ACIW · Aci Worldwide, Inc.
$56.25
+1.72 (+3.15%)
Market Cap
$5.54B
Shares
101.66M
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
63/100
Short interest 4.9% of shares — P72
Days to cover 3.9 — P71
Price vs VWAP +13.5% — P93
Short-volume trend -9.4% — P20
Short interest change +17.7% — P75
Worst FTD 0.00% of shares — P28
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-30). Weighted mean of the available factors (short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, fails-to-deliver 10%) plus catalyst boosts (price spike, volume surge, earnings within days), capped at +20 and clamped to 100.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-06-30 | 4,942,941 | 4,199,810 | +743,131 | 3.92 |
| 2026-06-15 | 4,199,810 | 4,270,373 | -70,563 | 4.83 |
| 2026-05-29 | 4,270,373 | 4,784,517 | -514,144 | 6.48 |
| 2026-05-15 | 4,784,517 | 4,283,186 | +501,331 | 6.21 |
| 2026-04-30 | 4,283,186 | 4,296,142 | -12,956 | 5.20 |
| 2026-04-15 | 4,296,142 | 4,083,718 | +212,424 | 6.75 |
| 2026-03-31 | 4,083,718 | 3,820,648 | +263,070 | 5.66 |
| 2026-03-13 | 3,820,648 | 3,716,093 | +104,555 | 4.59 |
| 2026-02-27 | 3,716,093 | 3,557,743 | +158,350 | 3.51 |
| 2026-02-13 | 3,557,743 | 4,058,163 | -500,420 | 3.55 |
| 2026-01-30 | 4,058,163 | 3,930,870 | +127,293 | 5.84 |
| 2026-01-15 | 3,930,870 | 3,582,259 | +348,611 | 6.16 |
| 2025-12-31 | 3,582,259 | 4,254,600 | -672,341 | 5.10 |
| 2025-12-15 | 4,254,600 | 4,159,667 | +94,933 | 6.05 |
| 2025-11-28 | 4,159,667 | 4,208,235 | -48,568 | 5.98 |
| 2025-11-14 | 4,208,235 | 3,388,498 | +819,737 | 5.05 |
| 2025-10-31 | 3,388,498 | 2,920,623 | +467,875 | 4.90 |
| 2025-10-15 | 2,920,623 | 2,957,483 | -36,860 | 5.01 |
| 2025-09-30 | 2,957,483 | 3,369,042 | -411,559 | 2.94 |
| 2025-09-15 | 3,369,042 | 3,454,225 | -85,183 | 3.73 |
| 2025-08-29 | 3,454,225 | 2,942,889 | +511,336 | 4.16 |
| 2025-08-15 | 2,942,889 | 2,740,299 | +202,590 | 2.82 |
| 2025-07-31 | 2,740,299 | 2,655,677 | +84,622 | 3.52 |
Showing 1–23 of 23 settlements
Key facts
CIK
935036
CUSIP
004498101
13F (30d)
65 filings
64 filers
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