3 calls and 6 puts traded on Nov 4, 2026, 9 contracts in total. Open interest was 1.84K contracts. Over the past 30 days, volume averaged 47 contracts per day. The CLB option volume chart shows volume by strike and expiration date.

Core Laboratories IV rank is 10, so its 30-day implied volatility of 50.4% is near the bottom of its one-year range. Over the past year it ranged from 33.7% on Sep 16, 2026 to 196.6% on Jul 17, 2026. See the CLB implied volatility history for a longer view.

The Core Laboratories put/call volume ratio was 2.00 on Nov 4, 2026, so puts outnumber calls. The put/call open interest ratio was 0.25. The CLB open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Core Laboratories options about one week from expiration was $10.00, 3.4% above the $9.67 close. The CLB max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 52.4%, options price a move of about ±$0.70 (±7.3%) over the next week, a range of roughly $8.97 to $10.37 from the Nov 4, 2026 close. The CLB expected move chart shows it for every expiration date.