OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

WES $42.00 Call

WES270115C00042000

Latest saved OI1,399Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WES $42.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,4017000 2026-10-02: 1,401 OI2026-10-05: 1,401 OI2026-10-06: 1,401 OI2026-10-07: 1,401 OI2026-10-08: 1,401 OI2026-10-09: 1,401 OI2026-10-13: 1,401 OI2026-10-14: 1,401 OI2026-10-16: 1,401 OI2026-10-20: 1,400 OI2026-10-23: 1,399 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

WES contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,399-1
Oct 20, 20261,400-1
Oct 16, 20261,4010
Oct 14, 20261,4010
Oct 13, 20261,4010
Oct 09, 20261,4010
Oct 08, 20261,4010
Oct 07, 20261,4010
Oct 06, 20261,4010
Oct 05, 20261,4010
Oct 02, 20261,401No prior observation