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Contract OI history

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Dec 18, 2026 EXPIRATION

PFE $25.00 Put

PFE261218P00025000

Latest saved OI42,631Oct 23, 2026
Last change-138vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $25.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 42,88521,4420 2026-10-02: 33,783 OI2026-10-05: 33,816 OI2026-10-06: 42,793 OI2026-10-07: 42,716 OI2026-10-08: 42,716 OI2026-10-09: 42,885 OI2026-10-13: 42,819 OI2026-10-14: 42,819 OI2026-10-15: 42,825 OI2026-10-16: 42,825 OI2026-10-21: 42,769 OI2026-10-23: 42,631 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, 2026Viewing42,631-138
Oct 21, 202642,769-56
Oct 16, 202642,8250
Oct 15, 202642,825+6
Oct 14, 202642,8190
Oct 13, 202642,819-66
Oct 09, 202642,885+169
Oct 08, 202642,7160
Oct 07, 202642,716-77
Oct 06, 202642,793+8,977
Oct 05, 202633,816+33
Oct 02, 202633,783No prior observation