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Contract OI history

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Jan 15, 2027 EXPIRATION

BLSH $35.00 Call

BLSH270115C00035000

Latest saved OI397Oct 23, 2026
Last change+10vs 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. 3971980 2026-10-02: 369 OI2026-10-05: 369 OI2026-10-06: 370 OI2026-10-07: 371 OI2026-10-08: 371 OI2026-10-09: 371 OI2026-10-13: 383 OI2026-10-14: 384 OI2026-10-16: 387 OI2026-10-20: 387 OI2026-10-23: 397 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, 2026Viewing397+10
Oct 20, 20263870
Oct 16, 2026387+3
Oct 14, 2026384+1
Oct 13, 2026383+12
Oct 09, 20263710
Oct 08, 20263710
Oct 07, 2026371+1
Oct 06, 2026370+1
Oct 05, 20263690
Oct 02, 2026369No prior observation