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Contract OI history

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Jan 21, 2028 EXPIRATION

PFE $20.00 Call

PFE280121C00020000

Latest saved OI18,156Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $20.00 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. 18,7559,3770 2026-10-02: 18,755 OI2026-10-05: 18,731 OI2026-10-06: 18,720 OI2026-10-07: 18,719 OI2026-10-08: 18,719 OI2026-10-09: 18,548 OI2026-10-13: 18,541 OI2026-10-14: 18,541 OI2026-10-15: 18,297 OI2026-10-16: 18,262 OI2026-10-21: 18,151 OI2026-10-23: 18,156 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, 2026Viewing18,156+5
Oct 21, 202618,151-111
Oct 16, 202618,262-35
Oct 15, 202618,297-244
Oct 14, 202618,5410
Oct 13, 202618,541-7
Oct 09, 202618,548-171
Oct 08, 202618,7190
Oct 07, 202618,719-1
Oct 06, 202618,720-11
Oct 05, 202618,731-24
Oct 02, 202618,755No prior observation