OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

PFE $19.00 Put

PFE270115P00019000

Latest saved OI285Oct 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 $19.00 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. 3141570 2026-10-02: 314 OI2026-10-05: 314 OI2026-10-06: 314 OI2026-10-07: 314 OI2026-10-08: 314 OI2026-10-09: 285 OI2026-10-13: 285 OI2026-10-14: 285 OI2026-10-15: 285 OI2026-10-16: 285 OI2026-10-21: 285 OI2026-10-23: 285 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, 2026Viewing2850
Oct 21, 20262850
Oct 16, 20262850
Oct 15, 20262850
Oct 14, 20262850
Oct 13, 20262850
Oct 09, 2026285-29
Oct 08, 20263140
Oct 07, 20263140
Oct 06, 20263140
Oct 05, 20263140
Oct 02, 2026314No prior observation