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Contract OI history

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Nov 20, 2026 EXPIRATION

WM $220.00 Call

WM261120C00220000

Latest saved OI504Oct 23, 2026
Last change-26vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $220.00 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. 5592790 2026-10-02: 211 OI2026-10-05: 250 OI2026-10-06: 326 OI2026-10-07: 364 OI2026-10-08: 364 OI2026-10-09: 401 OI2026-10-14: 509 OI2026-10-15: 557 OI2026-10-16: 559 OI2026-10-21: 530 OI2026-10-23: 504 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, 2026Viewing504-26
Oct 21, 2026530-29
Oct 16, 2026559+2
Oct 15, 2026557+48
Oct 14, 2026509+108
Oct 09, 2026401+37
Oct 08, 20263640
Oct 07, 2026364+38
Oct 06, 2026326+76
Oct 05, 2026250+39
Oct 02, 2026211No prior observation