2.31K calls and 5.02K puts traded on Nov 4, 2026, 7.33K contracts in total. Open interest was 82.48K contracts. Over the past 30 days, volume averaged 3.46K contracts per day. The CF option volume chart shows volume by strike and expiration date.

CF Industries IV rank is 47, so its 30-day implied volatility of 45.7% is near the middle of its one-year range. Over the past year it ranged from 24.3% on Dec 4, 2025 to 69.8% on Mar 12, 2026. See the CF implied volatility history for a longer view.

The CF Industries put/call volume ratio was 2.17 on Nov 4, 2026, so puts outnumber calls. The put/call open interest ratio was 0.78. The CF open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for CF Industries options about one week from expiration was $115.86, 3.8% above the $111.65 close. The CF max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 70.5%, options price a move of about ±$10.90 (±9.8%) over the next week, a range of roughly $100.75 to $122.55 from the Nov 4, 2026 close. The CF expected move chart shows it for every expiration date.