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Contract OI history

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Jun 17, 2027 EXPIRATION

WM $240.00 Call

WM270617C00240000

Latest saved OI425Oct 23, 2026
Last change-1vs 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. 4262130 2026-10-02: 410 OI2026-10-05: 412 OI2026-10-06: 414 OI2026-10-07: 415 OI2026-10-08: 415 OI2026-10-09: 417 OI2026-10-14: 421 OI2026-10-15: 421 OI2026-10-16: 425 OI2026-10-21: 426 OI2026-10-23: 425 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, 2026Viewing425-1
Oct 21, 2026426+1
Oct 16, 2026425+4
Oct 15, 20264210
Oct 14, 2026421+4
Oct 09, 2026417+2
Oct 08, 20264150
Oct 07, 2026415+1
Oct 06, 2026414+2
Oct 05, 2026412+2
Oct 02, 2026410No prior observation