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Contract OI history

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Oct 23, 2026 EXPIRATION

PFE $30.50 Put

PFE261023P00030500

Latest saved OI13,486Oct 23, 2026
Last change+126vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $30.50 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. 13,4866,7430 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 15 OI2026-10-13: 19 OI2026-10-14: 19 OI2026-10-15: 19 OI2026-10-16: 19 OI2026-10-21: 13,360 OI2026-10-23: 13,486 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, 2026Viewing13,486+126
Oct 21, 202613,360+13,341
Oct 16, 2026190
Oct 15, 2026190
Oct 14, 2026190
Oct 13, 202619+4
Oct 09, 202615+15
Oct 08, 202600
Oct 07, 202600
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation