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Contract OI history

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Mar 19, 2027 EXPIRATION

PFE $40.00 Call

PFE270319C00040000

Latest saved OI7,309Oct 23, 2026
Last change+35vs 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. 7,3093,6540 2026-10-02: 6,709 OI2026-10-05: 6,719 OI2026-10-06: 6,767 OI2026-10-07: 6,817 OI2026-10-08: 6,817 OI2026-10-09: 6,827 OI2026-10-13: 6,828 OI2026-10-14: 6,828 OI2026-10-15: 6,933 OI2026-10-16: 6,951 OI2026-10-21: 7,274 OI2026-10-23: 7,309 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, 2026Viewing7,309+35
Oct 21, 20267,274+323
Oct 16, 20266,951+18
Oct 15, 20266,933+105
Oct 14, 20266,8280
Oct 13, 20266,828+1
Oct 09, 20266,827+10
Oct 08, 20266,8170
Oct 07, 20266,817+50
Oct 06, 20266,767+48
Oct 05, 20266,719+10
Oct 02, 20266,709No prior observation