OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

U $40.00 Call

U270115C00040000

Latest saved OI18,813Oct 23, 2026
Last change+45vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
U $40.00 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. 18,8139,4060 2026-10-02: 18,795 OI2026-10-05: 18,780 OI2026-10-06: 18,771 OI2026-10-07: 18,772 OI2026-10-08: 18,772 OI2026-10-09: 18,758 OI2026-10-14: 18,755 OI2026-10-15: 18,751 OI2026-10-16: 18,751 OI2026-10-21: 18,768 OI2026-10-23: 18,813 OI Oct 02, 2026Oct 23, 2026

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

U contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202618,813+45
Oct 21, 2026Viewing18,768+17
Oct 16, 202618,7510
Oct 15, 202618,751-4
Oct 14, 202618,755-3
Oct 09, 202618,758-14
Oct 08, 202618,7720
Oct 07, 202618,772+1
Oct 06, 202618,771-9
Oct 05, 202618,780-15
Oct 02, 202618,795No prior observation