OITracker Cboe delayed data

Contract OI history

Back to USB

Dec 18, 2026 EXPIRATION

USB $42.50 Put

USB261218P00042500

Latest saved OI939Oct 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 $42.50 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. 9394690 2026-10-02: 937 OI2026-10-05: 937 OI2026-10-06: 937 OI2026-10-07: 937 OI2026-10-08: 937 OI2026-10-09: 937 OI2026-10-14: 936 OI2026-10-15: 939 OI2026-10-16: 939 OI2026-10-21: 939 OI2026-10-23: 939 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, 20269390
Oct 21, 2026Viewing9390
Oct 16, 20269390
Oct 15, 2026939+3
Oct 14, 2026936-1
Oct 09, 20269370
Oct 08, 20269370
Oct 07, 20269370
Oct 06, 20269370
Oct 05, 20269370
Oct 02, 2026937No prior observation