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Contract OI history

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Nov 06, 2026 EXPIRATION

WMB $78.00 Call

WMB261106C00078000

Latest saved OI271Oct 23, 2026
Last change+6vs 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. 2711350 2026-10-02: 251 OI2026-10-05: 254 OI2026-10-06: 260 OI2026-10-07: 260 OI2026-10-08: 260 OI2026-10-09: 260 OI2026-10-12: 260 OI2026-10-14: 264 OI2026-10-15: 264 OI2026-10-16: 265 OI2026-10-21: 265 OI2026-10-23: 271 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, 2026271+6
Oct 21, 2026Viewing2650
Oct 16, 2026265+1
Oct 15, 20262640
Oct 14, 2026264+4
Oct 12, 20262600
Oct 09, 20262600
Oct 08, 20262600
Oct 07, 20262600
Oct 06, 2026260+6
Oct 05, 2026254+3
Oct 02, 2026251No prior observation