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Contract OI history

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Feb 19, 2027 EXPIRATION

WMB $65.00 Put

WMB270219P00065000

Latest saved OI98Oct 23, 2026
Last change+1vs 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. 98490 2026-10-02: 18 OI2026-10-05: 18 OI2026-10-06: 18 OI2026-10-07: 18 OI2026-10-08: 50 OI2026-10-09: 51 OI2026-10-12: 51 OI2026-10-14: 51 OI2026-10-15: 51 OI2026-10-16: 93 OI2026-10-21: 97 OI2026-10-23: 98 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, 202698+1
Oct 21, 2026Viewing97+4
Oct 16, 202693+42
Oct 15, 2026510
Oct 14, 2026510
Oct 12, 2026510
Oct 09, 202651+1
Oct 08, 202650+32
Oct 07, 2026180
Oct 06, 2026180
Oct 05, 2026180
Oct 02, 202618No prior observation