OITracker Cboe delayed data

Contract OI history

Back to USB

Dec 18, 2026 EXPIRATION

USB $47.50 Put

USB261218P00047500

Latest saved OI337Oct 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 $47.50 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. 3371680 2026-10-02: 250 OI2026-10-05: 250 OI2026-10-06: 250 OI2026-10-07: 250 OI2026-10-08: 250 OI2026-10-09: 250 OI2026-10-14: 225 OI2026-10-15: 225 OI2026-10-16: 225 OI2026-10-21: 337 OI2026-10-23: 337 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, 20263370
Oct 21, 2026Viewing337+112
Oct 16, 20262250
Oct 15, 20262250
Oct 14, 2026225-25
Oct 09, 20262500
Oct 08, 20262500
Oct 07, 20262500
Oct 06, 20262500
Oct 05, 20262500
Oct 02, 2026250No prior observation