OITracker Cboe delayed data

Contract OI history

Back to NBBK

Jan 15, 2027 EXPIRATION

NBBK $17.50 Call

NBBK270115C00017500

Latest saved OI212Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
NBBK $17.50 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2121060 2026-10-08: 211 OI2026-10-09: 211 OI2026-10-13: 211 OI2026-10-14: 211 OI2026-10-16: 211 OI2026-10-20: 212 OI2026-10-23: 212 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

NBBK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2120
Oct 20, 2026212+1
Oct 16, 20262110
Oct 14, 20262110
Oct 13, 20262110
Oct 09, 20262110
Oct 08, 2026211No prior observation