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Contract OI history

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Dec 18, 2026 EXPIRATION

PFE $29.00 Put

PFE261218P00029000

Latest saved OI926Oct 23, 2026
Last change+17vs 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. 9264630 2026-10-02: 602 OI2026-10-05: 612 OI2026-10-06: 674 OI2026-10-07: 652 OI2026-10-08: 652 OI2026-10-09: 662 OI2026-10-13: 671 OI2026-10-14: 671 OI2026-10-15: 701 OI2026-10-16: 687 OI2026-10-21: 909 OI2026-10-23: 926 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, 2026Viewing926+17
Oct 21, 2026909+222
Oct 16, 2026687-14
Oct 15, 2026701+30
Oct 14, 20266710
Oct 13, 2026671+9
Oct 09, 2026662+10
Oct 08, 20266520
Oct 07, 2026652-22
Oct 06, 2026674+62
Oct 05, 2026612+10
Oct 02, 2026602No prior observation