1.5K calls and 15 puts traded on Nov 4, 2026, 1.51K contracts in total. Open interest was 20.12K contracts. Over the past 30 days, volume averaged 891 contracts per day. The COHU option volume chart shows volume by strike and expiration date.

Cohu IV rank is 22, so its 30-day implied volatility of 81.9% is in the lower part of its one-year range. Over the past year it ranged from 41.9% on Dec 22, 2025 to 219.8% on Jul 17, 2026. See the COHU implied volatility history for a longer view.

The Cohu put/call volume ratio was 0.01 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.22. The COHU open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Cohu options about one week from expiration was $50.23, 14.3% above the $43.95 close. The COHU max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 85.0%, options price a move of about ±$5.17 (±11.8%) over the next week, a range of roughly $38.78 to $49.12 from the Nov 4, 2026 close. The COHU expected move chart shows it for every expiration date.