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Contract OI history

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Dec 17, 2027 EXPIRATION

PFE $27.00 Put

PFE271217P00027000

Latest saved OI5,249Oct 23, 2026
Last change+936vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $27.00 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. 5,2492,6240 2026-10-02: 4,308 OI2026-10-05: 4,308 OI2026-10-06: 4,337 OI2026-10-07: 4,350 OI2026-10-08: 4,350 OI2026-10-09: 4,267 OI2026-10-13: 4,267 OI2026-10-14: 4,267 OI2026-10-15: 4,267 OI2026-10-16: 4,267 OI2026-10-21: 4,313 OI2026-10-23: 5,249 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, 2026Viewing5,249+936
Oct 21, 20264,313+46
Oct 16, 20264,2670
Oct 15, 20264,2670
Oct 14, 20264,2670
Oct 13, 20264,2670
Oct 09, 20264,267-83
Oct 08, 20264,3500
Oct 07, 20264,350+13
Oct 06, 20264,337+29
Oct 05, 20264,3080
Oct 02, 20264,308No prior observation