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Contract OI history

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Mar 19, 2027 EXPIRATION

PFE $35.00 Put

PFE270319P00035000

Latest saved OI363Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $35.00 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. 3671830 2026-10-02: 134 OI2026-10-05: 134 OI2026-10-06: 134 OI2026-10-07: 134 OI2026-10-08: 134 OI2026-10-09: 200 OI2026-10-13: 217 OI2026-10-14: 217 OI2026-10-15: 217 OI2026-10-16: 367 OI2026-10-21: 363 OI2026-10-23: 363 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, 2026Viewing3630
Oct 21, 2026363-4
Oct 16, 2026367+150
Oct 15, 20262170
Oct 14, 20262170
Oct 13, 2026217+17
Oct 09, 2026200+66
Oct 08, 20261340
Oct 07, 20261340
Oct 06, 20261340
Oct 05, 20261340
Oct 02, 2026134No prior observation