OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

B $36.50 Call

B261023C00036500

Latest saved OI0Oct 23, 2026
Last change-1vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
B $36.50 call open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 10 2026-10-21: 1 OI2026-10-23: 0 OI Oct 21, 2026Oct 23, 2026

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

B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing0-1
Oct 21, 20261No prior observation