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Contract OI history

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Jan 21, 2028 EXPIRATION

PFE $25.00 Put

PFE280121P00025000

Latest saved OI31,889Oct 23, 2026
Last change-9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $25.00 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. 32,10316,0510 2026-10-02: 31,883 OI2026-10-05: 31,937 OI2026-10-06: 32,011 OI2026-10-07: 32,011 OI2026-10-08: 32,011 OI2026-10-09: 32,067 OI2026-10-13: 32,103 OI2026-10-14: 32,103 OI2026-10-15: 32,102 OI2026-10-16: 32,071 OI2026-10-21: 31,898 OI2026-10-23: 31,889 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, 2026Viewing31,889-9
Oct 21, 202631,898-173
Oct 16, 202632,071-31
Oct 15, 202632,102-1
Oct 14, 202632,1030
Oct 13, 202632,103+36
Oct 09, 202632,067+56
Oct 08, 202632,0110
Oct 07, 202632,0110
Oct 06, 202632,011+74
Oct 05, 202631,937+54
Oct 02, 202631,883No prior observation