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Contract OI history

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Jun 17, 2027 EXPIRATION

WMB $65.00 Put

WMB270617P00065000

Latest saved OI267Oct 23, 2026
Last change+13vs 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. 2671330 2026-10-02: 253 OI2026-10-05: 253 OI2026-10-06: 253 OI2026-10-07: 253 OI2026-10-08: 253 OI2026-10-09: 253 OI2026-10-12: 253 OI2026-10-14: 253 OI2026-10-15: 253 OI2026-10-16: 253 OI2026-10-21: 254 OI2026-10-23: 267 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, 2026267+13
Oct 21, 2026Viewing254+1
Oct 16, 20262530
Oct 15, 20262530
Oct 14, 20262530
Oct 12, 20262530
Oct 09, 20262530
Oct 08, 20262530
Oct 07, 20262530
Oct 06, 20262530
Oct 05, 20262530
Oct 02, 2026253No prior observation