OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

WM $250.00 Call

WM261120C00250000

Latest saved OI625Oct 23, 2026
Last change+295vs 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. 6253120 2026-10-02: 11 OI2026-10-05: 11 OI2026-10-06: 14 OI2026-10-07: 14 OI2026-10-08: 14 OI2026-10-09: 14 OI2026-10-14: 16 OI2026-10-15: 18 OI2026-10-16: 53 OI2026-10-21: 330 OI2026-10-23: 625 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, 2026625+295
Oct 21, 2026Viewing330+277
Oct 16, 202653+35
Oct 15, 202618+2
Oct 14, 202616+2
Oct 09, 2026140
Oct 08, 2026140
Oct 07, 2026140
Oct 06, 202614+3
Oct 05, 2026110
Oct 02, 202611No prior observation