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Contract OI history

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Dec 18, 2026 EXPIRATION

BLLN $40.00 Call

BLLN261218C00040000

Latest saved OI39Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BLLN $40.00 call open interest history 6 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 39190 2026-10-08: 29 OI2026-10-13: 29 OI2026-10-14: 29 OI2026-10-16: 39 OI2026-10-20: 39 OI2026-10-23: 39 OI Oct 08, 2026Oct 23, 2026

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

BLLN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing390
Oct 20, 2026390
Oct 16, 202639+10
Oct 14, 2026290
Oct 13, 2026290
Oct 08, 202629No prior observation