Onto Innovation Inc. (ONTO)
ONTO moved a median of +0.21% 30 minutes after news, and +0.52% by the close. How ONTO actually reacts to news — the realized, point-in-time move the market made, measured across 257 labeled events over the last three years with zero look-ahead.
ONTO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.11% | 56% | 257 |
| 30-min | +0.21% | 55% | 257 |
| 60-min | +0.06% | 54% | 257 |
| to close | +0.52% | 56% | 253 |
| Middle 50% of ONTO reactions | -1.07% to +1.32% |
|---|---|
| Median reaction (30-min) | +0.21% |
| Measured reactions | 257 |
Half of all Onto Innovation Inc. news events land between -1.07% and +1.32% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ONTO reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 23 | -1.17% | 22% | -0.29% |
| Analyst downgrades | 12 | +0.26% | 50% | -0.51% |
| Coverage initiations | 22 | +0.30% | 59% | +1.20% |
| Rating reiterations | 92 | -0.01% | 49% | +0.34% |
| Price-target raises | 22 | +0.11% | 55% | +0.38% |
| Price-target cuts | 13 | +0.46% | 54% | +0.25% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. See how ONTO ranks against every other measured name →
That’s how ONTO usually reacts — get an email when it moves on news →Email me when ONTO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ONTO's baseline. Nothing else.
Recent ONTO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Onto Innovation to Report Third Quarter 2026 Financial Results on November 9, 2026 | Press release | Business Wire | -1.50% | -0.26% | |
| Onto Innovation Receives Best Partner Award from SK hynix for Hidden Defect Prevention in High Bandwidth Memory Production | Press release | Business Wire | -0.03% | -1.17% | |
| Onto Innovation Opens Registration for December 2026 Analyst Event | Press release | Business Wire | -1.35% | +0.55% | |
| Form 8-K ONTO INNOVATION INC. For: Aug 09 | SEC filing · Form 8-K | SEC EDGAR | -1.23% | — | |
| Onto Innovation Completes Strategic Investment in Rigaku Holdings Corporation | Press release | Business Wire | -1.23% | — | |
| Save the Date: Onto Innovation to Host Analyst Event and Participate in Upcoming Investor Conferences | Press release | Business Wire | -0.16% | +6.15% | |
| Form 10-Q ONTO INNOVATION INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +3.17% | +2.77% | |
| Form 8-K ONTO INNOVATION INC. For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | +3.17% | +2.77% | |
| Onto Innovation Reports 2026 Second Quarter Results | Press release | Business Wire | +3.17% | +2.77% | |
| Onto Innovation to Report Second Quarter 2026 Financial Results on August 6, 2026 | Press release | Business Wire | -0.33% | -3.38% | |
| Form SD ONTO INNOVATION INC. | SEC filing · Form SD | SEC EDGAR | -2.88% | -2.77% | |
| Form 8-K ONTO INNOVATION INC. For: May 18 | SEC filing · Form 8-K | SEC EDGAR | -2.25% | -0.98% | |
| Form 8-K ONTO INNOVATION INC. For: May 20 | SEC filing · Form 8-K | SEC EDGAR | +0.44% | +0.46% | |
| Onto Innovation to Participate in Upcoming Investor Events | Press release | Business Wire | -1.86% | -0.32% | |
| Form 8-K ONTO INNOVATION INC. For: May 18 | SEC filing · Form 8-K | SEC EDGAR | -0.79% | -4.67% | |
| Onto Innovation Announces Pricing of Upsized Private Offering of $1.3 Billion of 0.00% Convertible Senior Notes Due 2031 | Press release | Business Wire | -1.86% | -0.32% | |
| Onto Innovation Announces Proposed Private Offering of $1.1 Billion of Convertible Senior Notes Due 2031 | Press release | Business Wire | -0.79% | -4.67% | |
| Form 10-Q ONTO INNOVATION INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +2.96% | +1.40% | |
| Form 8-K ONTO INNOVATION INC. For: May 05 | SEC filing · Form 8-K | SEC EDGAR | +2.96% | +1.40% | |
| Onto Innovation Reports 2026 First Quarter Results | Press release | Business Wire | +2.96% | +1.40% | |
| Form 8-K ONTO INNOVATION INC. For: Apr 20 | SEC filing · Form 8-K | SEC EDGAR | +1.63% | -0.41% | |
| Onto Innovation Announces Strategic Partnership With Leading X-Ray Provider Rigaku To Advance Next-Generation Process Control Solutions | Press release | Business Wire | +1.63% | -0.41% | |
| Form 8-K ONTO INNOVATION INC. For: Apr 16 | SEC filing · Form 8-K | SEC EDGAR | -2.33% | -4.39% | |
| Onto Innovation to Report First Quarter 2026 Financial Results on May 5, 2026 | Press release | Business Wire | -0.12% | +2.62% | |
| Onto Innovation’s Dragonfly® G5 System Qualified for Applications in 2.5D AI Packaging | Press release | Business Wire | -2.33% | -4.39% | |
| Form ARS ONTO INNOVATION INC. For: Jan 03 | SEC filing · Form ARS | SEC EDGAR | +1.72% | -0.25% | |
| Form DEF 14A ONTO INNOVATION INC. For: Apr 06 | SEC filing · Form DEF | SEC EDGAR | +1.72% | -0.25% | |
| Form DEFA14A ONTO INNOVATION INC. | SEC filing · Form DEFA14A | SEC EDGAR | +1.72% | -0.25% | |
| Onto Innovation Launches Dragonfly® G5 Inspection System | Press release | Business Wire | +0.73% | -0.48% | |
| Onto Innovation to Participate in Upcoming Investor Events | Press release | Business Wire | -0.19% | -2.72% | |
| Form 10-K ONTO INNOVATION INC. For: Jan 03 | SEC filing · Form 10-K | SEC EDGAR | -0.43% | -1.50% | |
| Form 8-K ONTO INNOVATION INC. For: Feb 19 | SEC filing · Form 8-K | SEC EDGAR | -2.88% | -4.49% | |
| Onto Innovation Reports 2025 Fourth Quarter and Full Year Results | Press release | Business Wire | -2.88% | -4.49% | |
| Onto Innovation to Report Fourth Quarter and Full Year 2025 Financial Results on February 19, 2026 | Press release | Business Wire | +0.89% | -0.01% | |
| Onto Innovation to Participate in 28th Annual Needham Growth Conference | Press release | Business Wire | +1.08% | +0.67% | |
| Onto Innovation Receives TSMC Honor for “Excellent Production Support” | Press release | Business Wire | -1.18% | -1.58% | |
| Form RW ONTO INNOVATION INC. | SEC filing · Form RW | SEC EDGAR | +0.55% | +1.60% | |
| Form S-3ASR ONTO INNOVATION INC. | SEC filing · Form S-3ASR | SEC EDGAR | +0.55% | +1.60% | |
| Form 8-K ONTO INNOVATION INC. For: Nov 19 | SEC filing · Form 8-K | SEC EDGAR | +0.69% | +3.98% | |
| Form S-3 ONTO INNOVATION INC. | SEC filing · Form S-3 | SEC EDGAR | +0.69% | +3.98% | |
| Form S-8 ONTO INNOVATION INC. | SEC filing · Form S-8 | SEC EDGAR | +0.69% | +3.98% | |
| Form 8-K ONTO INNOVATION INC. For: Nov 17 | SEC filing · Form 8-K | SEC EDGAR | +1.86% | +1.56% | |
| Onto Innovation Completes Acquisition of Unique Materials Composition and Electrical Analysis Product Lines from Semilab International | Press release | Business Wire | +1.86% | +1.56% | |
| Onto Innovation to Participate in Upcoming Investor Events | Press release | Business Wire | -0.42% | -4.92% | |
| Form 10-Q ONTO INNOVATION INC. For: Sep 27 | SEC filing · Form 10-Q | SEC EDGAR | +9.94% | +16.91% | |
| Form 8-K ONTO INNOVATION INC. For: Nov 06 | SEC filing · Form 8-K | SEC EDGAR | +9.94% | +16.91% | |
| Onto Innovation Reports 2025 Third Quarter Results | Press release | Business Wire | +9.94% | +16.91% | |
| Onto Innovation to Report Third Quarter 2025 Financial Results on November 6, 2025 | Press release | Business Wire | +0.81% | -4.98% | |
| Form 8-K ONTO INNOVATION INC. For: Oct 09 | SEC filing · Form 8-K | SEC EDGAR | +0.55% | -11.77% | |
| Onto Innovation Invites Customers and Investors to Schedule Meetings at SEMICON® West | Press release | Business Wire | +0.63% | +1.02% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ONTO section they belong to.
Where else ONTO is measured.
ONTO earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Onto Innovation Inc.'s median reaction calculated?
Every labeled ONTO news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 257 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 55% of ONTO's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does ONTO's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.