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Contract OI history

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Jan 21, 2028 EXPIRATION

BLSH $40.00 Call

BLSH280121C00040000

Latest saved OI162Oct 23, 2026
Last change-55vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $40.00 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. 2191090 2026-10-02: 216 OI2026-10-05: 217 OI2026-10-06: 217 OI2026-10-07: 217 OI2026-10-08: 219 OI2026-10-09: 219 OI2026-10-13: 219 OI2026-10-14: 219 OI2026-10-16: 217 OI2026-10-20: 217 OI2026-10-23: 162 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, 2026Viewing162-55
Oct 20, 20262170
Oct 16, 2026217-2
Oct 14, 20262190
Oct 13, 20262190
Oct 09, 20262190
Oct 08, 2026219+2
Oct 07, 20262170
Oct 06, 20262170
Oct 05, 2026217+1
Oct 02, 2026216No prior observation