OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

WM $220.00 Call

WM270115C00220000

Latest saved OI359Oct 23, 2026
Last change-15vs 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. 4582290 2026-10-02: 457 OI2026-10-05: 458 OI2026-10-06: 430 OI2026-10-07: 433 OI2026-10-08: 433 OI2026-10-09: 451 OI2026-10-14: 400 OI2026-10-15: 386 OI2026-10-16: 382 OI2026-10-21: 374 OI2026-10-23: 359 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, 2026359-15
Oct 21, 2026Viewing374-8
Oct 16, 2026382-4
Oct 15, 2026386-14
Oct 14, 2026400-51
Oct 09, 2026451+18
Oct 08, 20264330
Oct 07, 2026433+3
Oct 06, 2026430-28
Oct 05, 2026458+1
Oct 02, 2026457No prior observation