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Contract OI history

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Mar 19, 2027 EXPIRATION

PFE $26.00 Put

PFE270319P00026000

Latest saved OI5,613Oct 23, 2026
Last change+96vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $26.00 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. 5,6132,8060 2026-10-02: 4,997 OI2026-10-05: 4,999 OI2026-10-06: 5,049 OI2026-10-07: 5,075 OI2026-10-08: 5,075 OI2026-10-09: 5,089 OI2026-10-13: 5,168 OI2026-10-14: 5,168 OI2026-10-15: 5,170 OI2026-10-16: 5,142 OI2026-10-21: 5,517 OI2026-10-23: 5,613 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, 2026Viewing5,613+96
Oct 21, 20265,517+375
Oct 16, 20265,142-28
Oct 15, 20265,170+2
Oct 14, 20265,1680
Oct 13, 20265,168+79
Oct 09, 20265,089+14
Oct 08, 20265,0750
Oct 07, 20265,075+26
Oct 06, 20265,049+50
Oct 05, 20264,999+2
Oct 02, 20264,997No prior observation