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Contract OI history

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Jan 21, 2028 EXPIRATION

PFE $22.00 Put

PFE280121P00022000

Latest saved OI18,035Oct 23, 2026
Last change-26vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $22.00 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. 18,2939,1460 2026-10-02: 18,253 OI2026-10-05: 18,280 OI2026-10-06: 18,291 OI2026-10-07: 18,293 OI2026-10-08: 18,293 OI2026-10-09: 18,279 OI2026-10-13: 18,219 OI2026-10-14: 18,219 OI2026-10-15: 18,215 OI2026-10-16: 18,211 OI2026-10-21: 18,061 OI2026-10-23: 18,035 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, 2026Viewing18,035-26
Oct 21, 202618,061-150
Oct 16, 202618,211-4
Oct 15, 202618,215-4
Oct 14, 202618,2190
Oct 13, 202618,219-60
Oct 09, 202618,279-14
Oct 08, 202618,2930
Oct 07, 202618,293+2
Oct 06, 202618,291+11
Oct 05, 202618,280+27
Oct 02, 202618,253No prior observation