OITracker Cboe delayed data

Contract OI history

Back to WMB

Nov 20, 2026 EXPIRATION

WMB $65.00 Put

WMB261120P00065000

Latest saved OI5,541Oct 23, 2026
Last change+51vs 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. 5,5412,7700 2026-10-02: 3,832 OI2026-10-05: 3,836 OI2026-10-06: 3,850 OI2026-10-07: 3,863 OI2026-10-08: 3,891 OI2026-10-09: 3,894 OI2026-10-12: 3,893 OI2026-10-14: 3,907 OI2026-10-15: 3,908 OI2026-10-16: 5,023 OI2026-10-21: 5,490 OI2026-10-23: 5,541 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, 2026Viewing5,541+51
Oct 21, 20265,490+467
Oct 16, 20265,023+1,115
Oct 15, 20263,908+1
Oct 14, 20263,907+14
Oct 12, 20263,893-1
Oct 09, 20263,894+3
Oct 08, 20263,891+28
Oct 07, 20263,863+13
Oct 06, 20263,850+14
Oct 05, 20263,836+4
Oct 02, 20263,832No prior observation