OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

B $44.50 Call

B261023C00044500

Latest saved OI35Oct 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 $44.50 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. 39190 2026-10-02: 0 OI2026-10-05: 5 OI2026-10-06: 5 OI2026-10-07: 19 OI2026-10-08: 30 OI2026-10-09: 30 OI2026-10-13: 34 OI2026-10-14: 39 OI2026-10-15: 39 OI2026-10-16: 39 OI2026-10-21: 35 OI2026-10-23: 35 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, 2026Viewing350
Oct 21, 202635-4
Oct 16, 2026390
Oct 15, 2026390
Oct 14, 202639+5
Oct 13, 202634+4
Oct 09, 2026300
Oct 08, 202630+11
Oct 07, 202619+14
Oct 06, 202650
Oct 05, 20265+5
Oct 02, 20260No prior observation