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Contract OI history

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Dec 15, 2028 EXPIRATION

PFE $35.00 Put

PFE281215P00035000

Latest saved OI2,393Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $35.00 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. 2,3971,1980 2026-10-02: 2,395 OI2026-10-05: 2,395 OI2026-10-06: 2,395 OI2026-10-07: 2,395 OI2026-10-08: 2,395 OI2026-10-09: 2,397 OI2026-10-13: 2,397 OI2026-10-14: 2,397 OI2026-10-15: 2,395 OI2026-10-16: 2,395 OI2026-10-21: 2,394 OI2026-10-23: 2,393 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, 2026Viewing2,393-1
Oct 21, 20262,394-1
Oct 16, 20262,3950
Oct 15, 20262,395-2
Oct 14, 20262,3970
Oct 13, 20262,3970
Oct 09, 20262,397+2
Oct 08, 20262,3950
Oct 07, 20262,3950
Oct 06, 20262,3950
Oct 05, 20262,3950
Oct 02, 20262,395No prior observation