Why Onto Innovation (ONTO) Stock Is Down Today

Onto Innovation (ONTO) is down 6.4% today. Here is some analysis on what might have caused this price movement.

Analysis: A clear company-specific negative catalyst is not obvious, so this looks like a mix of profit-taking and a reset after a strong recent run in semiconductor equipment names. This could also be because traders are digesting a recent insider sale and rotating out of higher-valuation chip-tool stocks after the group’s latest rally.

Details:

Onto Innovation last reported strong second-quarter results, including record quarterly revenue, improving margins, and third-quarter guidance that called for another sequential step up in sales.

The company said backlog moved above $1 billion for the first time, reinforcing the idea that today’s drop does not appear to be tied to a weak fundamental update from the business itself.

A Form 4 filed this week showed director Susan D. Lynch sold 1,000 shares on August 21, a modest transaction but one that can still weigh on short-term sentiment when a stock has rallied sharply.

Onto Innovation also had investor conference appearances scheduled this week, yet there does not appear to be a widely cited new announcement from those events, which leaves broader semiconductor-sector volatility and simple profit-taking as the most likely explanation.

Sources:

SEC, Onto Innovation, MarketBeat

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$ONTO Insider Trading Activity

$ONTO insiders have traded $ONTO stock on the open market 1 times in the past 6 months. Of those trades, 0 have been purchases and 1 have been sales.

Here’s a breakdown of recent trading of $ONTO stock by insiders over the last 6 months:

SUSAN D LYNCH sold 1,000 shares for an estimated $302,300

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

$ONTO Hedge Fund Activity

We have seen 378 institutional investors add shares of $ONTO stock to their portfolio, and 306 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC removed 1,061,210 shares (-61.5%) from their portfolio in Q2 2026, for an estimated $401,614,924
INVESCO LTD. added 719,083 shares (+113.6%) to their portfolio in Q2 2026, for an estimated $272,136,961
PICTET ASSET MANAGEMENT HOLDING SA added 699,880 shares (+4284.3%) to their portfolio in Q2 2026, for an estimated $264,869,586
JANE STREET GROUP, LLC removed 601,373 shares (-99.5%) from their portfolio in Q2 2026, for an estimated $227,589,611
SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P. added 509,528 shares (+inf%) to their portfolio in Q2 2026, for an estimated $192,830,871
POLAR CAPITAL HOLDINGS PLC added 406,645 shares (+inf%) to their portfolio in Q2 2026, for an estimated $153,894,800
PHOENIX FINANCIAL LTD. added 401,813 shares (+inf%) to their portfolio in Q2 2026, for an estimated $152,066,129

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

$ONTO Government Contracts

We have seen $3,979,278 of award payments to $ONTO over the last year.

Here are some of the awards which we have have seen pay out the most over the last year:

GEOPHYSICAL FIELD SYSTEMS TECHNOLOGY REFRESH: $673,266
SEISMIC EQUIPMENT: $310,216

To track government contracts to publicy traded companies, check out Quiver Quantitative's government contracts dashboard. You can access data on government contracts through the Quiver Quantitative API government contracts endpoint.

$ONTO Analyst Ratings

Wall Street analysts have issued reports on $ONTO in the last several months. We have seen 1 firms issue buy ratings on the stock, and 0 firms issue sell ratings.

Here are some recent analyst ratings:

Deutsche Bank issued a "Buy" rating on 06/05/2026

To track analyst ratings and price targets for $ONTO, check out Quiver Quantitative's $ONTO forecast page.

$ONTO Price Targets

Multiple analysts have issued price targets for $ONTO recently. We have seen 9 analysts offer price targets for $ONTO in the last 6 months, with a median target of $350.0.

Here are some recent targets:

C.J. Muse from Cantor Fitzgerald set a target price of $410.0 on 06/29/2026
Edward Yang from Oppenheimer set a target price of $450.0 on 06/22/2026
Nazerke Baimukan from Freedom Broker set a target price of $370.0 on 06/17/2026
Melissa Weathers from Deutsche Bank set a target price of $350.0 on 06/05/2026
Charles Shi from Needham set a target price of $330.0 on 05/06/2026
Brian Chin from Stifel set a target price of $350.0 on 04/17/2026
Mark Lipacis from Evercore ISI Group set a target price of $315.0 on 04/17/2026

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.