OITracker Cboe delayed data

Contract OI history

Back to USB

Dec 18, 2026 EXPIRATION

USB $45.00 Put

USB261218P00045000

Latest saved OI1,721Oct 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 $45.00 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. 1,7218600 2026-10-02: 1,673 OI2026-10-05: 1,673 OI2026-10-06: 1,673 OI2026-10-07: 1,673 OI2026-10-08: 1,673 OI2026-10-09: 1,673 OI2026-10-14: 1,673 OI2026-10-15: 1,713 OI2026-10-16: 1,713 OI2026-10-21: 1,721 OI2026-10-23: 1,721 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, 20261,7210
Oct 21, 2026Viewing1,721+8
Oct 16, 20261,7130
Oct 15, 20261,713+40
Oct 14, 20261,6730
Oct 09, 20261,6730
Oct 08, 20261,6730
Oct 07, 20261,6730
Oct 06, 20261,6730
Oct 05, 20261,6730
Oct 02, 20261,673No prior observation