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Contract OI history

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Jan 21, 2028 EXPIRATION

PFE $40.00 Call

PFE280121C00040000

Latest saved OI16,132Oct 23, 2026
Last change-12vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $40.00 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. 16,1998,0990 2026-10-02: 15,522 OI2026-10-05: 15,764 OI2026-10-06: 15,762 OI2026-10-07: 15,818 OI2026-10-08: 15,818 OI2026-10-09: 15,818 OI2026-10-13: 15,849 OI2026-10-14: 15,849 OI2026-10-15: 15,906 OI2026-10-16: 16,199 OI2026-10-21: 16,144 OI2026-10-23: 16,132 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, 2026Viewing16,132-12
Oct 21, 202616,144-55
Oct 16, 202616,199+293
Oct 15, 202615,906+57
Oct 14, 202615,8490
Oct 13, 202615,849+31
Oct 09, 202615,8180
Oct 08, 202615,8180
Oct 07, 202615,818+56
Oct 06, 202615,762-2
Oct 05, 202615,764+242
Oct 02, 202615,522No prior observation