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Contract OI history

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Dec 17, 2027 EXPIRATION

WMT $55.00 Put

WMT271217P00055000

Latest saved OI338Oct 23, 2026
Last change-50vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WMT $55.00 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. 3881940 2026-10-09: 208 OI2026-10-12: 208 OI2026-10-14: 184 OI2026-10-15: 384 OI2026-10-16: 384 OI2026-10-21: 388 OI2026-10-23: 338 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, 2026Viewing338-50
Oct 21, 2026388+4
Oct 16, 20263840
Oct 15, 2026384+200
Oct 14, 2026184-24
Oct 12, 20262080
Oct 09, 2026208No prior observation