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Contract OI history

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Nov 20, 2026 EXPIRATION

PFE $29.00 Put

PFE261120P00029000

Latest saved OI1,300Oct 23, 2026
Last change+163vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $29.00 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. 1,3006500 2026-10-02: 494 OI2026-10-05: 492 OI2026-10-06: 492 OI2026-10-07: 492 OI2026-10-08: 492 OI2026-10-09: 522 OI2026-10-13: 556 OI2026-10-14: 556 OI2026-10-15: 874 OI2026-10-16: 891 OI2026-10-21: 1,137 OI2026-10-23: 1,300 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, 2026Viewing1,300+163
Oct 21, 20261,137+246
Oct 16, 2026891+17
Oct 15, 2026874+318
Oct 14, 20265560
Oct 13, 2026556+34
Oct 09, 2026522+30
Oct 08, 20264920
Oct 07, 20264920
Oct 06, 20264920
Oct 05, 2026492-2
Oct 02, 2026494No prior observation