| INVESTMENT SECURITIES |
Investment Securities The amortized cost and gross unrealized gains (losses) of marketable investment securities accounted under the fair value method were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized (Losses) | | Fair Value | | Corporate debt securities | $ | 94,394 | | | $ | 510 | | | $ | (30) | | | $ | 94,874 | | | U.S. treasury securities | 32,277 | | | 157 | | | (78) | | | 32,356 | | | Common stock | 14 | | | — | | | — | | | 14 | | | Certificates of deposit | 356 | | | — | | | — | | | 356 | | | Total securities with unrealized gains/(losses) | $ | 127,041 | | | $ | 667 | | | $ | (108) | | | $ | 127,600 | |
| | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2025 | | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized (Losses) | | Fair Value | | Corporate debt securities | $ | 177,687 | | | $ | 627 | | | $ | (164) | | | $ | 178,150 | | | U.S. treasury securities | 17,044 | | | 17 | | | (157) | | | 16,904 | | | Common stock | 21 | | | — | | | — | | | 21 | | | Certificates of deposit | 549 | | | — | | | — | | | 549 | | | Total securities with unrealized gains/(losses) | $ | 195,301 | | | $ | 644 | | | $ | (321) | | | $ | 195,624 | |
Scheduled maturities of the debt securities held by the Company included within the investment securities portfolio were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | March 31, 2025 | | Amortized Cost | | Estimated Fair Value | | Amortized Cost | | Estimated Fair Value | | Due within one year | $ | 83,819 | | | $ | 84,143 | | | $ | 166,799 | | | $ | 167,328 | | | Due within years two through five | 43,208 | | | 43,443 | | | 28,502 | | | 28,296 | | | Total debt within the investment securities portfolio | $ | 127,027 | | | $ | 127,586 | | | $ | 195,301 | | | $ | 195,624 | |
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