OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

USB $32.50 Put

USB261218P00032500

Latest saved OI995Oct 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 $32.50 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. 1,0425210 2026-10-02: 1,042 OI2026-10-05: 1,042 OI2026-10-06: 1,042 OI2026-10-07: 1,042 OI2026-10-08: 1,042 OI2026-10-09: 1,042 OI2026-10-14: 1,042 OI2026-10-15: 995 OI2026-10-16: 995 OI2026-10-21: 995 OI2026-10-23: 995 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, 20269950
Oct 21, 2026Viewing9950
Oct 16, 20269950
Oct 15, 2026995-47
Oct 14, 20261,0420
Oct 09, 20261,0420
Oct 08, 20261,0420
Oct 07, 20261,0420
Oct 06, 20261,0420
Oct 05, 20261,0420
Oct 02, 20261,042No prior observation