119 calls and 12 puts traded on Nov 4, 2026, 131 contracts in total. Open interest was 2.04K contracts. Over the past 30 days, volume averaged 125 contracts per day. The AVA option volume chart shows volume by strike and expiration date.

Avista IV rank is 6, so its 30-day implied volatility of 17.8% is near the bottom of its one-year range. Over the past year it ranged from 9.0% on May 18, 2026 to 165.0% on Jul 17, 2026. See the AVA implied volatility history for a longer view.

The Avista put/call volume ratio was 0.10 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.44. The AVA open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Avista options about one week from expiration was $35.00, 13.0% below the $40.21 close. The AVA max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 19.3%, options price a move of about ±$1.07 (±2.7%) over the next week, a range of roughly $39.14 to $41.28 from the Nov 4, 2026 close. The AVA expected move chart shows it for every expiration date.