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Contract OI history

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Nov 20, 2026 EXPIRATION

PFE $27.00 Put

PFE261120P00027000

Latest saved OI8,075Oct 23, 2026
Last change-34vs 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. 8,1304,0650 2026-10-02: 5,373 OI2026-10-05: 6,852 OI2026-10-06: 7,410 OI2026-10-07: 7,391 OI2026-10-08: 7,391 OI2026-10-09: 7,527 OI2026-10-13: 7,830 OI2026-10-14: 7,830 OI2026-10-15: 8,130 OI2026-10-16: 8,125 OI2026-10-21: 8,109 OI2026-10-23: 8,075 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, 2026Viewing8,075-34
Oct 21, 20268,109-16
Oct 16, 20268,125-5
Oct 15, 20268,130+300
Oct 14, 20267,8300
Oct 13, 20267,830+303
Oct 09, 20267,527+136
Oct 08, 20267,3910
Oct 07, 20267,391-19
Oct 06, 20267,410+558
Oct 05, 20266,852+1,479
Oct 02, 20265,373No prior observation