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Contract OI history

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Jan 15, 2027 EXPIRATION

WMB $55.00 Call

WMB270115C00055000

Latest saved OI679Oct 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 $55.00 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. 7093540 2026-10-02: 709 OI2026-10-05: 679 OI2026-10-06: 679 OI2026-10-07: 679 OI2026-10-08: 679 OI2026-10-09: 679 OI2026-10-12: 679 OI2026-10-14: 679 OI2026-10-15: 679 OI2026-10-16: 679 OI2026-10-21: 679 OI2026-10-23: 679 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, 20266790
Oct 21, 2026Viewing6790
Oct 16, 20266790
Oct 15, 20266790
Oct 14, 20266790
Oct 12, 20266790
Oct 09, 20266790
Oct 08, 20266790
Oct 07, 20266790
Oct 06, 20266790
Oct 05, 2026679-30
Oct 02, 2026709No prior observation