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Contract OI history

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Dec 18, 2026 EXPIRATION

BLSH $50.00 Call

BLSH261218C00050000

Latest saved OI282Oct 23, 2026
Last change+8vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $50.00 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. 2821410 2026-10-02: 268 OI2026-10-05: 262 OI2026-10-06: 261 OI2026-10-07: 258 OI2026-10-08: 257 OI2026-10-09: 258 OI2026-10-13: 260 OI2026-10-14: 258 OI2026-10-16: 264 OI2026-10-20: 274 OI2026-10-23: 282 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, 2026Viewing282+8
Oct 20, 2026274+10
Oct 16, 2026264+6
Oct 14, 2026258-2
Oct 13, 2026260+2
Oct 09, 2026258+1
Oct 08, 2026257-1
Oct 07, 2026258-3
Oct 06, 2026261-1
Oct 05, 2026262-6
Oct 02, 2026268No prior observation