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Contract OI history

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Mar 19, 2027 EXPIRATION

PFE $28.00 Call

PFE270319C00028000

Latest saved OI3,633Oct 23, 2026
Last change+55vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $28.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3,9241,9620 2026-10-02: 3,924 OI2026-10-05: 3,919 OI2026-10-06: 3,593 OI2026-10-07: 3,260 OI2026-10-08: 3,260 OI2026-10-09: 3,285 OI2026-10-13: 3,411 OI2026-10-14: 3,411 OI2026-10-15: 3,411 OI2026-10-16: 3,443 OI2026-10-21: 3,578 OI2026-10-23: 3,633 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, 2026Viewing3,633+55
Oct 21, 20263,578+135
Oct 16, 20263,443+32
Oct 15, 20263,4110
Oct 14, 20263,4110
Oct 13, 20263,411+126
Oct 09, 20263,285+25
Oct 08, 20263,2600
Oct 07, 20263,260-333
Oct 06, 20263,593-326
Oct 05, 20263,919-5
Oct 02, 20263,924No prior observation