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Contract OI history

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Oct 23, 2026 EXPIRATION

PFE $26.50 Call

PFE261023C00026500

Latest saved OI135Oct 23, 2026
Last change+7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $26.50 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. 2181090 2026-10-02: 127 OI2026-10-05: 159 OI2026-10-06: 164 OI2026-10-07: 164 OI2026-10-08: 164 OI2026-10-09: 182 OI2026-10-13: 179 OI2026-10-14: 179 OI2026-10-15: 194 OI2026-10-16: 218 OI2026-10-21: 128 OI2026-10-23: 135 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, 2026Viewing135+7
Oct 21, 2026128-90
Oct 16, 2026218+24
Oct 15, 2026194+15
Oct 14, 20261790
Oct 13, 2026179-3
Oct 09, 2026182+18
Oct 08, 20261640
Oct 07, 20261640
Oct 06, 2026164+5
Oct 05, 2026159+32
Oct 02, 2026127No prior observation