OITracker Cboe delayed data

Contract OI history

Back to WMB

Oct 23, 2026 EXPIRATION

WMB $71.00 Call

WMB261023C00071000

Latest saved OI591Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WMB $71.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5912950 2026-10-02: 42 OI2026-10-05: 578 OI2026-10-06: 580 OI2026-10-07: 580 OI2026-10-08: 579 OI2026-10-09: 578 OI2026-10-12: 578 OI2026-10-14: 578 OI2026-10-15: 578 OI2026-10-16: 578 OI2026-10-21: 591 OI2026-10-23: 591 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

WMB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20265910
Oct 21, 2026Viewing591+13
Oct 16, 20265780
Oct 15, 20265780
Oct 14, 20265780
Oct 12, 20265780
Oct 09, 2026578-1
Oct 08, 2026579-1
Oct 07, 20265800
Oct 06, 2026580+2
Oct 05, 2026578+536
Oct 02, 202642No prior observation