OITracker Cboe delayed data

Contract OI history

Back to USB

Nov 20, 2026 EXPIRATION

USB $50.00 Put

USB261120P00050000

Latest saved OI357Oct 23, 2026
Last change-83vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
USB $50.00 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. 4412200 2026-10-02: 58 OI2026-10-05: 58 OI2026-10-06: 69 OI2026-10-07: 94 OI2026-10-08: 94 OI2026-10-09: 393 OI2026-10-14: 394 OI2026-10-15: 441 OI2026-10-16: 441 OI2026-10-21: 440 OI2026-10-23: 357 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, 2026357-83
Oct 21, 2026Viewing440-1
Oct 16, 20264410
Oct 15, 2026441+47
Oct 14, 2026394+1
Oct 09, 2026393+299
Oct 08, 2026940
Oct 07, 202694+25
Oct 06, 202669+11
Oct 05, 2026580
Oct 02, 202658No prior observation