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Contract OI history

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Jan 15, 2027 EXPIRATION

PFE $27.00 Put

PFE270115P00027000

Latest saved OI35,544Oct 23, 2026
Last change+1,756vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $27.00 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. 35,54417,7720 2026-10-02: 33,506 OI2026-10-05: 33,509 OI2026-10-06: 33,530 OI2026-10-07: 33,585 OI2026-10-08: 33,585 OI2026-10-09: 33,725 OI2026-10-13: 33,805 OI2026-10-14: 33,805 OI2026-10-15: 33,788 OI2026-10-16: 33,754 OI2026-10-21: 33,788 OI2026-10-23: 35,544 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, 2026Viewing35,544+1,756
Oct 21, 202633,788+34
Oct 16, 202633,754-34
Oct 15, 202633,788-17
Oct 14, 202633,8050
Oct 13, 202633,805+80
Oct 09, 202633,725+140
Oct 08, 202633,5850
Oct 07, 202633,585+55
Oct 06, 202633,530+21
Oct 05, 202633,509+3
Oct 02, 202633,506No prior observation