OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BL $35.00 Call

BL261120C00035000

Latest saved OI27Oct 23, 2026
Last change+3vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BL $35.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 27130 2026-10-09: 25 OI2026-10-13: 25 OI2026-10-14: 23 OI2026-10-16: 24 OI2026-10-20: 24 OI2026-10-23: 27 OI Oct 09, 2026Oct 23, 2026

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

BL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing27+3
Oct 20, 2026240
Oct 16, 202624+1
Oct 14, 202623-2
Oct 13, 2026250
Oct 09, 202625No prior observation