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Contract OI history

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Dec 18, 2026 EXPIRATION

WMT $87.50 Put

WMT261218P00087500

Latest saved OI1,227Oct 23, 2026
Last change+40vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WMT $87.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,2276130 2026-10-09: 1,022 OI2026-10-12: 1,022 OI2026-10-14: 1,022 OI2026-10-15: 1,165 OI2026-10-16: 1,145 OI2026-10-21: 1,187 OI2026-10-23: 1,227 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

WMT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,227+40
Oct 21, 20261,187+42
Oct 16, 20261,145-20
Oct 15, 20261,165+143
Oct 14, 20261,0220
Oct 12, 20261,0220
Oct 09, 20261,022No prior observation