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Contract OI history

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Jan 21, 2028 EXPIRATION

PFE $27.00 Put

PFE280121P00027000

Latest saved OI15,311Oct 23, 2026
Last change+331vs 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. 15,3117,6550 2026-10-02: 14,279 OI2026-10-05: 14,446 OI2026-10-06: 14,484 OI2026-10-07: 14,556 OI2026-10-08: 14,556 OI2026-10-09: 14,716 OI2026-10-13: 14,715 OI2026-10-14: 14,715 OI2026-10-15: 14,715 OI2026-10-16: 14,947 OI2026-10-21: 14,980 OI2026-10-23: 15,311 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, 2026Viewing15,311+331
Oct 21, 202614,980+33
Oct 16, 202614,947+232
Oct 15, 202614,7150
Oct 14, 202614,7150
Oct 13, 202614,715-1
Oct 09, 202614,716+160
Oct 08, 202614,5560
Oct 07, 202614,556+72
Oct 06, 202614,484+38
Oct 05, 202614,446+167
Oct 02, 202614,279No prior observation