OITracker Cboe delayed data

Contract OI history

Back to PFE

Nov 20, 2026 EXPIRATION

PFE $25.00 Put

PFE261120P00025000

Latest saved OI43,571Oct 23, 2026
Last change-82vs 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. 59,39629,6980 2026-10-02: 24,510 OI2026-10-05: 58,930 OI2026-10-06: 59,347 OI2026-10-07: 59,338 OI2026-10-08: 59,338 OI2026-10-09: 59,396 OI2026-10-13: 59,349 OI2026-10-14: 59,349 OI2026-10-15: 59,200 OI2026-10-16: 59,101 OI2026-10-21: 43,653 OI2026-10-23: 43,571 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, 2026Viewing43,571-82
Oct 21, 202643,653-15,448
Oct 16, 202659,101-99
Oct 15, 202659,200-149
Oct 14, 202659,3490
Oct 13, 202659,349-47
Oct 09, 202659,396+58
Oct 08, 202659,3380
Oct 07, 202659,338-9
Oct 06, 202659,347+417
Oct 05, 202658,930+34,420
Oct 02, 202624,510No prior observation