ASPN
Aspen Aerogels IncCompany with tickers: ASPN
Market Cap
$474.89M
Shares Outstanding
82,877,453
CIK
1145986
CUSIP
04523Y105
13F Activity (30d)
7 filings
4 filers
Website
Visit website
Investor Relations
Investor relations
Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Short Squeeze Score
66/100
Short interest 8.6% of shares — P86
Days to cover 5.8 — P78
Short-volume trend -3.4% — P35
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-15). Equal-weight mean of the available factors.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-06-15 | 7,110,861 | 7,089,306 | +21,555 | 5.78 |
| 2026-05-29 | 7,089,306 | 7,736,011 | -646,705 | 4.62 |
| 2026-05-15 | 7,736,011 | 7,999,553 | -263,542 | 3.12 |
| 2026-04-30 | 7,999,553 | 7,017,875 | +981,678 | 5.02 |
| 2026-04-15 | 7,017,875 | 6,232,371 | +785,504 | 5.26 |
| 2026-03-31 | 6,232,371 | 7,054,834 | -822,463 | 5.33 |
| 2026-03-13 | 7,054,834 | 7,449,281 | -394,447 | 4.47 |
| 2026-02-27 | 7,449,281 | 7,432,237 | +17,044 | 3.04 |
| 2026-02-13 | 7,432,237 | 7,597,323 | -165,086 | 6.34 |
| 2026-01-30 | 7,597,323 | 8,730,143 | -1,132,820 | 4.86 |
| 2026-01-15 | 8,730,143 | 9,150,305 | -420,162 | 5.51 |
| 2025-12-31 | 9,150,305 | 8,377,032 | +773,273 | 4.01 |
| 2025-12-15 | 8,377,032 | 8,561,660 | -184,628 | 4.84 |
| 2025-11-28 | 8,561,660 | 9,669,850 | -1,108,190 | 3.89 |
| 2025-11-14 | 9,669,850 | 8,544,699 | +1,125,151 | 2.01 |
| 2025-10-31 | 8,544,699 | 8,579,892 | -35,193 | 4.82 |
| 2025-10-15 | 8,579,892 | 10,285,318 | -1,705,426 | 3.71 |
| 2025-09-30 | 10,285,318 | 9,124,198 | +1,161,120 | 7.09 |
| 2025-09-15 | 9,124,198 | 9,301,272 | -177,074 | 5.55 |
| 2025-08-29 | 9,301,272 | 9,197,043 | +104,229 | 7.01 |
| 2025-08-15 | 9,197,043 | 8,512,189 | +684,854 | 2.68 |
| 2025-07-31 | 8,512,189 | 8,292,099 | +220,090 | 3.55 |
| 2025-07-15 | 8,292,099 | 8,944,294 | -652,195 | 5.18 |
| 2025-06-30 | 8,944,294 | 9,011,911 | -67,617 | 5.83 |
Showing 1–24 of 24 settlements