OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

PFE $22.00 Put

PFE261120P00022000

Latest saved OI2,587Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $22.00 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. 2,6901,3450 2026-10-02: 2,684 OI2026-10-05: 2,690 OI2026-10-06: 2,595 OI2026-10-07: 2,595 OI2026-10-08: 2,595 OI2026-10-09: 2,591 OI2026-10-13: 2,591 OI2026-10-14: 2,591 OI2026-10-15: 2,591 OI2026-10-16: 2,591 OI2026-10-21: 2,588 OI2026-10-23: 2,587 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, 2026Viewing2,587-1
Oct 21, 20262,588-3
Oct 16, 20262,5910
Oct 15, 20262,5910
Oct 14, 20262,5910
Oct 13, 20262,5910
Oct 09, 20262,591-4
Oct 08, 20262,5950
Oct 07, 20262,5950
Oct 06, 20262,595-95
Oct 05, 20262,690+6
Oct 02, 20262,684No prior observation