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Contract OI history

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Jan 21, 2028 EXPIRATION

BLSH $35.00 Call

BLSH280121C00035000

Latest saved OI55Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $35.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 57280 2026-10-02: 57 OI2026-10-05: 57 OI2026-10-06: 57 OI2026-10-07: 57 OI2026-10-08: 57 OI2026-10-09: 53 OI2026-10-13: 54 OI2026-10-14: 55 OI2026-10-16: 55 OI2026-10-20: 55 OI2026-10-23: 55 OI Oct 02, 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, 2026Viewing550
Oct 20, 2026550
Oct 16, 2026550
Oct 14, 202655+1
Oct 13, 202654+1
Oct 09, 202653-4
Oct 08, 2026570
Oct 07, 2026570
Oct 06, 2026570
Oct 05, 2026570
Oct 02, 202657No prior observation