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Contract OI history

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Jun 17, 2027 EXPIRATION

PFE $40.00 Put

PFE270617P00040000

Latest saved OI206Oct 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 $40.00 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. 2061030 2026-10-02: 206 OI2026-10-05: 206 OI2026-10-06: 206 OI2026-10-07: 206 OI2026-10-08: 206 OI2026-10-09: 206 OI2026-10-13: 206 OI2026-10-14: 206 OI2026-10-15: 206 OI2026-10-16: 206 OI2026-10-21: 206 OI2026-10-23: 206 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, 2026Viewing2060
Oct 21, 20262060
Oct 16, 20262060
Oct 15, 20262060
Oct 14, 20262060
Oct 13, 20262060
Oct 09, 20262060
Oct 08, 20262060
Oct 07, 20262060
Oct 06, 20262060
Oct 05, 20262060
Oct 02, 2026206No prior observation