Onto Innovation Inc. completed the acquisition of a 27% minority equity stake in Rigaku Holdings Corporation on August 10, 2026. The company purchased 61,123,436 shares from Atom Investment, L.P., an affiliate of The Carlyle Group, for approximately $720 million (113 trillion yen). Onto Innovation will account for the investment under the fair value option method and will not consolidate Rigaku’s financial results. Additionally, Onto Innovation will nominate a director to serve on Rigaku's board. This strategic investment deepens collaboration between the two companies to advance X-ray-based process control solutions for semiconductor manufacturing. Onto Innovation Inc. is a leader in process control technologies for the semiconductor industry.

Onto Innovation Inc. reported fiscal second quarter results ending June 30, 2026, with record revenue of $343.1 million, up 35.3% year-over-year and exceeding the high end of guidance. Diluted earnings per share reached $1.21, compared to $0.69 in the prior year period. The company announced a financial outlook for the third quarter ending September 30, 2026, projecting revenue between $380 million and $400 million and non-GAAP diluted EPS of $2.18 to $2.38. Onto Innovation operates in the semiconductor industry, providing process control technologies including metrology and inspection systems.