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Contract OI history

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Jan 21, 2028 EXPIRATION

BAX $25.00 Put

BAX280121P00025000

Latest saved OI384Oct 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 $25.00 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. 3841920 2026-10-02: 374 OI2026-10-05: 374 OI2026-10-06: 374 OI2026-10-07: 374 OI2026-10-08: 374 OI2026-10-09: 374 OI2026-10-13: 374 OI2026-10-14: 384 OI2026-10-15: 384 OI2026-10-16: 384 OI2026-10-21: 384 OI2026-10-23: 384 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, 2026Viewing3840
Oct 21, 20263840
Oct 16, 20263840
Oct 15, 20263840
Oct 14, 2026384+10
Oct 13, 20263740
Oct 09, 20263740
Oct 08, 20263740
Oct 07, 20263740
Oct 06, 20263740
Oct 05, 20263740
Oct 02, 2026374No prior observation