OITracker Cboe delayed data

Contract OI history

Back to WMB

Mar 19, 2027 EXPIRATION

WMB $75.00 Put

WMB270319P00075000

Latest saved OI266Oct 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 $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. 3121560 2026-10-02: 312 OI2026-10-05: 312 OI2026-10-06: 311 OI2026-10-07: 280 OI2026-10-08: 269 OI2026-10-09: 269 OI2026-10-12: 269 OI2026-10-14: 266 OI2026-10-15: 266 OI2026-10-16: 266 OI2026-10-21: 266 OI2026-10-23: 266 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, 20262660
Oct 21, 2026Viewing2660
Oct 16, 20262660
Oct 15, 20262660
Oct 14, 2026266-3
Oct 12, 20262690
Oct 09, 20262690
Oct 08, 2026269-11
Oct 07, 2026280-31
Oct 06, 2026311-1
Oct 05, 20263120
Oct 02, 2026312No prior observation