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v3.26.1

Short-Term Investments (Tables) | 3 Months Ended
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Apr. 30, 2026
Investments, Debt and Equity Securities [Abstract] |
Schedule of Short-Term Investments | As of April 30, 2026, short-term investments consisted of the following (in thousands):
| Amortized cost |  | Gross unrealized gains |  | Gross unrealized losses |  | Estimated fair value
Available-for-sale securities: |  |  |  |  |  |  |
Certificates of deposit | $ | 27,710 |  |  | $ | — |  |  | $ | (41) |  |  | $ | 27,669 |
Asset-backed securities | 204,923 |  |  | 1,091 |  |  | (48) |  |  | 205,966 |
Commercial paper | 44,755 |  |  | 1 |  |  | (3) |  |  | 44,753 |
Corporate notes and bonds | 3,293,436 |  |  | 7,838 |  |  | (11,568) |  |  | 3,289,706 |
Foreign government bonds | 219,830 |  |  | 511 |  |  | (645) |  |  | 219,696 |
Municipal securities | 41,453 |  |  | 75 |  |  | (72) |  |  | 41,456 |
U.S. agency obligations | 1,484 |  |  | 4 |  |  | — |  |  | 1,488 |
U.S. treasury securities | 1,590,298 |  |  | 1,070 |  |  | (5,963) |  |  | 1,585,405 |
Total available-for-sale securities | $ | 5,423,889 |  |  | $ | 10,590 |  |  | $ | (18,340) |  |  | $ | 5,416,139 |
As of January 31, 2026, short-term investments consisted of the following (in thousands):
| Amortized cost |  | Gross unrealized gains |  | Gross unrealized losses |  | Estimated fair value
Available-for-sale securities: |  |  |  |  |  |  |
Certificates of deposit | $ | 27,710 |  |  | $ | — |  |  | $ | (20) |  |  | $ | 27,690 |
Asset-backed securities | 260,136 |  |  | 1,912 |  |  | (131) |  |  | 261,917 |
Commercial paper | 75,367 |  |  | 8 |  |  | — |  |  | 75,375 |
Corporate notes and bonds | 3,133,825 |  |  | 21,684 |  |  | (950) |  |  | 3,154,559 |
Foreign government bonds | 232,271 |  |  | 1,206 |  |  | (76) |  |  | 233,401 |
Municipal securities | 37,231 |  |  | 222 |  |  | — |  |  | 37,453 |
U.S. agency obligations | 11,699 |  |  | 21 |  |  | — |  |  | 11,720 |
U.S. treasury securities | 1,332,382 |  |  | 5,443 |  |  | (359) |  |  | 1,337,466 |
Total available-for-sale securities | $ | 5,110,621 |  |  | $ | 30,496 |  |  | $ | (1,536) |  |  | $ | 5,139,581 |
Schedule of Estimated Fair Value of Short-Term Investments, Designated as Available-for-Sale and Classified by Contractual Maturity | The following table summarizes the estimated fair value of our short-term investments, designated as available-for-sale and classified by the contractual maturity date of the securities as of the dates shown (in thousands):
| April 30, 2026 |  | January 31, 2026
Due in one year or less | $ | 1,152,147 |  |  | $ | 1,025,871 |
Due in greater than one year | 4,263,992 |  |  | 4,113,710 |
Total | $ | 5,416,139 |  |  | $ | 5,139,581 |
Schedule of Fair Values and Gross Unrealized Loss Position of Available-for-Sale Securities Aggregated by Investment Category | The following table shows the fair values of available-for-sale securities which were in an unrealized loss position, aggregated by investment category, as of April 30, 2026 (in thousands):
| Less than 12 months |  | 12 months or greater
| Fair value |  | Gross unrealized losses |  | Fair value |  | Gross unrealized losses
Certificates of deposit | $ | 27,669 |  |  | $ | (41) |  |  | $ | — |  |  | $ | — |
Asset-backed securities | — |  |  | — |  |  | 622 |  |  | (48) |
Commercial paper | 34,796 |  |  | (3) |  |  | — |  |  | — |
Corporate notes and bonds | 1,604,542 |  |  | (11,568) |  |  | — |  |  | — |
Foreign government bonds | 111,351 |  |  | (636) |  |  | 8,048 |  |  | (10) |
Municipal securities | 11,005 |  |  | (72) |  |  | — |  |  | — |
U.S. treasury securities | 1,248,962 |  |  | (5,962) |  |  | — |  |  | — |
Total | $ | 3,038,325 |  |  | $ | (18,282) |  |  | $ | 8,670 |  |  | $ | (58) |
The following table shows the fair values of available-for-sale securities which were in an unrealized loss position, aggregated by investment category, as of January 31, 2026 (in thousands):
| Less than 12 months |  | 12 months or greater
| Fair value |  | Gross unrealized losses |  | Fair Value |  | Gross unrealized losses
Certificates of deposit | $ | 27,690 |  |  | $ | (20) |  |  | $ | — |  |  | $ | — |
Asset-backed securities | 4,091 |  |  | (80) |  |  | 1,090 |  |  | (51) |
Commercial paper | 9,960 |  |  | (1) |  |  | — |  |  | — |
Corporate notes and bonds | 425,464 |  |  | (950) |  |  | — |  |  | — |
Foreign government bonds | 69,877 |  |  | (68) |  |  | 8,049 |  |  | (8) |
Municipal securities | 580 |  |  | — |  |  | — |  |  | — |
U.S. treasury securities | 140,204 |  |  | (358) |  |  | — |  |  | — |
Total | $ | 677,866 |  |  | $ | (1,477) |  |  | $ | 9,139 |  |  | $ | (59) |

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