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Contract OI history

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Oct 23, 2026 EXPIRATION

PFE $27.00 Put

PFE261023P00027000

Latest saved OI2,527Oct 23, 2026
Last change-15vs 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. 2,5421,2710 2026-10-02: 2,125 OI2026-10-05: 2,179 OI2026-10-06: 2,277 OI2026-10-07: 2,360 OI2026-10-08: 2,360 OI2026-10-09: 2,482 OI2026-10-13: 2,536 OI2026-10-14: 2,536 OI2026-10-15: 2,537 OI2026-10-16: 2,542 OI2026-10-21: 2,542 OI2026-10-23: 2,527 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, 2026Viewing2,527-15
Oct 21, 20262,5420
Oct 16, 20262,542+5
Oct 15, 20262,537+1
Oct 14, 20262,5360
Oct 13, 20262,536+54
Oct 09, 20262,482+122
Oct 08, 20262,3600
Oct 07, 20262,360+83
Oct 06, 20262,277+98
Oct 05, 20262,179+54
Oct 02, 20262,125No prior observation