OITracker Cboe delayed data

Contract OI history

Back to USB

Dec 18, 2026 EXPIRATION

USB $52.50 Put

USB261218P00052500

Latest saved OI1,137Oct 23, 2026
Last change+5vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
USB $52.50 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. 1,1375680 2026-10-02: 229 OI2026-10-05: 222 OI2026-10-06: 296 OI2026-10-07: 300 OI2026-10-08: 302 OI2026-10-09: 336 OI2026-10-14: 408 OI2026-10-15: 389 OI2026-10-16: 1,124 OI2026-10-21: 1,132 OI2026-10-23: 1,137 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, 20261,137+5
Oct 21, 2026Viewing1,132+8
Oct 16, 20261,124+735
Oct 15, 2026389-19
Oct 14, 2026408+72
Oct 09, 2026336+34
Oct 08, 2026302+2
Oct 07, 2026300+4
Oct 06, 2026296+74
Oct 05, 2026222-7
Oct 02, 2026229No prior observation