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Contract OI history

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Oct 30, 2026 EXPIRATION

WMB $78.00 Call

WMB261030C00078000

Latest saved OI322Oct 23, 2026
Last change+17vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WMB $78.00 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. 3221610 2026-10-02: 299 OI2026-10-05: 299 OI2026-10-06: 299 OI2026-10-07: 301 OI2026-10-08: 301 OI2026-10-09: 301 OI2026-10-12: 302 OI2026-10-14: 318 OI2026-10-15: 318 OI2026-10-16: 316 OI2026-10-21: 305 OI2026-10-23: 322 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, 2026Viewing322+17
Oct 21, 2026305-11
Oct 16, 2026316-2
Oct 15, 20263180
Oct 14, 2026318+16
Oct 12, 2026302+1
Oct 09, 20263010
Oct 08, 20263010
Oct 07, 2026301+2
Oct 06, 20262990
Oct 05, 20262990
Oct 02, 2026299No prior observation