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Contract OI history

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Nov 20, 2026 EXPIRATION

WMB $50.00 Put

WMB261120P00050000

Latest saved OI7Oct 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 $50.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 730 2026-10-02: 6 OI2026-10-05: 6 OI2026-10-06: 6 OI2026-10-07: 6 OI2026-10-08: 7 OI2026-10-09: 7 OI2026-10-12: 7 OI2026-10-14: 7 OI2026-10-15: 7 OI2026-10-16: 7 OI2026-10-21: 7 OI2026-10-23: 7 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, 202670
Oct 21, 2026Viewing70
Oct 16, 202670
Oct 15, 202670
Oct 14, 202670
Oct 12, 202670
Oct 09, 202670
Oct 08, 20267+1
Oct 07, 202660
Oct 06, 202660
Oct 05, 202660
Oct 02, 20266No prior observation