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Contract OI history

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Jan 15, 2027 EXPIRATION

PFE $26.00 Put

PFE270115P00026000

Latest saved OI5,535Oct 23, 2026
Last change+224vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $26.00 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. 5,5352,7670 2026-10-02: 4,968 OI2026-10-05: 5,395 OI2026-10-06: 5,370 OI2026-10-07: 5,384 OI2026-10-08: 5,384 OI2026-10-09: 5,379 OI2026-10-13: 5,371 OI2026-10-14: 5,371 OI2026-10-15: 5,268 OI2026-10-16: 5,270 OI2026-10-21: 5,311 OI2026-10-23: 5,535 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, 2026Viewing5,535+224
Oct 21, 20265,311+41
Oct 16, 20265,270+2
Oct 15, 20265,268-103
Oct 14, 20265,3710
Oct 13, 20265,371-8
Oct 09, 20265,379-5
Oct 08, 20265,3840
Oct 07, 20265,384+14
Oct 06, 20265,370-25
Oct 05, 20265,395+427
Oct 02, 20264,968No prior observation