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Contract OI history

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Dec 18, 2026 EXPIRATION

BAX $17.50 Put

BAX261218P00017500

Latest saved OI728Oct 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 $17.50 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. 7283640 2026-10-02: 672 OI2026-10-05: 672 OI2026-10-06: 672 OI2026-10-07: 683 OI2026-10-08: 683 OI2026-10-09: 726 OI2026-10-13: 728 OI2026-10-14: 728 OI2026-10-15: 728 OI2026-10-16: 728 OI2026-10-21: 728 OI2026-10-23: 728 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, 2026Viewing7280
Oct 21, 20267280
Oct 16, 20267280
Oct 15, 20267280
Oct 14, 20267280
Oct 13, 2026728+2
Oct 09, 2026726+43
Oct 08, 20266830
Oct 07, 2026683+11
Oct 06, 20266720
Oct 05, 20266720
Oct 02, 2026672No prior observation