 |  |  | $ | 23,500 |  |  |  |  | $ | 512,902 |
Gross Unrealized Gains |  | 2,139 |  |  | — |  |  | — |  |  | 2,153 |  |  | 194 |  |  |  |  | 4,486 |
Gross Unrealized Losses |  | (12) |  |  | (184) |  |  | — |  |  | (21,238) |  |  | (86) |  |  |  |  | (21,520) |
Available-For-Sale Securities, at Fair Value |  | $ | 80,563 |  |  | $ | 24,816 |  |  | $ | 200 |  |  | $ | 366,681 |  |  | $ | 23,608 |  |  |  |  | $ | 495,868 |
Available-For-Sale Securities, Pledged as Collateral, at Fair Value |  |  |  |  |  |  |  |  |  |  |  |  |  | 234,933 |
Securities in a Continuous Loss Position, at Fair Value: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Less than 12 Months |  | $ | 5,047 |  |  | $ | — |  |  | $ | — |  |  | $ | 13,154 |  |  | $ | 4,436 |  |  |  |  | $ | 22,637 |
Available-For-Sale Securities
|  | U.S. Treasuries |  | U.S. Government & Agency Obligations |  | State and Municipal Obligations |  | Mortgage- Backed Securities |  | Corporate and Other Debt Securities |  |  |  | Total Available- For-Sale Securities
12 Months or Longer |  | — |  |  | 24,816 |  |  | — |  |  | 193,635 |  |  | 979 |  |  |  |  | 219,430 |
Total |  | $ | 5,047 |  |  | $ | 24,816 |  |  | $ | — |  |  | $ | 206,789 |  |  | $ | 5,415 |  |  |  |  | $ | 242,067 |
Number of Securities in a Continuous Loss Position |  | 1 |  |  | 3 |  |  | — |  |  | 83 |  |  | 4 |  |  |  |  | 91 |
Unrealized Losses on Securities in a Continuous Loss Position: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Less than 12 Months |  | $ | 12 |  |  | $ | — |  |  | $ | — |  |  | $ | 8 |  |  | $ | 64 |  |  |  |  | $ | 84 |
12 Months or Longer |  | — |  |  | 184 |  |  | — |  |  | 21,230 |  |  | 22 |  |  |  |  | 21,436 |
Total |  | $ | 12 |  |  | $ | 184 |  |  | $ | — |  |  | $ | 21,238 |  |  | $ | 86 |  |  |  |  | $ | 21,520 |
There was no allowance for credit losses for the AFS debt securities portfolio at either June 30, 2026 or December 31, 2025. The following table is the schedule of Held-To-Maturity ("HTM") Securities at June 30, 2026 and December 31, 2025:
Held-To-Maturity Securities
|  | State and Municipal Obligations |  | Mortgage- Backed Securities |  |  |  | Total Held-To Maturity Securities
June 30, 2026 |  |  |  |  |  |  |  |
Held-To-Maturity Securities, at Amortized Cost |  | $ | 62,495 |  |  | $ | 2,995 |  |  |  |  | $ | 65,490 |
Gross Unrealized Losses |  | (147) |  |  | (73) |  |  |  |  | (220) |
Held-To-Maturity Securities, at Fair Value |  | 62,348 |  |  | 2,922 |  |  |  |  | 65,270 |
Held-To-Maturity Securities, Pledged as Collateral, at Carrying Value |  |  |  |  |  |  |  | 18,048 |
Held-To-Maturity Securities, Pledged as Collateral, at Fair Value |  |  |  |  |  |  |  | 17,827 |
Maturities of Debt Securities, at Amortized Cost: |  |  |  |  |  |  |  |
Within One Year |  | $ | 53,320 |  |  | $ | — |  |  |  |  | $ | 53,320 |
From 1 - 5 Years |  | 7,950 |  |  | 1,910 |  |  |  |  | 9,860 |
From 5 - 10 Years |  | 1,225 |  |  | — |  |  |  |  | 1,225 |
Over 10 Years |  | — |  |  | 1,085 |  |  |  |  | 1,085 |
Maturities of Debt Securities, at Fair Value: |  |  |  |  |  |  |  |
Within One Year |  | $ | 53,230 |  |  | $ | — |  |  |  |  | $ | 53,230 |
From 1 - 5 Years |  | 7,894 |  |  | 1,875 |  |  |  |  | 9,769 |
From 5 - 10 Years |  | 1,224 |  |  | — |  |  |  |  | 1,224 |
Over 10 Years |  | — |  |  | 1,047 |  |  |  |  | 1,047 |
Securities in a Continuous Loss Position, at Fair Value: |  |  |  |  |  |  |  |
Less than 12 Months |  | $ | 559 |  |  | $ | — |  |  |  |  | $ | 559 |
12 Months or Longer |  | 15,671 |  |  | 2,922 |  |  |  |  | 18,593 |
Total |  | $ | 16,230 |  |  | $ | 2,922 |  |  |  |  | $ | 19,152 |
Held-To-Maturity Securities
|  | State and Municipal Obligations |  | Mortgage- Backed Securities |  |  |  | Total Held-To Maturity Securities
Number of Securities in a Continuous Loss Position |  | 60 |  |  | 16 |  |  |  |  | 76 |
Unrealized Losses on Securities in a Continuous Loss Position: |  |  |  |  |  |  |  |
Less than 12 Months |  | $ | 1 |  |  | $ | — |  |  |  |  | $ | 1 |
12 Months or Longer |  | 146 |  |  | 73 |  |  |  |  | 219 |
Total |  | $ | 147 |  |  | $ | 73 |  |  |  |  | $ | 220 |
December 31, 2025 |  |  |  |  |  |  |  |
Held-To-Maturity Securities, at Amortized Cost |  | $ | 62,870 |  |  | $ | 4,105 |  |  |  |  | $ | 66,975 |
Gross Unrealized Losses |  | (324) |  |  | (82) |  |  |  |  | (406) |
Held-To-Maturity Securities, at Fair Value |  | 62,546 |  |  | 4,023 |  |  |  |  | 66,569 |
Held-To-Maturity Securities, Pledged as Collateral, at Carrying Value |  |  |  |  |  |  |  | 35,078 |
Held-To-Maturity Securities, Pledged as Collateral, at Fair Value |  |  |  |  |  |  |  | 34,672 |
Securities in a Continuous Loss Position, at Fair Value: |  |  |  |  |  |  |  |
Less than 12 Months |  | $ | 400 |  |  | $ | — |  |  |  |  | $ | 400 |
12 Months or Longer |  | 32,138 |  |  | 4,023 |  |  |  |  | 36,161 |
Total |  | $ | 32,538 |  |  | $ | 4,023 |  |  |  |  | $ | 36,561 |
Number of Securities in a Continuous Loss Position |  | 109 |  |  | 16 |  |  |  |  | 125 |
Unrealized Losses on Securities in a Continuous Loss Position: |  |  |  |  |  |  |  |
Less than 12 Months |  | $ | — |  |  | $ | — |  |  |  |  | $ | — |
12 Months or Longer |  | 324 |  |  | 82 |  |  |  |  | 406 |
Total |  | $ | 324 |  |  | $ | 82 |  |  |  |  | $ | 406 |
In the tables above, maturities of mortgage-backed securities are included based on their contractual lives. Actual maturities will differ because issuers may have the right to call or prepay obligations with or without prepayment penalties. Securities in a continuous loss position, in the tables above for June 30, 2026 and December 31, 2025 do not reflect any material deterioration of the credit worthiness of the issuing entities. Arrow evaluates AFS debt securities in unrealized loss positions at each measurement date to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or non-credit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized within the allowance for credit losses on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings via credit loss expense. Arrow determined that at June 30, 2026 and December 31, 2025, gross unrealized losses were attributable to changes in interest rates, relative to when the investment securities were purchased, and not due to the credit quality of the investment securities. Arrow does not intend to sell, nor is it more likely than not that Arrow will be required to sell, any securities before recovery of its amortized cost basis, which may be at maturity. Therefore, Arrow carried no allowance for credit loss at June 30, 2026 or December 31, 2025 and there was no credit loss expense recognized by Arrow with respect to the securities portfolio during the six months ended June 30, 2026 or the year ended December 31, 2025. Arrow's HTM debt securities are comprised of U.S. government-sponsored enterprises (GSEs) or state and municipal obligations. GSE securities carry the explicit and/or implicit guarantee of the U.S. government, are widely recognized as “risk free,” and have a long history of zero credit loss. Arrow determined that the expected credit loss on its HTM debt portfolio was immaterial and therefore no allowance for credit loss was recorded as of June 30, 2026. The following table is the schedule of Equity Securities at June 30, 2026 and December 31, 2025:
Equity Securities
|  | June 30, 2026 | December 31, 2025 |
Equity Securities, at Fair Value |  | $5,897 | $5,597 |
The following is a summary of realized and unrealized gains and losses recognized in income on equity securities during the three and six month periods ended June 30, 2026 and 2025:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2026 |  |  |  | 2025 |  | 2026 |  | 2025 |  |
Net Gain (Loss) on Equity Securities | $ | 155 |  |  |  |  | $ | (40) |  |  | $ | 300 |  |  | $ | 277 |  |  |
Less: Net gain recognized during the reporting period on equity securities sold during the period | — |  |  |  |  | — |  |  | — |  |  | — |  |  |
Unrealized net gain (loss) recognized during the reporting period on equity securities still held at the reporting date | $ | 155 |  |  |  |  | $ | (40) |  |  | $ | 300 |  |  | $ | 277 |  |  |

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