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Contract OI history

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Dec 18, 2026 EXPIRATION

BAX $22.50 Put

BAX261218P00022500

Latest saved OI807Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAX $22.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8074030 2026-10-02: 764 OI2026-10-05: 764 OI2026-10-06: 767 OI2026-10-07: 767 OI2026-10-08: 767 OI2026-10-09: 767 OI2026-10-13: 764 OI2026-10-14: 764 OI2026-10-15: 764 OI2026-10-16: 774 OI2026-10-21: 802 OI2026-10-23: 807 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, 2026Viewing807+5
Oct 21, 2026802+28
Oct 16, 2026774+10
Oct 15, 20267640
Oct 14, 20267640
Oct 13, 2026764-3
Oct 09, 20267670
Oct 08, 20267670
Oct 07, 20267670
Oct 06, 2026767+3
Oct 05, 20267640
Oct 02, 2026764No prior observation