OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BLSH $55.00 Call

BLSH270115C00055000

Latest saved OI183Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BLSH $55.00 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. 189940 2026-10-02: 187 OI2026-10-05: 187 OI2026-10-06: 184 OI2026-10-07: 184 OI2026-10-08: 184 OI2026-10-09: 184 OI2026-10-13: 189 OI2026-10-14: 189 OI2026-10-16: 184 OI2026-10-20: 184 OI2026-10-23: 183 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, 2026Viewing183-1
Oct 20, 20261840
Oct 16, 2026184-5
Oct 14, 20261890
Oct 13, 2026189+5
Oct 09, 20261840
Oct 08, 20261840
Oct 07, 20261840
Oct 06, 2026184-3
Oct 05, 20261870
Oct 02, 2026187No prior observation