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Contract OI history

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Dec 18, 2026 EXPIRATION

WMB $65.00 Call

WMB261218C00065000

Latest saved OI329Oct 23, 2026
Last change+22vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WMB $65.00 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. 3291640 2026-10-02: 300 OI2026-10-05: 300 OI2026-10-06: 300 OI2026-10-07: 301 OI2026-10-08: 301 OI2026-10-09: 301 OI2026-10-12: 301 OI2026-10-14: 301 OI2026-10-15: 300 OI2026-10-16: 300 OI2026-10-21: 307 OI2026-10-23: 329 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, 2026Viewing329+22
Oct 21, 2026307+7
Oct 16, 20263000
Oct 15, 2026300-1
Oct 14, 20263010
Oct 12, 20263010
Oct 09, 20263010
Oct 08, 20263010
Oct 07, 2026301+1
Oct 06, 20263000
Oct 05, 20263000
Oct 02, 2026300No prior observation