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Contract OI history

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Oct 30, 2026 EXPIRATION

BLSH $35.50 Call

BLSH261030C00035500

Latest saved OI87Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $35.50 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. 87430 2026-10-09: 0 OI2026-10-13: 1 OI2026-10-14: 1 OI2026-10-16: 36 OI2026-10-20: 87 OI2026-10-23: 87 OI Oct 09, 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, 2026Viewing870
Oct 20, 202687+51
Oct 16, 202636+35
Oct 14, 202610
Oct 13, 20261+1
Oct 09, 20260No prior observation