OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BAX $40.00 Call

BAX270115C00040000

Latest saved OI1,755Oct 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 $40.00 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. 1,7558770 2026-10-02: 1,755 OI2026-10-05: 1,755 OI2026-10-06: 1,755 OI2026-10-07: 1,755 OI2026-10-08: 1,755 OI2026-10-09: 1,755 OI2026-10-13: 1,755 OI2026-10-14: 1,755 OI2026-10-15: 1,755 OI2026-10-16: 1,755 OI2026-10-21: 1,755 OI2026-10-23: 1,755 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, 2026Viewing1,7550
Oct 21, 20261,7550
Oct 16, 20261,7550
Oct 15, 20261,7550
Oct 14, 20261,7550
Oct 13, 20261,7550
Oct 09, 20261,7550
Oct 08, 20261,7550
Oct 07, 20261,7550
Oct 06, 20261,7550
Oct 05, 20261,7550
Oct 02, 20261,755No prior observation