OITracker Cboe delayed data

Contract OI history

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Nov 06, 2026 EXPIRATION

PFE $24.50 Put

PFE261106P00024500

Latest saved OI278Oct 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 $24.50 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. 2781390 2026-10-02: 2 OI2026-10-05: 2 OI2026-10-06: 8 OI2026-10-07: 8 OI2026-10-08: 8 OI2026-10-09: 28 OI2026-10-13: 32 OI2026-10-14: 32 OI2026-10-15: 32 OI2026-10-16: 32 OI2026-10-21: 278 OI2026-10-23: 278 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, 2026Viewing2780
Oct 21, 2026278+246
Oct 16, 2026320
Oct 15, 2026320
Oct 14, 2026320
Oct 13, 202632+4
Oct 09, 202628+20
Oct 08, 202680
Oct 07, 202680
Oct 06, 20268+6
Oct 05, 202620
Oct 02, 20262No prior observation