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Contract OI history

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Nov 20, 2026 EXPIRATION

WMB $71.00 Put

WMB261120P00071000

Latest saved OI120Oct 23, 2026
Last change+32vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
WMB $71.00 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 120600 2026-10-21: 88 OI2026-10-23: 120 OI Oct 21, 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, 2026Viewing120+32
Oct 21, 202688No prior observation