Rigaku Holdings Corporation

Onto Innovation has emerged as a key beneficiary of the AI semiconductor investment cycle, with its stock jumping 125.6% in a year, roughly matching the Zacks Nanotechnology industry's 125.7% gain and outpacing the Zacks Computer and Technology sector and the S&P 500 composite, which rose 26% and 15.5%, respectively. The company reported record second-quarter revenue of $343.1 million, up 35.3% year over year and nearly 18% sequentially, with non-GAAP earnings per share of $1.93 versus $1.25 a year earlier, while backlog exceeded $1 billion for the first time. Management raised its second-half 2026 revenue, margin and EPS outlook, guiding third-quarter revenue of $380 to $400 million and expecting gross margin to expand by another 50 basis points in each of the third and fourth quarters, with operating margin improving 200 basis points to 31.5-32.5% in the third quarter and exceeding 33% by year-end. The company also raised its 2026 advanced-packaging growth outlook to at least 80% from more than 50% previously and now expects advanced-nodes revenue to grow more than 35% in 2026, up from about 25%, helped by its Dragonfly G5 platform and more than $200 million in Dragonfly orders from a single OSAT, mostly for 2027 delivery. In April 2026, Onto Innovation agreed to acquire a 27% stake in Rigaku Holdings for about $710 million, and it ended the second quarter with $1.88 billion in cash and short-term investments, though risks include customer concentration, with four customers accounting for 57.3% of first-half 2026 revenue, and a forward price/earnings multiple of 30.23X versus the industry's 5.83X.