Onto Innovation Inc. (NYSE:ONTO) Short Interest Up 78.5% in May

Posted by Francis Steltz on Jun 17th, 2026

Onto Innovation Inc. (NYSE:ONTO – Get Free Report) saw a significant growth in short interest during the month of May. As of May 29th, there was short interest totaling 1,954,433 shares, a growth of 78.5% from the May 14th total of 1,094,718 shares. Based on an average daily trading volume, of 1,562,012 shares, the days-to-cover ratio is presently 1.3 days. Currently, 3.9% of the company’s shares are sold short.

Institutional Trading of Onto Innovation

Several hedge funds have recently added to or reduced their stakes in ONTO. Root Financial Partners LLC raised its holdings in Onto Innovation by 71.2% in the fourth quarter. Root Financial Partners LLC now owns 178 shares of the semiconductor company’s stock valued at $28,000 after acquiring an additional 74 shares in the last quarter. Transamerica Financial Advisors LLC raised its holdings in Onto Innovation by 188.5% in the fourth quarter. Transamerica Financial Advisors LLC now owns 176 shares of the semiconductor company’s stock valued at $28,000 after acquiring an additional 115 shares in the last quarter. Millstone Evans Group LLC raised its holdings in Onto Innovation by 147.8% in the first quarter. Millstone Evans Group LLC now owns 166 shares of the semiconductor company’s stock valued at $34,000 after acquiring an additional 99 shares in the last quarter. CIBC Private Wealth Group LLC raised its holdings in Onto Innovation by 109.4% in the fourth quarter. CIBC Private Wealth Group LLC now owns 245 shares of the semiconductor company’s stock valued at $39,000 after acquiring an additional 128 shares in the last quarter. Finally, Los Angeles Capital Management LLC acquired a new stake in Onto Innovation in the fourth quarter valued at approximately $39,000. Institutional investors and hedge funds own 98.35% of the company’s stock.

Analysts Set New Price Targets

A number of research analysts have commented on the stock. Stifel Nicolaus set a $350.00 target price on shares of Onto Innovation and gave the company a “buy” rating in a research report on Friday, April 17th. Morgan Stanley started coverage on shares of Onto Innovation in a research report on Sunday. They set an “overweight” rating and a $371.00 price target on the stock. Evercore reissued an “outperform” rating and set a $315.00 price target on shares of Onto Innovation in a research report on Friday, April 17th. Oppenheimer reissued an “outperform” rating on shares of Onto Innovation in a research report on Monday, June 1st. Finally, B. Riley Financial increased their price target on shares of Onto Innovation from $275.00 to $310.00 and gave the stock a “buy” rating in a research report on Monday, April 13th. Ten equities research analysts have rated the stock with a Buy rating and two have issued a Hold rating to the company’s stock. According to data from MarketBeat.com, the stock currently has an average rating of “Moderate Buy” and a consensus price target of $320.60.

Read Our Latest Stock Analysis on ONTO

Onto Innovation Stock Performance

Shares of ONTO opened at $316.49 on Wednesday. The stock has a market capitalization of $15.74 billion, a PE ratio of 147.89, a P/E/G ratio of 1.38 and a beta of 1.62. Onto Innovation has a 1 year low of $89.40 and a 1 year high of $348.76. The company’s 50-day simple moving average is $274.99 and its 200-day simple moving average is $221.01.

Onto Innovation (NYSE:ONTO – Get Free Report) last issued its quarterly earnings results on Tuesday, May 5th. The semiconductor company reported $1.42 earnings per share (EPS) for the quarter, topping the consensus estimate of $1.38 by $0.04. The business had revenue of $291.95 million for the quarter, compared to analysts’ expectations of $292.00 million. Onto Innovation had a net margin of 10.32% and a return on equity of 11.68%. The business’s quarterly revenue was up 9.5% on a year-over-year basis. During the same quarter in the prior year, the company earned $1.51 earnings per share. On average, sell-side analysts predict that Onto Innovation will post 7.11 earnings per share for the current year.

Onto Innovation Company Profile

(Get Free Report)

Onto Innovation (NYSE:ONTO) is a global supplier of advanced process control and inspection systems for semiconductor and electronics manufacturers. The company’s solutions span metrology, inspection, defect review and lithography mask repair, helping customers optimize yield, reduce costs and improve device performance. By integrating high-resolution optical and e-beam tools with sophisticated software analytics, Onto Innovation enables wafer, mask and advanced packaging producers to maintain tight process control across leading-edge nodes and specialty applications.

Key products include high-throughput wafer metrology systems, optical and e-beam defect inspection platforms, mask inspection and repair tools, and data-driven software for yield management and process optimization.