4.83K calls and 2.32K puts traded on Nov 4, 2026, 7.15K contracts in total. Open interest was 173.38K contracts. Over the past 30 days, volume averaged 13.3K contracts per day. The FTNT option volume chart shows volume by strike and expiration date.

Fortinet IV rank is 44, so its 30-day implied volatility of 48.2% is near the middle of its one-year range. Over the past year it ranged from 25.2% on Dec 23, 2025 to 77.4% on Jul 17, 2026. See the FTNT implied volatility history for a longer view.

The Fortinet put/call volume ratio was 0.48 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.99. The FTNT open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Fortinet options about one week from expiration was $136.29, 5.3% above the $129.40 close. The FTNT max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 52.5%, options price a move of about ±$9.41 (±7.3%) over the next week, a range of roughly $119.99 to $138.81 from the Nov 4, 2026 close. The FTNT expected move chart shows it for every expiration date.