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Contract OI history

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Feb 19, 2027 EXPIRATION

BAX $17.50 Put

BAX270219P00017500

Latest saved OI340Oct 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. 3401700 2026-10-02: 292 OI2026-10-05: 292 OI2026-10-06: 292 OI2026-10-07: 292 OI2026-10-08: 292 OI2026-10-09: 295 OI2026-10-13: 335 OI2026-10-14: 336 OI2026-10-15: 337 OI2026-10-16: 337 OI2026-10-21: 340 OI2026-10-23: 340 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, 2026Viewing3400
Oct 21, 2026340+3
Oct 16, 20263370
Oct 15, 2026337+1
Oct 14, 2026336+1
Oct 13, 2026335+40
Oct 09, 2026295+3
Oct 08, 20262920
Oct 07, 20262920
Oct 06, 20262920
Oct 05, 20262920
Oct 02, 2026292No prior observation