OITracker Cboe delayed data

Contract OI history

Back to USB

Jan 21, 2028 EXPIRATION

USB $35.00 Put

USB280121P00035000

Latest saved OI774Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
USB $35.00 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. 7743870 2026-10-02: 774 OI2026-10-05: 774 OI2026-10-06: 774 OI2026-10-07: 774 OI2026-10-08: 774 OI2026-10-09: 774 OI2026-10-14: 774 OI2026-10-15: 774 OI2026-10-16: 774 OI2026-10-21: 774 OI2026-10-23: 774 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, 20267740
Oct 21, 2026Viewing7740
Oct 16, 20267740
Oct 15, 20267740
Oct 14, 20267740
Oct 09, 20267740
Oct 08, 20267740
Oct 07, 20267740
Oct 06, 20267740
Oct 05, 20267740
Oct 02, 2026774No prior observation