5.66K calls and 3.57K puts traded on Nov 4, 2026, 9.23K contracts in total. Open interest was 421.44K contracts. Over the past 30 days, volume averaged 12.95K contracts per day. The HAL option volume chart shows volume by strike and expiration date.

Halliburton IV rank is 32, so its 30-day implied volatility of 37.0% is in the lower part of its one-year range. Over the past year it ranged from 29.6% on Dec 3, 2025 to 52.8% on Jul 28, 2026. See the HAL implied volatility history for a longer view.

The Halliburton put/call volume ratio was 0.63 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.69. The HAL open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for Halliburton options about one week from expiration was $35.21, 6.7% above the $33.00 close. The HAL max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 42.4%, options price a move of about ±$1.94 (±5.9%) over the next week, a range of roughly $31.06 to $34.94 from the Nov 4, 2026 close. The HAL expected move chart shows it for every expiration date.