8.52K calls and 6.74K puts traded on Nov 4, 2026, 15.26K contracts in total. Open interest was 295.33K contracts. Over the past 30 days, volume averaged 12.83K contracts per day. The KMI option volume chart shows volume by strike and expiration date.

Kinder Morgan IV rank is 57, so its 30-day implied volatility of 25.5% is near the middle of its one-year range. Over the past year it ranged from 18.4% on Dec 30, 2025 to 30.8% on Mar 30, 2026. See the KMI implied volatility history for a longer view.

The Kinder Morgan put/call volume ratio was 0.79 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.57. The KMI open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Kinder Morgan options about one week from expiration was $33.29, 5.6% above the $31.52 close. The KMI max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 30.9%, options price a move of about ±$1.35 (±4.3%) over the next week, a range of roughly $30.17 to $32.87 from the Nov 4, 2026 close. The KMI expected move chart shows it for every expiration date.