328.00 USD
↗ 2.59 (0.80%)PRE MARKET (AS OF 09:29 AM EDT)
ONTO Stock Premarket
Onto Innovation Inc.
ONTONYSE • USD
Market: OPEN
Premarket trading runs 4:00 AM – 9:30 AM ET.
ONTO last traded at $328.00 in premarket, up $2.59 (0.80%) from its previous close of $325.41.
📅 ONTO is expected to report earnings around Nov 5, 2026 after the close (estimated), with an estimated EPS of $2.30. ONTO earnings details →
ONTO Premarket Chart
ONTO Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, ONTO has had 42 qualifying gap events (gaps of 5% or more at the open) — 26 gap-ups and 16 gap-downs. Gap-ups averaged +7.1%, 85% have fully filled, median time to fill 10 trading days. Gap-downs averaged -7.7%, 63% have fully filled, median time to fill 3.5 trading days. Most recent: a -8.8% gap down on Sep 14, 2026, which filled in 7 trading days. ONTO has 1 unfilled gap from the past 60 days — a -5.3% gap down on Aug 18, 2026, currently 35% retraced. Average 20-trading-day return after a ONTO gap up: -0.89%. After a gap down: -5.06%.
Gap Ups26 events
Fill Rate
84.6%
Avg Gap
7.1%
Avg 50% Fill
2.5d
Avg Fill
10d
Gap Downs16 events
Fill Rate
62.5%
Avg Gap
7.7%
Avg 50% Fill
2.5d
Avg Fill
3.5d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 65% | 85% | 85% | 92% |
| fills 50% | 23% | 65% | 73% | 85% |
| fills 75% | 12% | 50% | 54% | 85% |
| fills 100% | 4% | 38% | 42% | 69% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 50% | 69% | 75% | 75% |
| fills 50% | 31% | 69% | 69% | 75% |
| fills 75% | 25% | 63% | 63% | 63% |
| fills 100% | 19% | 44% | 50% | 50% |
Active Unfilled Gaps (past 60 days)
49 days ago
2026-08-18
Gap %
-5.34%
Gap From
$351.16
% vs Current
+7.91%
retraced 35% to $339.04
Complete Gap History — 42 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 22 days ago | $281.26 | -8.84% | Filled | 6d | 7d | 29% | 83% | 100% | 100% |
| 2026-08-18 | $351.16 | -5.34% | Open | — | — | 17% | 17% | 17% | 17% |
| 2026-08-07 | $268.70 | +11.65% | Filled | 12d | 17d | 16% | 29% | 43% | 100% |
| 2026-08-04 | $268.49 | +5.40% | Filled | 2d | 3d | 6% | 100% | 100% | 100% |
| 2026-07-30 | $218.31 | +9.24% | Open | — | — | 2% | 2% | 2% | 2% |
| 2026-07-21 | $278.54 | +6.03% | Filled | 4d | 4d | 45% | 100% | 100% | 100% |
| 2026-07-17 | $281.61 | -5.90% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-07-14 | $304.21 | +6.69% | Filled | 1d | 2d | 51% | 100% | 100% | 100% |
| 2026-07-09 | $291.45 | +7.61% | Filled | 3d | 6d | 0% | 100% | 100% | 100% |
| 2026-07-07 | $303.86 | -6.03% | Filled | 2d | 3d | 35% | 100% | 100% | 100% |
| 2026-07-01 | $378.45 | -5.44% | Open | — | — | 9% | 9% | 9% | 9% |
| 2026-06-25 | $322.24 | +6.24% | Filled | 1d | 2d | 78% | 100% | 100% | 100% |
| 2026-06-23 | $347.87 | -7.84% | Filled | 3d | 3d | 11% | 100% | 100% | 100% |
| 2026-06-18 | $318.92 | +5.98% | Filled | 3d | 3d | 31% | 100% | 100% | 100% |
| 2026-06-09 | $268.99 | +7.81% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-06-08 | $253.24 | +5.09% | Filled | 2d | 34d | 32% | 78% | 78% | 78% |
| 2026-05-06 | $305.00 | -5.74% | Filled | 1d | 27d | 96% | 96% | 96% | 96% |
| 2026-04-28 | $298.28 | -6.30% | Filled | 3d | 4d | 47% | 100% | 100% | 100% |
| 2026-04-17 | $267.15 | +6.06% | Filled | 8d | 18d | 28% | 28% | 52% | 100% |
| 2026-04-16 | $258.90 | +11.24% | Filled | 1d | 23d | 78% | 78% | 78% | 78% |
| 2026-04-08 | $219.11 | +8.23% | Open | — | — | 40% | 40% | 40% | 40% |
| 2026-01-15 | $202.21 | +8.45% | Filled | 6d | 7d | 21% | 85% | 100% | 100% |
| 2025-11-07 | $131.75 | -9.70% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-10-13 | $121.34 | +5.91% | Filled | 2d | 20d | 21% | 56% | 95% | 100% |
| 2025-09-23 | $130.12 | +5.74% | Filled | 2d | 3d | 31% | 100% | 100% | 100% |
| 2025-09-18 | $116.00 | +5.93% | Open | 37d | — | 33% | 33% | 33% | 33% |
| 2025-05-12 | $88.50 | +6.16% | Open | 1d | — | 51% | 51% | 55% | 78% |
| 2025-05-09 | $126.81 | -21.22% | Open | — | — | 1% | 16% | 16% | 16% |
| 2025-04-23 | $114.21 | +7.16% | Filled | 6d | 13d | 39% | 72% | 72% | 100% |
| 2025-04-10 | $133.37 | -7.18% | Open | 16d | — | 20% | 20% | 36% | 67% |
| 2025-04-03 | $125.43 | -5.92% | Filled | 5d | 5d | 21% | 100% | 100% | 100% |
| 2025-02-07 | $210.59 | -6.10% | Open | — | — | 9% | 9% | 9% | 9% |
| 2025-01-27 | $213.59 | -7.77% | Open | 4d | — | 4% | 92% | 94% | 94% |
| 2024-11-01 | $198.33 | -5.45% | Filled | 1d | 49d | 51% | 51% | 51% | 51% |
| 2024-09-26 | $203.51 | +9.36% | Filled | 2d | 4d | 46% | 100% | 100% | 100% |
| 2024-09-19 | $187.77 | +5.06% | Filled | 32d | 32d | 25% | 25% | 25% | 25% |
| 2024-08-09 | $177.81 | +6.86% | Filled | 18d | 20d | 0% | 19% | 19% | 100% |
| 2024-08-05 | $158.45 | -7.86% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-07-31 | $177.89 | +6.00% | Filled | 2d | 2d | 48% | 100% | 100% | 100% |
| 2024-05-10 | $208.42 | +8.99% | Filled | 1d | 17d | 64% | 64% | 64% | 100% |
| 2022-11-10 | $74.58 | +5.39% | Filled | 12d | 25d | 21% | 21% | 21% | 96% |
| 2022-08-10 | $74.81 | +5.25% | Filled | 9d | 14d | 35% | 38% | 67% | 100% |
Related: ONTO quote & chart · After hours · Technical analysis · Fundamentals · Earnings · Short interest
Frequently Asked Questions
What is ONTO's premarket price?
Onto Innovation (ONTO) is trading at $328.00 in premarket, up $2.59 (0.80%) from the previous close of $325.41.
Why is ONTO moving in premarket?
Onto Innovation (ONTO) is up 0.80% from its previous close in premarket trading. Premarket moves are usually driven by company-specific news, earnings results, analyst rating or price-target changes, or broad market and sector sentiment. Check the latest ONTO premarket headlines and gap history below for the likely catalyst.
When does ONTO premarket trading start?
Premarket trading for ONTO on the NYSE runs from 4:00 AM to 9:30 AM Eastern Time, ahead of the regular session (9:30 AM – 4:00 PM ET). After-hours runs from 4:00 PM to 8:00 PM ET.
How often does ONTO fill its gaps?
Over the past 5 years, 85% of ONTO gap-ups have fully filled and 63% of gap-downs have filled. Median time to fill is 10 trading days for gap-ups and 4 trading days for gap-downs.
Does ONTO have any unfilled gaps?
Yes. ONTO has 1 unfilled gap from the past 60 days. The largest is a -5.3% gap down from Aug 18, 2026 and is currently 35% retraced.
What's the average return after a ONTO gap?
Based on 42 qualifying gap events over the past 5 years, the average 20-trading-day return after a ONTO gap up is -0.89%, and after a gap down is -5.06%.
When does ONTO report earnings?
ONTO is expected to report earnings around Nov 5, 2026 after the close (estimated), with an estimated EPS of $2.30.