125 calls and 44 puts traded on Nov 4, 2026, 169 contracts in total. Open interest was 813 contracts. Over the past 30 days, volume averaged 32 contracts per day. The MDU option volume chart shows volume by strike and expiration date.

MDU Resources IV rank is 15, so its 30-day implied volatility of 36.3% is near the bottom of its one-year range. Over the past year it ranged from 10.9% on Dec 22, 2025 to 181.1% on Jul 17, 2026. See the MDU implied volatility history for a longer view.

The MDU Resources put/call volume ratio was 0.35 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.82. The MDU open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for MDU Resources options about one week from expiration was $17.35, 12.7% below the $19.86 close. The MDU max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 35.5%, options price a move of about ±$0.98 (±4.9%) over the next week, a range of roughly $18.88 to $20.84 from the Nov 4, 2026 close. The MDU expected move chart shows it for every expiration date.