940 calls and 369 puts traded on Nov 4, 2026, 1.31K contracts in total. Open interest was 53.95K contracts. Over the past 30 days, volume averaged 1.77K contracts per day. The BILL option volume chart shows volume by strike and expiration date.

BILL IV rank is 42, so its 30-day implied volatility of 61.7% is near the middle of its one-year range. Over the past year it ranged from 38.6% on Dec 29, 2025 to 93.4% on Feb 5, 2026. See the BILL implied volatility history for a longer view.

The BILL put/call volume ratio was 0.39 on Nov 4, 2026, so calls outnumber puts. The put/call open interest ratio was 0.56. The BILL open interest chart shows calls and puts at each strike.

As of the Nov 4, 2026 close, max pain for BILL options about one week from expiration was $48.71, 6.1% below the $51.87 close. The BILL max pain chart shows it for every expiration date.

Based on 7-day implied volatility of 93.3%, options price a move of about ±$6.70 (±12.9%) over the next week, a range of roughly $45.17 to $58.57 from the Nov 4, 2026 close. The BILL expected move chart shows it for every expiration date.