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Contract OI history

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Dec 15, 2028 EXPIRATION

PFE $18.00 Call

PFE281215C00018000

Latest saved OI365Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $18.00 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. 3691840 2026-10-02: 368 OI2026-10-05: 369 OI2026-10-06: 369 OI2026-10-07: 369 OI2026-10-08: 369 OI2026-10-09: 369 OI2026-10-13: 369 OI2026-10-14: 369 OI2026-10-15: 363 OI2026-10-16: 363 OI2026-10-21: 363 OI2026-10-23: 365 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, 2026Viewing365+2
Oct 21, 20263630
Oct 16, 20263630
Oct 15, 2026363-6
Oct 14, 20263690
Oct 13, 20263690
Oct 09, 20263690
Oct 08, 20263690
Oct 07, 20263690
Oct 06, 20263690
Oct 05, 2026369+1
Oct 02, 2026368No prior observation