ONTO Unusual Option Activity
Onto Innovation Inc (ONTO) option volume on Nov 4, 2026 was 5.5% of open interest, in line with the 20-day average of 5.8%. Calls made up 45.4% of the volume.
ONTO Unusual Options FAQ
What makes option activity unusual?
Option activity is usually called unusual when a contract trades much more volume than its open interest, which can mean traders are opening new positions.
Is ONTO seeing unusual options activity?
On Nov 4, 2026, Onto Innovation options traded 885 contracts against 16.15K open, a volume to open interest ratio of 0.05, in line with its 20-day average. The table above lists the contracts with the highest ratios.
Are ONTO traders trading more calls or puts?
Calls made up 45.4% of Onto Innovation option volume on Nov 4, 2026, a put/call ratio of 1.20, so puts outnumber calls. The ONTO option volume chart shows calls and puts by strike.
What is Onto Innovation Inc?
Onto Innovation Inc is engaged in the design, development, manufacture, and support of high-performance control metrology, defect inspection, lithography, and data analysis systems used by microelectronics device manufacturers.