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Contract OI history

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Oct 30, 2026 EXPIRATION

PFE $31.50 Call

PFE261030C00031500

Latest saved OI416Oct 23, 2026
Last change+71vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $31.50 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. 4162080 2026-10-02: 47 OI2026-10-05: 47 OI2026-10-06: 57 OI2026-10-07: 57 OI2026-10-08: 57 OI2026-10-09: 57 OI2026-10-13: 60 OI2026-10-14: 60 OI2026-10-15: 76 OI2026-10-16: 94 OI2026-10-21: 345 OI2026-10-23: 416 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, 2026Viewing416+71
Oct 21, 2026345+251
Oct 16, 202694+18
Oct 15, 202676+16
Oct 14, 2026600
Oct 13, 202660+3
Oct 09, 2026570
Oct 08, 2026570
Oct 07, 2026570
Oct 06, 202657+10
Oct 05, 2026470
Oct 02, 202647No prior observation