On May 28, Onto Innovation fell 5.22% in regular trading, trading at $254.86/share, with trading volume of approximately $23.39 million.

On the news front, the company previously announced an $1.1 billion convertible senior notes offering, triggering market concerns over potential equity dilution. The stock had already plunged over 10% on the announcement. Despite a brief rebound on May 26 driven by strong Q2 revenue guidance of $320-$330 million that exceeded analyst expectations by approximately 8%, the dilution overhang has not been fully absorbed, and market sentiment turned negative again.

Meanwhile, the broader semiconductor equipment sector weakened collectively on the day. ASML fell 0.56%, Applied Materials declined 1.69%, Lam Research dropped 2.61%, and KLA-Tencor fell 2.64%, with sector-wide selling pressure further dragging down the stock.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)