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Contract OI history

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Dec 18, 2026 EXPIRATION

PFE $13.00 Put

PFE261218P00013000

Latest saved OI3,788Oct 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 $13.00 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. 3,7881,8940 2026-10-02: 3,788 OI2026-10-05: 3,788 OI2026-10-06: 3,788 OI2026-10-07: 3,788 OI2026-10-08: 3,788 OI2026-10-09: 3,788 OI2026-10-13: 3,788 OI2026-10-14: 3,788 OI2026-10-15: 3,788 OI2026-10-16: 3,788 OI2026-10-21: 3,788 OI2026-10-23: 3,788 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, 2026Viewing3,7880
Oct 21, 20263,7880
Oct 16, 20263,7880
Oct 15, 20263,7880
Oct 14, 20263,7880
Oct 13, 20263,7880
Oct 09, 20263,7880
Oct 08, 20263,7880
Oct 07, 20263,7880
Oct 06, 20263,7880
Oct 05, 20263,7880
Oct 02, 20263,788No prior observation