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Contract OI history

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Oct 23, 2026 EXPIRATION

PFE $25.00 Put

PFE261023P00025000

Latest saved OI338Oct 23, 2026
Last change0vs 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. 3381690 2026-10-02: 205 OI2026-10-05: 205 OI2026-10-06: 328 OI2026-10-07: 328 OI2026-10-08: 328 OI2026-10-09: 328 OI2026-10-13: 328 OI2026-10-14: 328 OI2026-10-15: 328 OI2026-10-16: 338 OI2026-10-21: 338 OI2026-10-23: 338 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, 2026Viewing3380
Oct 21, 20263380
Oct 16, 2026338+10
Oct 15, 20263280
Oct 14, 20263280
Oct 13, 20263280
Oct 09, 20263280
Oct 08, 20263280
Oct 07, 20263280
Oct 06, 2026328+123
Oct 05, 20262050
Oct 02, 2026205No prior observation