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Contract OI history

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Mar 19, 2027 EXPIRATION

WM $250.00 Call

WM270319C00250000

Latest saved OI524Oct 23, 2026
Last change+247vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WM $250.00 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. 5242620 2026-10-02: 265 OI2026-10-05: 265 OI2026-10-06: 266 OI2026-10-07: 272 OI2026-10-08: 272 OI2026-10-09: 270 OI2026-10-14: 271 OI2026-10-15: 270 OI2026-10-16: 274 OI2026-10-21: 277 OI2026-10-23: 524 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, 2026524+247
Oct 21, 2026Viewing277+3
Oct 16, 2026274+4
Oct 15, 2026270-1
Oct 14, 2026271+1
Oct 09, 2026270-2
Oct 08, 20262720
Oct 07, 2026272+6
Oct 06, 2026266+1
Oct 05, 20262650
Oct 02, 2026265No prior observation