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Contract OI history

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Oct 23, 2026 EXPIRATION

PFE $31.50 Call

PFE261023C00031500

Latest saved OI2,769Oct 23, 2026
Last change+343vs 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. 2,7691,3840 2026-10-02: 88 OI2026-10-05: 88 OI2026-10-06: 88 OI2026-10-07: 91 OI2026-10-08: 91 OI2026-10-09: 91 OI2026-10-13: 91 OI2026-10-14: 91 OI2026-10-15: 92 OI2026-10-16: 137 OI2026-10-21: 2,426 OI2026-10-23: 2,769 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, 2026Viewing2,769+343
Oct 21, 20262,426+2,289
Oct 16, 2026137+45
Oct 15, 202692+1
Oct 14, 2026910
Oct 13, 2026910
Oct 09, 2026910
Oct 08, 2026910
Oct 07, 202691+3
Oct 06, 2026880
Oct 05, 2026880
Oct 02, 202688No prior observation