$ONTO
Onto Innovation Inc.
XNYS•Technology•Measuring & Controlling Devices, Nec
Why is ONTO up today? It is at $256.02 (+0.00%), and our scanner flagged it 90 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment ONTO spikes, and full due diligence on ONTO — key stats, earnings, dilution and insider activity. Free.
Get free $ONTO alerts the moment volume spikes
Our scanner flagged $ONTO 90 times in the last 30 days. Create a free account to track $ONTO, build a watchlist, and get instant unusual-volume alerts, with a full day of premium now and 5 more when you verify your email, no card needed.
No card · 5 premium days · join 800+ traders
Key Stats
- Price
- $256.02
- Change today
- +0.00%
- Previous close
- $256.37
- 52-week range
- $101.06 – $386.46
- Market cap
- $13.11B
- Shares outstanding
- 49.1M
- Short interest
- 2.6M ▼ -3% vs prior · as of 2026-08-14
- Short % of float
- 5.2%
- Days to cover
- 2.0d
- Avg daily volume
- 1.1M
- Sector
- Technology
- Industry
- Measuring & Controlling Devices, Nec
- Exchange
- XNYS
- 5mthin
- 1.3x
- 15mthin
- 1.3x
- 1hthin
- 0.5x
- 1D
- --
Get free ONTO + market alerts in your inbox
The top plays and unusual-volume catches our scanner flags, emailed to you. No account needed.
No spam. Unsubscribe anytime. Not investment advice.
Why is $ONTO moving today?
Here is the latest on ONTO from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for ONTO today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Latest filing4Insider trade (Form 4)Aug 25, 2026 · 7 days agoAnalyst data via Nasdaq. Not investment advice.
Insiders
0 buys, 1 sells last 3 months (14/15 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Lynch Susan D Director | Sold (automatic/other) | -1K | sold 27% | 3K | $302K at $302.30 | Aug 21, 26 |
Kelley Stephen Douglas Director | Acquired (grant/award) | +761 | added 14% | 6K | n/a | May 20, 26 |
Lynch Susan D Director | Acquired (grant/award) | +761 | added 26% | 4K | n/a | May 20, 26 |
Miller David Brian Director | Acquired (grant/award) | +761 | added 6.4% | 13K | n/a | May 20, 26 |
Schwartz Stephen S Director | Acquired (grant/award) | +761 | added 27% | 4K | n/a | May 20, 26 |
Seams Christopher A Director | Acquired (grant/award) | +761 | added 2.0% | 39K | n/a | May 20, 26 |
Su May Director | Acquired (grant/award) | +761 | added 11% | 8K | n/a | May 20, 26 |
Oh Yoon Ah Officer | Sold (automatic/other) | -530 | sold 2.4% | 21K | $144K at $271.77 | May 15, 26 |
Yaldaei Ramil Officer | Sold (automatic/other) | -843 | sold 4.6% | 18K | $229K at $271.77 | May 15, 26 |
Oh Yoon Ah Officer | Sold (automatic/other) | -417 | sold 1.9% | 22K | $87K at $207.50 | Mar 3, 26 |
Plisinski Michael P Officer | Sold (automatic/other) | -4K | sold 2.0% | 179K | $776K at $207.50 | Mar 3, 26 |
Yaldaei Ramil Officer | Sold (automatic/other) | -615 | sold 3.2% | 18K | $128K at $207.50 | Mar 3, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
$ONTO Sentiment
NeutralBlend of news sentiment, today’s move, and community votes. Not investment advice.
$ONTO Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
Stocks similar to ONTO
Comparable names in measuring & controlling devices, nec, closest in size first.
ONTO stock FAQ
Why is $ONTO moving today?
Here is the latest on ONTO from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for ONTO today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
What is the ONTO stock price today?
ONTO last traded at $256.02, up 0.00% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live ONTO alerts?
The ONTO Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged ONTO 90 times in the last 30 days.
What exchange is ONTO on?
ONTO (Onto Innovation Inc.) trades on XNYS, with a market cap of about $13.11B in the MEASURING & CONTROLLING DEVICES, NEC sector.
Is ONTO good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge ONTO for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.