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Contract OI history

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Jan 21, 2028 EXPIRATION

WMT $55.00 Call

WMT280121C00055000

Latest saved OI814Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WMT $55.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 8184090 2026-10-09: 818 OI2026-10-12: 818 OI2026-10-14: 817 OI2026-10-15: 814 OI2026-10-16: 814 OI2026-10-21: 814 OI2026-10-23: 814 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, 2026Viewing8140
Oct 21, 20268140
Oct 16, 20268140
Oct 15, 2026814-3
Oct 14, 2026817-1
Oct 12, 20268180
Oct 09, 2026818No prior observation