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Contract OI history

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Dec 15, 2028 EXPIRATION

PFE $27.00 Put

PFE281215P00027000

Latest saved OI3,531Oct 23, 2026
Last change+54vs 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. 3,5311,7650 2026-10-02: 3,150 OI2026-10-05: 3,150 OI2026-10-06: 3,150 OI2026-10-07: 3,226 OI2026-10-08: 3,226 OI2026-10-09: 3,327 OI2026-10-13: 3,457 OI2026-10-14: 3,457 OI2026-10-15: 3,457 OI2026-10-16: 3,458 OI2026-10-21: 3,477 OI2026-10-23: 3,531 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, 2026Viewing3,531+54
Oct 21, 20263,477+19
Oct 16, 20263,458+1
Oct 15, 20263,4570
Oct 14, 20263,4570
Oct 13, 20263,457+130
Oct 09, 20263,327+101
Oct 08, 20263,2260
Oct 07, 20263,226+76
Oct 06, 20263,1500
Oct 05, 20263,1500
Oct 02, 20263,150No prior observation