30 calls and 1 puts traded on Nov 4, 2026, 31 contracts in total. Open interest was 81 contracts. Over the past 30 days, volume averaged 3 contracts per day. The IOSP option volume chart shows volume by strike and expiration date.

Innospec IV rank is 5, so its 30-day implied volatility of 29.9% is near the bottom of its one-year range. Over the past year it ranged from 22.0% on Sep 22, 2026 to 169.7% on Jul 17, 2026. See the IOSP implied volatility history for a longer view.

The Innospec put/call volume ratio was 0.03 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.16. The IOSP open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Innospec options about one week from expiration was $91.08, 13.1% above the $80.51 close. The IOSP max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 37.1%, options price a move of about ±$4.13 (±5.1%) over the next week, a range of roughly $76.38 to $84.64 from the Nov 4, 2026 close. The IOSP expected move chart shows it for every expiration date.