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Contract OI history

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Jan 19, 2029 EXPIRATION

PFE $40.00 Call

PFE290119C00040000

Latest saved OI595Oct 23, 2026
Last change+295vs 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. 5952970 2026-10-02: 159 OI2026-10-05: 162 OI2026-10-06: 164 OI2026-10-07: 172 OI2026-10-08: 172 OI2026-10-09: 180 OI2026-10-13: 182 OI2026-10-14: 182 OI2026-10-15: 263 OI2026-10-16: 275 OI2026-10-21: 300 OI2026-10-23: 595 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, 2026Viewing595+295
Oct 21, 2026300+25
Oct 16, 2026275+12
Oct 15, 2026263+81
Oct 14, 20261820
Oct 13, 2026182+2
Oct 09, 2026180+8
Oct 08, 20261720
Oct 07, 2026172+8
Oct 06, 2026164+2
Oct 05, 2026162+3
Oct 02, 2026159No prior observation