OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

USB $55.00 Put

USB270319P00055000

Latest saved OI1,025Oct 23, 2026
Last change+5vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
USB $55.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0255120 2026-10-02: 871 OI2026-10-05: 872 OI2026-10-06: 872 OI2026-10-07: 872 OI2026-10-08: 872 OI2026-10-09: 871 OI2026-10-14: 869 OI2026-10-15: 868 OI2026-10-16: 1,010 OI2026-10-21: 1,020 OI2026-10-23: 1,025 OI Oct 02, 2026Oct 23, 2026

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

USB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,025+5
Oct 21, 2026Viewing1,020+10
Oct 16, 20261,010+142
Oct 15, 2026868-1
Oct 14, 2026869-2
Oct 09, 2026871-1
Oct 08, 20268720
Oct 07, 20268720
Oct 06, 20268720
Oct 05, 2026872+1
Oct 02, 2026871No prior observation