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Contract OI history

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Dec 15, 2028 EXPIRATION

PFE $25.00 Put

PFE281215P00025000

Latest saved OI1,078Oct 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. 1,0785390 2026-10-02: 712 OI2026-10-05: 712 OI2026-10-06: 714 OI2026-10-07: 714 OI2026-10-08: 714 OI2026-10-09: 828 OI2026-10-13: 1,015 OI2026-10-14: 1,015 OI2026-10-15: 1,015 OI2026-10-16: 1,016 OI2026-10-21: 1,078 OI2026-10-23: 1,078 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, 2026Viewing1,0780
Oct 21, 20261,078+62
Oct 16, 20261,016+1
Oct 15, 20261,0150
Oct 14, 20261,0150
Oct 13, 20261,015+187
Oct 09, 2026828+114
Oct 08, 20267140
Oct 07, 20267140
Oct 06, 2026714+2
Oct 05, 20267120
Oct 02, 2026712No prior observation