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ONTO

ONTO INNOVATION INC.

NYSE · Technology · Semiconductors · US

$224.28
−3.31%
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Price chart
Sep 17Sep 22Sep 25Sep 30Oct 5Oct 8Oct 13Oct 16
Key dataOct 16, 2026
Open
$229.84
From 52W high
−40.74%
Volume
636813.00
Market cap
$11.01B
P/E (Fwd)
20.3x
EV/EBITDA
42.7x
P/E (TTM)
83.7x
RSI (14)
29.7
1D Return
−3.31%
YTD Return
+41.96%
SummaryUpdated Jun 1, 2026

Onto Innovation Inc. (NASDAQ:ONTO) is a semiconductor process control equipment manufacturer founded in 1940 and headquartered in Wilmington, Massachusetts. The company was formerly known as Rudolph Technologies before becoming Onto Innovation following its October 2019 initial public offering. Onto Innovation specializes in designing, developing, manufacturing, and supporting advanced process control tools that perform macro defect inspection, optical metrology, lithography systems, and process control analytical software for the global semiconductor industry.

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