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Contract OI history

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Dec 18, 2026 EXPIRATION

WM $230.00 Call

WM261218C00230000

Latest saved OI1,248Oct 23, 2026
Last change-3vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $230.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,2516250 2026-10-02: 968 OI2026-10-05: 971 OI2026-10-06: 993 OI2026-10-07: 993 OI2026-10-08: 993 OI2026-10-09: 1,193 OI2026-10-14: 1,200 OI2026-10-15: 1,202 OI2026-10-16: 1,225 OI2026-10-21: 1,251 OI2026-10-23: 1,248 OI Oct 02, 2026Oct 23, 2026

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

WM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,248-3
Oct 21, 2026Viewing1,251+26
Oct 16, 20261,225+23
Oct 15, 20261,202+2
Oct 14, 20261,200+7
Oct 09, 20261,193+200
Oct 08, 20269930
Oct 07, 20269930
Oct 06, 2026993+22
Oct 05, 2026971+3
Oct 02, 2026968No prior observation