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Contract OI history

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Dec 15, 2028 EXPIRATION

PFE $37.00 Put

PFE281215P00037000

Latest saved OI2,427Oct 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 $37.00 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. 2,4271,2130 2026-10-02: 2,227 OI2026-10-05: 2,427 OI2026-10-06: 2,427 OI2026-10-07: 2,427 OI2026-10-08: 2,427 OI2026-10-09: 2,427 OI2026-10-13: 2,427 OI2026-10-14: 2,427 OI2026-10-15: 2,427 OI2026-10-16: 2,427 OI2026-10-21: 2,427 OI2026-10-23: 2,427 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, 2026Viewing2,4270
Oct 21, 20262,4270
Oct 16, 20262,4270
Oct 15, 20262,4270
Oct 14, 20262,4270
Oct 13, 20262,4270
Oct 09, 20262,4270
Oct 08, 20262,4270
Oct 07, 20262,4270
Oct 06, 20262,4270
Oct 05, 20262,427+200
Oct 02, 20262,227No prior observation