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Contract OI history

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Oct 30, 2026 EXPIRATION

PFE $29.00 Put

PFE261030P00029000

Latest saved OI1,495Oct 23, 2026
Last change+90vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $29.00 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. 1,4957470 2026-10-02: 432 OI2026-10-05: 413 OI2026-10-06: 418 OI2026-10-07: 422 OI2026-10-08: 422 OI2026-10-09: 422 OI2026-10-13: 426 OI2026-10-14: 426 OI2026-10-15: 456 OI2026-10-16: 523 OI2026-10-21: 1,405 OI2026-10-23: 1,495 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

PFE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,495+90
Oct 21, 20261,405+882
Oct 16, 2026523+67
Oct 15, 2026456+30
Oct 14, 20264260
Oct 13, 2026426+4
Oct 09, 20264220
Oct 08, 20264220
Oct 07, 2026422+4
Oct 06, 2026418+5
Oct 05, 2026413-19
Oct 02, 2026432No prior observation