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Contract OI history

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Jan 15, 2027 EXPIRATION

WM $230.00 Call

WM270115C00230000

Latest saved OI667Oct 23, 2026
Last change-73vs 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. 7913950 2026-10-02: 623 OI2026-10-05: 707 OI2026-10-06: 720 OI2026-10-07: 718 OI2026-10-08: 718 OI2026-10-09: 749 OI2026-10-14: 771 OI2026-10-15: 791 OI2026-10-16: 739 OI2026-10-21: 740 OI2026-10-23: 667 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, 2026667-73
Oct 21, 2026Viewing740+1
Oct 16, 2026739-52
Oct 15, 2026791+20
Oct 14, 2026771+22
Oct 09, 2026749+31
Oct 08, 20267180
Oct 07, 2026718-2
Oct 06, 2026720+13
Oct 05, 2026707+84
Oct 02, 2026623No prior observation