362 calls and 46 puts traded on Nov 4, 2026, 408 contracts in total. Open interest was 14.05K contracts. Over the past 30 days, volume averaged 327 contracts per day. The ACHC option volume chart shows volume by strike and expiration date.

Acadia Healthcare IV rank is 22, so its 30-day implied volatility of 75.3% is in the lower part of its one-year range. Over the past year it ranged from 38.4% on Sep 4, 2026 to 203.7% on Jan 16, 2026. See the ACHC implied volatility history for a longer view.

The Acadia Healthcare put/call volume ratio was 0.13 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.42. The ACHC open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Acadia Healthcare options about one week from expiration was $30.00, 6.9% below the $32.24 close. The ACHC max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 95.1%, options price a move of about ±$4.25 (±13.2%) over the next week, a range of roughly $27.99 to $36.49 from the Nov 4, 2026 close. The ACHC expected move chart shows it for every expiration date.