ONTO short interest
Onto Innovation Inc. · Technology · Semiconductors · settlement date 2026-09-30
| Shares short | 2,966,319 |
|---|---|
| Change vs prior report | 225,526 (+8.2%) |
| Change over six months | +121.0% |
| Days to cover | 3.99 (sector: 2.83) |
| Average daily volume | 743,949 |
| Rank in Technology | #292 of 719 by days to cover |
ONTO short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 2,966,319 | +8.2% | 3.99 | 743,949 |
| 2026-09-15 | 2,740,793 | +11.2% | 2.94 | 932,334 |
| 2026-08-31 | 2,465,735 | -3.6% | 2.66 | 925,518 |
| 2026-08-14 | 2,559,029 | -3.3% | 2.04 | 1,252,254 |
| 2026-07-31 | 2,646,567 | -1.4% | 2.28 | 1,159,491 |
| 2026-07-15 | 2,685,107 | +2.2% | 2.03 | 1,321,092 |
| 2026-06-30 | 2,626,188 | +2.1% | 1.65 | 1,591,792 |
| 2026-06-15 | 2,572,571 | +31.6% | 1.97 | 1,302,883 |
| 2026-05-29 | 1,954,433 | +78.5% | 1.25 | 1,562,012 |
| 2026-05-15 | 1,094,718 | +8.7% | 1.08 | 1,015,813 |
| 2026-04-30 | 1,007,074 | -14.7% | 1.01 | 994,427 |
| 2026-04-15 | 1,180,814 | -12.0% | 1.69 | 698,633 |
| 2026-03-31 | 1,342,354 | +43.0% | 1.74 | 772,152 |
| 2026-03-13 | 938,748 | -19.4% | 1.20 | 780,673 |
| 2026-02-27 | 1,165,350 | +16.1% | 1.00 | 1,255,895 |
| 2026-02-13 | 1,003,785 | -5.8% | 1.02 | 984,118 |
| 2026-01-30 | 1,065,200 | -19.2% | 1.22 | 873,760 |
| 2026-01-15 | 1,318,664 | +1.8% | 1.45 | 910,295 |
| 2025-12-31 | 1,295,151 | -23.8% | 2.14 | 605,527 |
| 2025-12-15 | 1,698,806 | -13.9% | 1.93 | 878,507 |
| 2025-11-28 | 1,973,103 | +12.5% | 2.88 | 684,830 |
| 2025-11-14 | 1,753,222 | +9.8% | 1.59 | 1,100,713 |
| 2025-10-31 | 1,596,507 | -17.3% | 1.94 | 822,177 |
| 2025-10-15 | 1,930,914 | -18.5% | 1.34 | 1,442,169 |
| 2025-09-30 | 2,369,651 | +7.8% | 1.12 | 2,120,467 |
import finzdata as yf
yf.Ticker("ONTO").short_interest # every report since 2017
yf.Client().short_interest(["ONTO"], start="2018-01-01")Technology short interest · ONTO price history · Who owns ONTO · All short interest