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Contract OI history

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Dec 18, 2026 EXPIRATION

WMB $75.00 Put

WMB261218P00075000

Latest saved OI182Oct 23, 2026
Last change+4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WMB $75.00 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. 182910 2026-10-02: 169 OI2026-10-05: 169 OI2026-10-06: 169 OI2026-10-07: 169 OI2026-10-08: 169 OI2026-10-09: 171 OI2026-10-12: 171 OI2026-10-14: 176 OI2026-10-15: 178 OI2026-10-16: 178 OI2026-10-21: 178 OI2026-10-23: 182 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, 2026182+4
Oct 21, 2026Viewing1780
Oct 16, 20261780
Oct 15, 2026178+2
Oct 14, 2026176+5
Oct 12, 20261710
Oct 09, 2026171+2
Oct 08, 20261690
Oct 07, 20261690
Oct 06, 20261690
Oct 05, 20261690
Oct 02, 2026169No prior observation