329.05 USD
↗ 1.28 (0.39%)AFTER HOURS (AS OF Fri 08:15 PM EDT)
ONTO Stock After Hours
Onto Innovation Inc.
ONTONYSE • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
ONTO last traded at $329.05 after hours, up $1.28 (0.39%) from its regular-session close of $327.77.
📅 ONTO is expected to report earnings around Nov 5, 2026 after the close (estimated), with an estimated EPS of $2.31. ONTO earnings details →
ONTO After Hours Chart
ONTO After Hours 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)
46 days ago
2026-08-18
Gap %
-5.34%
Gap From
$351.16
% vs Current
+7.14%
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 | ||||||
| 19 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% |
Frequently Asked Questions
What is ONTO's after-hours price?
Onto Innovation (ONTO) is trading at $329.05 after hours, up $1.28 (0.39%) from its regular-session close of $327.77.
Why is ONTO moving after hours?
ONTO is up 0.39% in after-hours trading. Moves in this session almost always follow something released after the 4:00 PM ET close — an earnings report, guidance, a filing, or news — and trade on far thinner volume than the regular session, so the size of the move can overstate what the market will settle on at the next open.
When does ONTO after-hours trading start and end?
After-hours trading in ONTO on the NYSE runs from 4:00 PM to 8:00 PM ET on trading days, immediately after the regular session closes. Not every broker offers the full window, and liquidity thins sharply after about 6:30 PM ET.
Will ONTO's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and ONTO's gap history is the best guide to what happens next: 85% of ONTO gap-ups have fully filled, and 63% of gap-downs have filled over the past 5 years. Fill rates this high mean a large after-hours move is more often faded than extended.
When does ONTO report earnings?
ONTO is expected to report earnings around Nov 5, 2026 after the close (estimated), with an estimated EPS of $2.31. Earnings are the most common cause of a large after-hours move, since most companies report after the close.