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Contract OI history

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Mar 19, 2027 EXPIRATION

PFE $22.00 Put

PFE270319P00022000

Latest saved OI2,536Oct 23, 2026
Last change+1vs 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. 2,5391,2690 2026-10-02: 2,180 OI2026-10-05: 2,311 OI2026-10-06: 2,366 OI2026-10-07: 2,461 OI2026-10-08: 2,461 OI2026-10-09: 2,471 OI2026-10-13: 2,471 OI2026-10-14: 2,471 OI2026-10-15: 2,539 OI2026-10-16: 2,535 OI2026-10-21: 2,535 OI2026-10-23: 2,536 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, 2026Viewing2,536+1
Oct 21, 20262,5350
Oct 16, 20262,535-4
Oct 15, 20262,539+68
Oct 14, 20262,4710
Oct 13, 20262,4710
Oct 09, 20262,471+10
Oct 08, 20262,4610
Oct 07, 20262,461+95
Oct 06, 20262,366+55
Oct 05, 20262,311+131
Oct 02, 20262,180No prior observation