OITracker Cboe delayed data

Contract OI history

Back to USB

Mar 19, 2027 EXPIRATION

USB $42.50 Put

USB270319P00042500

Latest saved OI1,751Oct 23, 2026
Last change+1vs 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. 1,7518750 2026-10-02: 433 OI2026-10-05: 433 OI2026-10-06: 433 OI2026-10-07: 433 OI2026-10-08: 1,750 OI2026-10-09: 1,750 OI2026-10-14: 1,750 OI2026-10-15: 1,750 OI2026-10-16: 1,750 OI2026-10-21: 1,750 OI2026-10-23: 1,751 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, 20261,751+1
Oct 21, 2026Viewing1,7500
Oct 16, 20261,7500
Oct 15, 20261,7500
Oct 14, 20261,7500
Oct 09, 20261,7500
Oct 08, 20261,750+1,317
Oct 07, 20264330
Oct 06, 20264330
Oct 05, 20264330
Oct 02, 2026433No prior observation