| Schedule of Marketable Securities |
As of April 30, 2024 and January 31, 2024, our marketable securities consisted of the following: | | | | | | | | | | | | | | | | | | | | | | | | | As of April 30, 2024 | | Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Estimated
Fair
Value | | | | | | | | | | (in thousands) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commercial paper | $ | 19,737 | | | $ | — | | | $ | — | | | $ | 19,737 | | | Agency bonds | 1,752,707 | | | 24 | | | (6,482) | | | 1,746,249 | | | Corporate and other debt securities | 652,318 | | | 104 | | | (2,633) | | | 649,789 | | | U.S. government agency securities | 3,032,764 | | | 4 | | | (14,488) | | | 3,018,280 | | | Treasury bills | 54,727 | | | — | | | (45) | | | 54,682 | | | Marketable securities | $ | 5,512,253 | | | $ | 132 | | | $ | (23,648) | | | $ | 5,488,737 | |
| | | | | | | | | | | | | | | | | | | | | | | | | As of January 31, 2024 | | Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Estimated
Fair
Value | | | | | | | | | | (in thousands) | | | | | | | | | | | | | | | | | | Commercial paper | $ | 41,564 | | | $ | — | | | $ | — | | | $ | 41,564 | | | Agency bonds | 1,667,601 | | | 2,426 | | | (3,344) | | | 1,666,683 | | | Corporate and other debt securities | 663,122 | | | 1,161 | | | (1,124) | | | 663,159 | | | U.S. government agency securities | 3,003,224 | | | 7,859 | | | (6,241) | | | 3,004,842 | | | Treasury bills | 27,992 | | | — | | | (7) | | | 27,985 | | | Marketable securities | $ | 5,403,503 | | | $ | 11,446 | | | $ | (10,716) | | | $ | 5,404,233 | |
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| Schedule of Contractual Maturities of Marketable Securities |
The following table presents the contractual maturities of our marketable securities as of April 30, 2024 and January 31, 2024: | | | | | | | | | | | | | As of | | April 30, 2024 | | January 31, 2024 | | | | | | (in thousands) | | Less than one year | $ | 3,017,465 | | | $ | 2,883,598 | | | Due in one to five years | 2,471,272 | | | 2,520,635 | | | Total | $ | 5,488,737 | | | $ | 5,404,233 | |
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| Schedule of Strategic Investments |
Strategic investments by form and measurement category as of April 30, 2024 were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | Measurement Category | | Fair Value | | Measurement Alternative | | Equity Method | | Total | | | | | | | | | | (in thousands) | | Equity securities | $ | 24,200 | | | $ | 299,651 | | | $ | 97,208 | | | $ | 421,059 | | | Debt securities | 3,864 | | | — | | | — | | | 3,864 | | | Strategic investments | $ | 28,064 | | | $ | 299,651 | | | $ | 97,208 | | | $ | 424,923 | |
Strategic investments by form and measurement category as of January 31, 2024 were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | Measurement Category | | Fair Value | | Measurement Alternative | | Equity Method | | Total | | | | | | | | | | (in thousands) | | Equity securities | $ | 23,160 | | | $ | 285,509 | | | $ | 96,725 | | | $ | 405,394 | | | Debt securities | 3,828 | | | — | | | — | | | 3,828 | | | Strategic investments | $ | 26,988 | | | $ | 285,509 | | | $ | 96,725 | | | $ | 409,222 | |
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