YieldMax MSTR Option Income St | MSTY | NYSE | Latest report: February 27, 2026
YieldMax MSTR Option Income St (MSTY) had reported short interest of 4,459,193 shares at the latest settlement date of February 27, 2026, compared with 4,042,953 shares in the prior report. That was a change of 416.2K shares, or +10.3%. Based on reported average daily volume of 712.8K, the latest days-to-cover reading was 6.26.
ShortInterestHistory.com currently tracks 47 report entries for MSTY, covering the period from February 29, 2024 through February 27, 2026. Reported short interest during that stretch ranged from 10.6K to 46.0M shares.
Extreme edge-case readings may reflect unusually low reported average volume.
| Settlement Date | Short Interest | Prior Short Interest | Change Shares | Change % | Average Daily Volume | Days to Cover |
|---|---|---|---|---|---|---|
| February 27, 2026 | 4,459,193 | 4,042,953 | 416.2K | +10.3% | 712.8K | 6.26 |
| February 13, 2026 | 4,042,953 | 3,823,557 | 219.4K | +5.7% | 2.1M | 1.95 |
| January 30, 2026 | 3,823,557 | 5,048,227 | -1.2M | -24.3% | 1.7M | 2.27 |
| January 15, 2026 | 5,048,227 | 5,284,135 | -235.9K | -4.5% | 1.4M | 3.66 |
| December 31, 2025 | 5,284,135 | 4,593,608 | 690.5K | +15.0% | 1.5M | 3.51 |
| December 15, 2025 | 4,593,608 | 21,195,964 | -16.6M | -78.3% | 2.6M | 1.74 |
| November 28, 2025 | 21,195,964 | 23,530,125 | -2.3M | -9.9% | 11.7M | 1.81 |
| November 14, 2025 | 23,530,125 | 31,201,734 | -7.7M | -24.6% | 11.4M | 2.06 |
| October 31, 2025 | 31,201,734 | 35,343,150 | -4.1M | -11.7% | 10.1M | 3.09 |
| October 15, 2025 | 35,343,150 | 36,159,866 | -816.7K | -2.3% | 8.5M | 4.18 |
| September 15, 2025 | 34,122,588 | 37,781,230 | -3.7M | -9.7% | 8.3M | 4.09 |
| August 29, 2025 | 37,781,230 | 39,104,974 | -1.3M | -3.4% | 10.5M | 3.61 |
| August 15, 2025 | 39,104,974 | 37,684,476 | 1.4M | +3.8% | 11.2M | 3.48 |
| July 31, 2025 | 37,684,476 | 38,518,597 | -834.1K | -2.2% | 12.3M | 3.06 |
| July 15, 2025 | 38,518,597 | 46,044,914 | -7.5M | -16.4% | 11.8M | 3.26 |
| June 30, 2025 | 46,044,914 | 40,822,502 | 5.2M | +12.8% | 8.4M | 5.47 |
| June 13, 2025 | 40,822,502 | 43,639,507 | -2.8M | -6.5% | 11.9M | 3.44 |
| May 30, 2025 | 43,639,507 | 29,846,953 | 13.8M | +46.2% | 11.4M | 3.84 |
| May 15, 2025 | 29,846,953 | 24,059,930 | 5.8M | +24.1% | 11.7M | 2.56 |
| April 30, 2025 | 24,059,930 | 16,161,343 | 7.9M | +48.9% | 6.3M | 3.82 |
| April 15, 2025 | 16,161,343 | 18,799,448 | -2.6M | -14.0% | 8.0M | 2.02 |
| March 31, 2025 | 18,799,448 | 18,423,676 | 375.8K | +2.0% | 4.3M | 4.38 |
| February 28, 2025 | 15,717,247 | 16,757,110 | -1.0M | -6.2% | 7.7M | 2.05 |
| February 14, 2025 | 16,757,110 | 13,595,539 | 3.2M | +23.2% | 6.2M | 2.7 |
| January 31, 2025 | 13,595,539 | 3,972,359 | 9.6M | +242.2% | 4.7M | 2.88 |
| January 15, 2025 | 3,972,359 | 2,746,530 | 1.2M | +44.6% | 4.2M | 1 |
| December 31, 2024 | 2,746,530 | 1,423,843 | 1.3M | +92.9% | 4.7M | 1 |
| December 13, 2024 | 1,423,843 | 2,624,847 | -1.2M | -45.8% | 2.6M | 1 |
| November 29, 2024 | 2,624,847 | 2,308,473 | 316.4K | +13.7% | 5.1M | 1 |
| November 15, 2024 | 2,308,473 | 238,966 | 2.1M | +866.0% | 2.6M | 1 |
| October 31, 2024 | 238,966 | 206,307 | 32.7K | +15.8% | 2.2M | 1 |
| October 15, 2024 | 206,307 | 161,864 | 44.4K | +27.5% | 1.0M | 1 |
| September 30, 2024 | 161,864 | 212,708 | -50.8K | -23.9% | 799.1K | 1 |
| September 13, 2024 | 212,708 | 157,212 | 55.5K | +35.3% | 1.1M | 1 |
| August 30, 2024 | 157,212 | 140,840 | 16.4K | +11.6% | 820.1K | 1 |
| August 15, 2024 | 140,840 | 187,508 | -46.7K | -24.9% | 1.3M | 1 |
| July 31, 2024 | 187,508 | 408,554 | -221.0K | -54.1% | 663.9K | 1 |
| July 15, 2024 | 408,554 | 74,861 | 333.7K | +445.8% | 1.1M | 1 |
| June 28, 2024 | 74,861 | 248,036 | -173.2K | -69.8% | 726.6K | 1 |
| June 14, 2024 | 248,036 | 85,752 | 162.3K | +189.2% | 768.6K | 1 |
| May 31, 2024 | 85,752 | 109,449 | -23.7K | -21.6% | 273.8K | 1 |
| May 15, 2024 | 109,449 | 42,988 | 66.5K | +154.6% | 261.9K | 1 |
| April 30, 2024 | 42,988 | 10,587 | 32.4K | +306.1% | 257.1K | 1 |
| April 15, 2024 | 10,587 | 48,981 | -38.4K | -78.4% | 323.3K | 1 |
| March 28, 2024 | 48,981 | 51,953 | -3.0K | -5.7% | 166.3K | 1 |
| March 15, 2024 | 51,953 | 12,412 | 39.5K | +318.6% | 132.7K | 1 |
| February 29, 2024 | 12,412 | 0 | 12.4K | +100.0% | 56.2K | 1 |