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Contract OI history

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Oct 23, 2026 EXPIRATION

PFE $28.00 Call

PFE261023C00028000

Latest saved OI1,226Oct 23, 2026
Last change-150vs 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. 1,4387190 2026-10-02: 742 OI2026-10-05: 783 OI2026-10-06: 896 OI2026-10-07: 1,129 OI2026-10-08: 1,129 OI2026-10-09: 1,405 OI2026-10-13: 1,433 OI2026-10-14: 1,433 OI2026-10-15: 1,410 OI2026-10-16: 1,438 OI2026-10-21: 1,376 OI2026-10-23: 1,226 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, 2026Viewing1,226-150
Oct 21, 20261,376-62
Oct 16, 20261,438+28
Oct 15, 20261,410-23
Oct 14, 20261,4330
Oct 13, 20261,433+28
Oct 09, 20261,405+276
Oct 08, 20261,1290
Oct 07, 20261,129+233
Oct 06, 2026896+113
Oct 05, 2026783+41
Oct 02, 2026742No prior observation