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Contract OI history

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Oct 23, 2026 EXPIRATION

PFE $29.50 Put

PFE261023P00029500

Latest saved OI7,704Oct 23, 2026
Last change+1,235vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $29.50 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. 7,7043,8520 2026-10-02: 47 OI2026-10-05: 47 OI2026-10-06: 47 OI2026-10-07: 69 OI2026-10-08: 69 OI2026-10-09: 64 OI2026-10-13: 106 OI2026-10-14: 106 OI2026-10-15: 334 OI2026-10-16: 381 OI2026-10-21: 6,469 OI2026-10-23: 7,704 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, 2026Viewing7,704+1,235
Oct 21, 20266,469+6,088
Oct 16, 2026381+47
Oct 15, 2026334+228
Oct 14, 20261060
Oct 13, 2026106+42
Oct 09, 202664-5
Oct 08, 2026690
Oct 07, 202669+22
Oct 06, 2026470
Oct 05, 2026470
Oct 02, 202647No prior observation