402 calls and 483 puts traded on Nov 4, 2026, 885 contracts in total. Open interest was 16.15K contracts. Over the past 30 days, volume averaged 806 contracts per day. The ONTO option volume chart shows volume by strike and expiration date.

Onto Innovation IV rank is 30, so its 30-day implied volatility of 89.2% is in the lower part of its one-year range. Over the past year it ranged from 43.6% on Dec 26, 2025 to 193.8% on Jan 16, 2026. See the ONTO implied volatility history for a longer view.

The Onto Innovation put/call volume ratio was 1.20 on Nov 4, 2026, so puts outnumber calls. The put/call open interest ratio was 0.74. The ONTO open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Onto Innovation options about one week from expiration was $238.29, 29.0% above the $184.72 close. The ONTO max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 98.2%, options price a move of about ±$25.13 (±13.6%) over the next week, a range of roughly $159.59 to $209.85 from the Nov 4, 2026 close. The ONTO expected move chart shows it for every expiration date.