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Dec 18, 2026 EXPIRATION

PFE $23.00 Put

PFE261218P00023000

Latest saved OI18,653Oct 23, 2026
Last change-24vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $23.00 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. 18,6839,3410 2026-10-02: 18,387 OI2026-10-05: 18,383 OI2026-10-06: 18,413 OI2026-10-07: 18,326 OI2026-10-08: 18,326 OI2026-10-09: 18,620 OI2026-10-13: 18,683 OI2026-10-14: 18,683 OI2026-10-15: 18,683 OI2026-10-16: 18,680 OI2026-10-21: 18,677 OI2026-10-23: 18,653 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, 2026Viewing18,653-24
Oct 21, 202618,677-3
Oct 16, 202618,680-3
Oct 15, 202618,6830
Oct 14, 202618,6830
Oct 13, 202618,683+63
Oct 09, 202618,620+294
Oct 08, 202618,3260
Oct 07, 202618,326-87
Oct 06, 202618,413+30
Oct 05, 202618,383-4
Oct 02, 202618,387No prior observation