OITracker Cboe delayed data

Contract OI history

Back to PFE

Oct 30, 2026 EXPIRATION

PFE $29.50 Put

PFE261030P00029500

Latest saved OI1,046Oct 23, 2026
Last change+209vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $29.50 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. 1,0465230 2026-10-02: 25 OI2026-10-05: 25 OI2026-10-06: 25 OI2026-10-07: 41 OI2026-10-08: 41 OI2026-10-09: 41 OI2026-10-13: 61 OI2026-10-14: 61 OI2026-10-15: 185 OI2026-10-16: 264 OI2026-10-21: 837 OI2026-10-23: 1,046 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, 2026Viewing1,046+209
Oct 21, 2026837+573
Oct 16, 2026264+79
Oct 15, 2026185+124
Oct 14, 2026610
Oct 13, 202661+20
Oct 09, 2026410
Oct 08, 2026410
Oct 07, 202641+16
Oct 06, 2026250
Oct 05, 2026250
Oct 02, 202625No prior observation