OITracker Cboe delayed data

Contract OI history

Back to WMB

Jun 17, 2027 EXPIRATION

WMB $45.00 Put

WMB270617P00045000

Latest saved OI188Oct 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 $45.00 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. 188940 2026-10-02: 170 OI2026-10-05: 183 OI2026-10-06: 183 OI2026-10-07: 183 OI2026-10-08: 188 OI2026-10-09: 188 OI2026-10-12: 188 OI2026-10-14: 188 OI2026-10-15: 188 OI2026-10-16: 188 OI2026-10-21: 188 OI2026-10-23: 188 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, 2026Viewing1880
Oct 21, 20261880
Oct 16, 20261880
Oct 15, 20261880
Oct 14, 20261880
Oct 12, 20261880
Oct 09, 20261880
Oct 08, 2026188+5
Oct 07, 20261830
Oct 06, 20261830
Oct 05, 2026183+13
Oct 02, 2026170No prior observation