OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

B $15.00 Call

B261218C00015000

Latest saved OI142Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $15.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 143710 2026-10-02: 143 OI2026-10-05: 143 OI2026-10-06: 143 OI2026-10-07: 142 OI2026-10-08: 142 OI2026-10-09: 142 OI2026-10-13: 142 OI2026-10-14: 142 OI2026-10-15: 142 OI2026-10-16: 142 OI2026-10-21: 142 OI2026-10-23: 142 OI Oct 02, 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, 2026Viewing1420
Oct 21, 20261420
Oct 16, 20261420
Oct 15, 20261420
Oct 14, 20261420
Oct 13, 20261420
Oct 09, 20261420
Oct 08, 20261420
Oct 07, 2026142-1
Oct 06, 20261430
Oct 05, 20261430
Oct 02, 2026143No prior observation