ASP Isotopes Inc. (ASPI) — Short Interest History
The most recent FINRA short interest report for ASPI (settlement date April 30, 2026) shows 24,948,729 shares sold short , a change of -1.52% from the prior report .
Days to cover: 6.60.
Short interest history for ASPI
| Settlement date | Short interest | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| Apr 30, 2026 | 24,948,729 | -1.52% | 3,780,221 | 6.60 |
| Apr 15, 2026 | 25,332,791 | -0.54% | 4,313,938 | 5.87 |
| Mar 31, 2026 | 25,469,515 | 13.51% | 5,224,692 | 4.87 |
| Mar 13, 2026 | 22,437,204 | -7.77% | 5,601,491 | 4.01 |
| Feb 27, 2026 | 24,326,781 | 7.36% | 2,819,566 | 8.63 |
| Feb 13, 2026 | 22,658,515 | 10.06% | 4,781,569 | 4.74 |
| Jan 30, 2026 | 20,587,124 | -2.95% | 6,875,352 | 2.99 |
| Jan 15, 2026 | 21,212,899 | 2.68% | 6,449,744 | 3.29 |
| Dec 31, 2025 | 20,658,615 | 1.27% | 5,131,253 | 4.03 |
| Dec 15, 2025 | 20,400,115 | 8.47% | 5,552,176 | 3.67 |
| Nov 28, 2025 | 18,807,461 | 0.66% | 7,136,773 | 2.64 |
| Nov 14, 2025 | 18,685,049 | 6.51% | 6,909,045 | 2.70 |
| Oct 31, 2025 | 17,543,519 | 10.90% | 8,962,575 | 1.96 |
| Oct 15, 2025 | 15,818,701 | -1.63% | 11,602,248 | 1.36 |
| Sep 30, 2025 | 16,080,150 | -2.28% | 6,216,181 | 2.59 |
| Sep 15, 2025 | 16,456,056 | 6.49% | 4,224,150 | 3.90 |
| Aug 29, 2025 | 15,452,460 | 8.67% | 4,768,720 | 3.24 |
| Aug 15, 2025 | 14,219,587 | 7.98% | 4,178,955 | 3.40 |
| Jul 31, 2025 | 13,168,795 | -19.40% | 5,907,867 | 2.23 |
| Jul 15, 2025 | 16,337,928 | 6.84% | 3,174,329 | 5.15 |
| Jun 30, 2025 | 15,291,713 | 3.90% | 3,753,894 | 4.07 |
| Jun 13, 2025 | 14,717,499 | 3.84% | 4,389,496 | 3.35 |
| May 30, 2025 | 14,173,425 | -13.89% | 6,117,311 | 2.32 |
| May 15, 2025 | 16,459,891 | 3.23% | 1,715,810 | 9.59 |
| Apr 30, 2025 | 15,944,918 | -2.20% | 1,597,864 | 9.98 |
Frequently asked questions
- What is short interest in ASPI?
- Short interest is the total number of ASPI shares currently sold short but not yet covered or closed out. FINRA publishes this data twice monthly.
- How is ASPI short interest calculated?
- Short interest is aggregated from member firm reports to FINRA. Every U.S. broker-dealer must report aggregate short positions in each security as of the 15th and last trading day of each month.
- What does a high short interest mean?
- Higher short interest can indicate bearish sentiment, but it also raises the potential for a short squeeze if positive news forces short sellers to cover their positions simultaneously. Compare short interest to float (short percent of float) for context.