OITracker Cboe delayed data

Contract OI history

Back to USB

Dec 18, 2026 EXPIRATION

USB $57.50 Put

USB261218P00057500

Latest saved OI802Oct 23, 2026
Last change+47vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
USB $57.50 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. 8024010 2026-10-02: 732 OI2026-10-05: 732 OI2026-10-06: 740 OI2026-10-07: 680 OI2026-10-08: 681 OI2026-10-09: 681 OI2026-10-14: 686 OI2026-10-15: 738 OI2026-10-16: 723 OI2026-10-21: 755 OI2026-10-23: 802 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, 2026Viewing802+47
Oct 21, 2026755+32
Oct 16, 2026723-15
Oct 15, 2026738+52
Oct 14, 2026686+5
Oct 09, 20266810
Oct 08, 2026681+1
Oct 07, 2026680-60
Oct 06, 2026740+8
Oct 05, 20267320
Oct 02, 2026732No prior observation