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Contract OI history

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Jan 15, 2027 EXPIRATION

WM $240.00 Call

WM270115C00240000

Latest saved OI790Oct 23, 2026
Last change-6vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $240.00 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. 7963980 2026-10-02: 369 OI2026-10-05: 361 OI2026-10-06: 373 OI2026-10-07: 374 OI2026-10-08: 374 OI2026-10-09: 374 OI2026-10-14: 377 OI2026-10-15: 380 OI2026-10-16: 382 OI2026-10-21: 796 OI2026-10-23: 790 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, 2026790-6
Oct 21, 2026Viewing796+414
Oct 16, 2026382+2
Oct 15, 2026380+3
Oct 14, 2026377+3
Oct 09, 20263740
Oct 08, 20263740
Oct 07, 2026374+1
Oct 06, 2026373+12
Oct 05, 2026361-8
Oct 02, 2026369No prior observation