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Contract OI history

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Jun 17, 2027 EXPIRATION

WMB $50.00 Put

WMB270617P00050000

Latest saved OI143Oct 23, 2026
Last change+10vs 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. 143710 2026-10-02: 133 OI2026-10-05: 133 OI2026-10-06: 133 OI2026-10-07: 133 OI2026-10-08: 133 OI2026-10-09: 133 OI2026-10-12: 133 OI2026-10-14: 133 OI2026-10-15: 133 OI2026-10-16: 133 OI2026-10-21: 133 OI2026-10-23: 143 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, 2026Viewing143+10
Oct 21, 20261330
Oct 16, 20261330
Oct 15, 20261330
Oct 14, 20261330
Oct 12, 20261330
Oct 09, 20261330
Oct 08, 20261330
Oct 07, 20261330
Oct 06, 20261330
Oct 05, 20261330
Oct 02, 2026133No prior observation