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Contract OI history

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Nov 27, 2026 EXPIRATION

BLSH $40.00 Call

BLSH261127C00040000

Latest saved OI6Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $40.00 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. 630 2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 1 OI2026-10-14: 3 OI2026-10-16: 4 OI2026-10-20: 4 OI2026-10-23: 6 OI Oct 08, 2026Oct 23, 2026

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

BLSH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6+2
Oct 20, 202640
Oct 16, 20264+1
Oct 14, 20263+2
Oct 13, 20261+1
Oct 09, 202600
Oct 08, 20260No prior observation