OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

WM $250.00 Call

WM270115C00250000

Latest saved OI585Oct 23, 2026
Last change+109vs 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. 5852920 2026-10-02: 464 OI2026-10-05: 463 OI2026-10-06: 457 OI2026-10-07: 454 OI2026-10-08: 454 OI2026-10-09: 456 OI2026-10-14: 453 OI2026-10-15: 455 OI2026-10-16: 454 OI2026-10-21: 476 OI2026-10-23: 585 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, 2026Viewing585+109
Oct 21, 2026476+22
Oct 16, 2026454-1
Oct 15, 2026455+2
Oct 14, 2026453-3
Oct 09, 2026456+2
Oct 08, 20264540
Oct 07, 2026454-3
Oct 06, 2026457-6
Oct 05, 2026463-1
Oct 02, 2026464No prior observation