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Contract OI history

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Nov 06, 2026 EXPIRATION

PFE $28.00 Call

PFE261106C00028000

Latest saved OI1,500Oct 23, 2026
Last change-64vs 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. 1,5717850 2026-10-02: 142 OI2026-10-05: 175 OI2026-10-06: 341 OI2026-10-07: 382 OI2026-10-08: 382 OI2026-10-09: 1,417 OI2026-10-13: 1,531 OI2026-10-14: 1,531 OI2026-10-15: 1,558 OI2026-10-16: 1,571 OI2026-10-21: 1,564 OI2026-10-23: 1,500 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, 2026Viewing1,500-64
Oct 21, 20261,564-7
Oct 16, 20261,571+13
Oct 15, 20261,558+27
Oct 14, 20261,5310
Oct 13, 20261,531+114
Oct 09, 20261,417+1,035
Oct 08, 20263820
Oct 07, 2026382+41
Oct 06, 2026341+166
Oct 05, 2026175+33
Oct 02, 2026142No prior observation