OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BL $32.50 Call

BL261120C00032500

Latest saved OI251Oct 23, 2026
Last change+101vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BL $32.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2511250 2026-10-09: 39 OI2026-10-13: 39 OI2026-10-14: 75 OI2026-10-16: 82 OI2026-10-20: 150 OI2026-10-23: 251 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing251+101
Oct 20, 2026150+68
Oct 16, 202682+7
Oct 14, 202675+36
Oct 13, 2026390
Oct 09, 202639No prior observation