ACLS
Axcelis Technologies IncCompany with tickers: ACLS
CIK
1113232
CUSIP
054540208
Shares Outstanding
30,733,897
Website
https://www.axcelis.com
13F Activity (30d)
103 filings
101 filers
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
61/100
Short interest 8.3% of shares — P85
Days to cover 5.4 — P75
Short-volume trend -7.9% — P24
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-05-29). Equal-weight mean of the available factors.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-05-29 | 2,546,993 | 2,631,151 | -84,158 | 5.38 |
| 2026-05-15 | 2,631,151 | 2,990,185 | -359,034 | 3.26 |
| 2026-04-30 | 2,990,185 | 3,501,747 | -511,562 | 3.78 |
| 2026-04-15 | 3,501,747 | 3,797,370 | -295,623 | 6.09 |
| 2026-03-31 | 3,797,370 | 3,702,963 | +94,407 | 4.99 |
| 2026-03-13 | 3,702,963 | 3,698,624 | +4,339 | 5.09 |
| 2026-02-27 | 3,698,624 | 4,989,876 | -1,291,252 | 2.54 |
| 2026-02-13 | 4,989,876 | 4,751,091 | +238,785 | 6.44 |
| 2026-01-30 | 4,751,091 | 4,639,745 | +111,346 | 9.45 |
| 2026-01-15 | 4,639,745 | 4,011,398 | +628,347 | 7.66 |
| 2025-12-31 | 4,011,398 | 4,214,041 | -202,643 | 10.77 |
| 2025-12-15 | 4,214,041 | 4,071,565 | +142,476 | 7.26 |
| 2025-11-28 | 4,071,565 | 3,815,940 | +255,625 | 8.68 |
| 2025-11-14 | 3,815,940 | 4,379,799 | -563,859 | 4.94 |
| 2025-10-31 | 4,379,799 | 4,473,247 | -93,448 | 8.56 |
| 2025-10-15 | 4,473,247 | 3,961,139 | +512,108 | 4.30 |
| 2025-09-30 | 3,961,139 | 4,670,219 | -709,080 | 7.08 |
| 2025-09-15 | 4,670,219 | 4,569,189 | +101,030 | 11.32 |
| 2025-08-29 | 4,569,189 | 4,581,970 | -12,781 | 11.20 |
| 2025-08-15 | 4,581,970 | 5,284,394 | -702,424 | 6.60 |
| 2025-07-31 | 5,284,394 | 5,357,781 | -73,387 | 11.52 |
| 2025-07-15 | 5,357,781 | 5,406,017 | -48,236 | 13.75 |
| 2025-06-30 | 5,406,017 | 5,300,362 | +105,655 | 9.27 |
| 2025-06-13 | 5,300,362 | 5,443,014 | -142,652 | 7.07 |
| 2025-05-30 | 5,443,014 | 5,218,172 | +224,842 | 12.84 |
| 2025-05-15 | 5,218,172 | 5,612,077 | -393,905 | 6.60 |
| 2025-04-30 | 5,612,077 | 5,308,489 | +303,588 | 10.82 |
| 2025-04-15 | 5,308,489 | 4,684,455 | +624,034 | 5.79 |
| 2025-03-31 | 4,684,455 | 4,696,951 | -12,496 | 7.80 |
| 2025-03-14 | 4,696,951 | 4,475,009 | +221,942 | 6.65 |
| 2025-02-28 | 4,475,009 | 4,745,815 | -270,806 | 6.98 |
| 2025-02-14 | 4,745,815 | 4,685,463 | +60,352 | 4.81 |
| 2025-01-31 | 4,685,463 | 4,530,614 | +154,849 | 9.93 |
| 2025-01-15 | 4,530,614 | 4,440,520 | +90,094 | 8.82 |
| 2024-12-31 | 4,440,520 | 4,394,865 | +45,655 | 6.66 |
| 2024-12-13 | 4,394,865 | 4,373,279 | +21,586 | 9.26 |
| 2024-11-29 | 4,373,279 | 4,421,433 | -48,154 | 6.35 |
| 2024-11-15 | 4,421,433 | 4,306,838 | +114,595 | 5.69 |
| 2024-10-31 | 4,306,838 | 1,791,247 | +2,515,591 | 7.47 |
| 2024-10-15 | 1,791,247 | 2,096,516 | -305,269 | 3.31 |
| 2024-09-30 | 2,096,516 | 2,190,559 | -94,043 | 2.63 |
| 2024-09-13 | 2,190,559 | 2,026,814 | +163,745 | 4.02 |
| 2024-08-30 | 2,026,814 | 2,153,499 | -126,685 | 4.74 |
| 2024-08-15 | 2,153,499 | 2,234,734 | -81,235 | 2.67 |
| 2024-07-31 | 2,234,734 | 2,076,885 | +157,849 | 3.17 |
| 2024-07-15 | 2,076,885 | 2,189,806 | -112,921 | 3.57 |
| 2024-06-28 | 2,189,806 | 1,833,481 | +356,325 | 3.60 |
| 2024-06-14 | 1,833,481 | 2,411,176 | -577,695 | 2.93 |
| 2024-05-31 | 2,411,176 | 1,907,274 | +503,902 | 6.46 |
| 2024-05-15 | 1,907,274 | 2,034,724 | -127,450 | 3.53 |
Showing 1–50 of 120 settlements