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Investments (Tables) | 6 Months Ended
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Nov. 01, 2025
Investments |
Schedule of investments | Investments consist of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | November 1, | ​ | April 30, | ​
​ |  | 2025 |  | 2025 |
Short-term investments: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-sale securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government securities | ​ | ​ | 160,928 | ​ | ​ | — | ​
Corporate securities | ​ | ​ | 68,118 | ​ | ​ | — | ​
Total short-term investments | ​ | ​ | 229,046 | ​ | ​ | — | ​
Long-term investments: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-sale securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government securities | ​ | ​ | 35,228 | ​ | ​ | — | ​
Equity securities and warrants | ​ | ​ | 10,055 | ​ | ​ | 1,204 | ​
Total long-term available-for-sale securities investments | ​ |  | 45,283 | ​ |  | 1,204 | ​
Equity method investments | ​ | ​ | ​ | ​ | ​ | ​ | ​
Investments in limited partnership funds | ​ |  | 35,687 | ​ |  | 30,423 | ​
Total equity method investments | ​ |  | 35,687 | ​ |  | 30,423 | ​
Total long-term investments | ​ | $ | 80,970 | ​ | $ | 31,627 | ​
Schedule of activity related to the available-for-sale investments recorded in short-term and long-term investments | The following table is a summary of the activity related to the available-for-sale investments recorded in short-term and long-term investments as of November 1, 2025 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | November 1, 2025
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
​ | ​ | Cost |  | Gains | ​ | Losses | ​ | Value
Corporate securities | ​ | $ | 68,185 | ​ | $ | — | ​ | $ | (67) | ​ | $ | 68,118
U.S. government securities | ​ | ​ | 196,232 | ​ | ​ | 5 | ​ | ​ | (81) | ​ | ​ | 196,156
Total available-for-sale securities | ​ | $ | 264,417 | ​ | $ | 5 | ​ | $ | (148) | ​ | $ | 264,274
​
Schedule of unrealized gain (loss) recorded | Unrealized gain (loss) recorded (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Three Months Ended | ​ | Six Months Ended | ​ | Six Months Ended
​ | ​ | November 1, 2025 | ​ | October 26, 2024 | ​ | November 1, 2025 | ​ | October 26, 2024
Net gain (loss) recognized during the period on equity securities | ​ | $ | 6,150 | ​ | $ | 54 | ​ | $ | 8,851 | ​ | $ | (267)
Less: Net loss recognized during the period on equity securities sold during the period | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Unrealized gain (loss) recognized during the period on equity securities still held at the reporting date | ​ | $ | 6,150 | ​ | $ | 54 | ​ | $ | 8,851 | ​ | $ | (267)
​

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