OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BAX $22.50 Call

BAX270115C00022500

Latest saved OI1,372Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAX $22.50 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. 1,3726860 2026-10-02: 1,341 OI2026-10-05: 1,341 OI2026-10-06: 1,341 OI2026-10-07: 1,341 OI2026-10-08: 1,341 OI2026-10-09: 1,352 OI2026-10-13: 1,372 OI2026-10-14: 1,372 OI2026-10-15: 1,372 OI2026-10-16: 1,372 OI2026-10-21: 1,372 OI2026-10-23: 1,372 OI Oct 02, 2026Oct 23, 2026

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

BAX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,3720
Oct 21, 20261,3720
Oct 16, 20261,3720
Oct 15, 20261,3720
Oct 14, 20261,3720
Oct 13, 20261,372+20
Oct 09, 20261,352+11
Oct 08, 20261,3410
Oct 07, 20261,3410
Oct 06, 20261,3410
Oct 05, 20261,3410
Oct 02, 20261,341No prior observation