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Contract OI history

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Mar 19, 2027 EXPIRATION

PFE $23.00 Put

PFE270319P00023000

Latest saved OI10,241Oct 23, 2026
Last change-334vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $23.00 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. 10,5755,2870 2026-10-02: 10,282 OI2026-10-05: 10,321 OI2026-10-06: 10,376 OI2026-10-07: 10,376 OI2026-10-08: 10,376 OI2026-10-09: 10,376 OI2026-10-13: 10,466 OI2026-10-14: 10,466 OI2026-10-15: 10,568 OI2026-10-16: 10,568 OI2026-10-21: 10,575 OI2026-10-23: 10,241 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, 2026Viewing10,241-334
Oct 21, 202610,575+7
Oct 16, 202610,5680
Oct 15, 202610,568+102
Oct 14, 202610,4660
Oct 13, 202610,466+90
Oct 09, 202610,3760
Oct 08, 202610,3760
Oct 07, 202610,3760
Oct 06, 202610,376+55
Oct 05, 202610,321+39
Oct 02, 202610,282No prior observation