OITracker Cboe delayed data

Contract OI history

Back to WM

Dec 18, 2026 EXPIRATION

WM $250.00 Call

WM261218C00250000

Latest saved OI705Oct 23, 2026
Last change+178vs 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. 7053520 2026-10-02: 275 OI2026-10-05: 275 OI2026-10-06: 275 OI2026-10-07: 274 OI2026-10-08: 274 OI2026-10-09: 521 OI2026-10-14: 521 OI2026-10-15: 521 OI2026-10-16: 518 OI2026-10-21: 527 OI2026-10-23: 705 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, 2026705+178
Oct 21, 2026Viewing527+9
Oct 16, 2026518-3
Oct 15, 20265210
Oct 14, 20265210
Oct 09, 2026521+247
Oct 08, 20262740
Oct 07, 2026274-1
Oct 06, 20262750
Oct 05, 20262750
Oct 02, 2026275No prior observation