OITracker Cboe delayed data

Contract OI history

Back to PFE

Oct 23, 2026 EXPIRATION

PFE $27.00 Call

PFE261023C00027000

Latest saved OI2,448Oct 23, 2026
Last change-47vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $27.00 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. 2,4951,2470 2026-10-02: 1,439 OI2026-10-05: 2,319 OI2026-10-06: 2,344 OI2026-10-07: 2,343 OI2026-10-08: 2,343 OI2026-10-09: 2,351 OI2026-10-13: 2,353 OI2026-10-14: 2,353 OI2026-10-15: 2,351 OI2026-10-16: 2,357 OI2026-10-21: 2,495 OI2026-10-23: 2,448 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, 2026Viewing2,448-47
Oct 21, 20262,495+138
Oct 16, 20262,357+6
Oct 15, 20262,351-2
Oct 14, 20262,3530
Oct 13, 20262,353+2
Oct 09, 20262,351+8
Oct 08, 20262,3430
Oct 07, 20262,343-1
Oct 06, 20262,344+25
Oct 05, 20262,319+880
Oct 02, 20261,439No prior observation