OITracker Cboe delayed data

Contract OI history

Back to PFE

Dec 17, 2027 EXPIRATION

PFE $20.00 Call

PFE271217C00020000

Latest saved OI2,466Oct 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 $20.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,4881,2440 2026-10-02: 2,458 OI2026-10-05: 2,488 OI2026-10-06: 2,488 OI2026-10-07: 2,487 OI2026-10-08: 2,487 OI2026-10-09: 2,477 OI2026-10-13: 2,476 OI2026-10-14: 2,476 OI2026-10-15: 2,473 OI2026-10-16: 2,467 OI2026-10-21: 2,466 OI2026-10-23: 2,466 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, 2026Viewing2,4660
Oct 21, 20262,466-1
Oct 16, 20262,467-6
Oct 15, 20262,473-3
Oct 14, 20262,4760
Oct 13, 20262,476-1
Oct 09, 20262,477-10
Oct 08, 20262,4870
Oct 07, 20262,487-1
Oct 06, 20262,4880
Oct 05, 20262,488+30
Oct 02, 20262,458No prior observation