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Contract OI history

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Oct 30, 2026 EXPIRATION

WMB $65.00 Put

WMB261030P00065000

Latest saved OI28,458Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WMB $65.00 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. 28,46114,2300 2026-10-02: 28,391 OI2026-10-05: 28,391 OI2026-10-06: 28,390 OI2026-10-07: 28,370 OI2026-10-08: 28,370 OI2026-10-09: 28,370 OI2026-10-12: 28,371 OI2026-10-14: 28,370 OI2026-10-15: 28,370 OI2026-10-16: 28,461 OI2026-10-21: 28,461 OI2026-10-23: 28,458 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, 202628,458-3
Oct 21, 2026Viewing28,4610
Oct 16, 202628,461+91
Oct 15, 202628,3700
Oct 14, 202628,370-1
Oct 12, 202628,371+1
Oct 09, 202628,3700
Oct 08, 202628,3700
Oct 07, 202628,370-20
Oct 06, 202628,390-1
Oct 05, 202628,3910
Oct 02, 202628,391No prior observation