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Contract OI history

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Sep 17, 2027 EXPIRATION

PFE $27.00 Put

PFE270917P00027000

Latest saved OI2,131Oct 23, 2026
Last change+104vs 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. 2,1311,0650 2026-10-02: 738 OI2026-10-05: 925 OI2026-10-06: 1,373 OI2026-10-07: 1,559 OI2026-10-08: 1,559 OI2026-10-09: 1,575 OI2026-10-13: 1,701 OI2026-10-14: 1,701 OI2026-10-15: 1,701 OI2026-10-16: 1,701 OI2026-10-21: 2,027 OI2026-10-23: 2,131 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, 2026Viewing2,131+104
Oct 21, 20262,027+326
Oct 16, 20261,7010
Oct 15, 20261,7010
Oct 14, 20261,7010
Oct 13, 20261,701+126
Oct 09, 20261,575+16
Oct 08, 20261,5590
Oct 07, 20261,559+186
Oct 06, 20261,373+448
Oct 05, 2026925+187
Oct 02, 2026738No prior observation