1.31K calls and 143 puts traded on Nov 4, 2026, 1.46K contracts in total. Open interest was 37.25K contracts. Over the past 30 days, volume averaged 1.16K contracts per day. The OLN option volume chart shows volume by strike and expiration date.

Olin IV rank is 5, so its 30-day implied volatility of 46.9% is near the bottom of its one-year range. Over the past year it ranged from 38.5% on Aug 18, 2026 to 194.1% on Jan 16, 2026. See the OLN implied volatility history for a longer view.

The Olin put/call volume ratio was 0.11 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.72. The OLN open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Olin options about one week from expiration was $17.50, 3.3% below the $18.10 close. The OLN max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 48.8%, options price a move of about ±$1.22 (±6.8%) over the next week, a range of roughly $16.88 to $19.32 from the Nov 4, 2026 close. The OLN expected move chart shows it for every expiration date.