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Contract OI history

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Jan 21, 2028 EXPIRATION

BAX $20.00 Put

BAX280121P00020000

Latest saved OI1,077Oct 23, 2026
Last change+45vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAX $20.00 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. 1,0775380 2026-10-02: 848 OI2026-10-05: 848 OI2026-10-06: 848 OI2026-10-07: 848 OI2026-10-08: 848 OI2026-10-09: 848 OI2026-10-13: 1,032 OI2026-10-14: 1,032 OI2026-10-15: 1,032 OI2026-10-16: 1,032 OI2026-10-21: 1,032 OI2026-10-23: 1,077 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, 2026Viewing1,077+45
Oct 21, 20261,0320
Oct 16, 20261,0320
Oct 15, 20261,0320
Oct 14, 20261,0320
Oct 13, 20261,032+184
Oct 09, 20268480
Oct 08, 20268480
Oct 07, 20268480
Oct 06, 20268480
Oct 05, 20268480
Oct 02, 2026848No prior observation