ONTO
Onto Innovation Inc.Company with tickers: ONTO
CIK
704532
CUSIP
683344105
Shares Outstanding
49,743,567
13F Activity (30d)
292 filings
288 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
65/100
Short interest 3.9% of shares — P66
Days to cover 1.3 — P31
Short-volume trend +25.6% — P97
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 | 1,954,433 | 1,094,718 | +859,715 | 1.25 |
| 2026-05-15 | 1,094,718 | 1,007,074 | +87,644 | 1.08 |
| 2026-04-30 | 1,007,074 | 1,180,814 | -173,740 | 1.01 |
| 2026-04-15 | 1,180,814 | 1,342,354 | -161,540 | 1.69 |
| 2026-03-31 | 1,342,354 | 938,748 | +403,606 | 1.74 |
| 2026-03-13 | 938,748 | 1,165,350 | -226,602 | 1.20 |
| 2026-02-27 | 1,165,350 | 1,003,785 | +161,565 | 1.00 |
| 2026-02-13 | 1,003,785 | 1,065,200 | -61,415 | 1.02 |
| 2026-01-30 | 1,065,200 | 1,318,664 | -253,464 | 1.22 |
| 2026-01-15 | 1,318,664 | 1,295,151 | +23,513 | 1.45 |
| 2025-12-31 | 1,295,151 | 1,698,806 | -403,655 | 2.14 |
| 2025-12-15 | 1,698,806 | 1,973,103 | -274,297 | 1.93 |
| 2025-11-28 | 1,973,103 | 1,753,222 | +219,881 | 2.88 |
| 2025-11-14 | 1,753,222 | 1,596,507 | +156,715 | 1.59 |
| 2025-10-31 | 1,596,507 | 1,930,914 | -334,407 | 1.94 |
| 2025-10-15 | 1,930,914 | 2,369,651 | -438,737 | 1.34 |
| 2025-09-30 | 2,369,651 | 2,197,457 | +172,194 | 1.12 |
| 2025-09-15 | 2,197,457 | 2,056,446 | +141,011 | 1.87 |
| 2025-08-29 | 2,056,446 | 2,006,053 | +50,393 | 2.38 |
| 2025-08-15 | 2,006,053 | 2,122,682 | -116,629 | 1.05 |
| 2025-07-31 | 2,122,682 | 2,056,884 | +65,798 | 1.94 |
| 2025-07-15 | 2,056,884 | 2,134,331 | -77,447 | 2.28 |
| 2025-06-30 | 2,134,331 | 1,875,952 | +258,379 | 1.50 |
| 2025-06-13 | 1,875,952 | 1,669,263 | +206,689 | 1.77 |
Showing 1–24 of 24 settlements