OITracker Cboe delayed data

Contract OI history

Back to WMB

Nov 20, 2026 EXPIRATION

WMB $70.00 Put

WMB261120P00070000

Latest saved OI7,894Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WMB $70.00 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. 7,8943,9470 2026-10-02: 3,026 OI2026-10-05: 3,458 OI2026-10-06: 3,471 OI2026-10-07: 4,737 OI2026-10-08: 7,047 OI2026-10-09: 7,068 OI2026-10-12: 7,112 OI2026-10-14: 7,146 OI2026-10-15: 7,190 OI2026-10-16: 7,248 OI2026-10-21: 7,894 OI2026-10-23: 7,894 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, 2026Viewing7,8940
Oct 21, 20267,894+646
Oct 16, 20267,248+58
Oct 15, 20267,190+44
Oct 14, 20267,146+34
Oct 12, 20267,112+44
Oct 09, 20267,068+21
Oct 08, 20267,047+2,310
Oct 07, 20264,737+1,266
Oct 06, 20263,471+13
Oct 05, 20263,458+432
Oct 02, 20263,026No prior observation