OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BLSH $30.00 Call

BLSH270115C00030000

Latest saved OI428Oct 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 $30.00 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. 4282140 2026-10-02: 397 OI2026-10-05: 397 OI2026-10-06: 417 OI2026-10-07: 417 OI2026-10-08: 417 OI2026-10-09: 417 OI2026-10-13: 417 OI2026-10-14: 427 OI2026-10-16: 426 OI2026-10-20: 428 OI2026-10-23: 428 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, 2026Viewing4280
Oct 20, 2026428+2
Oct 16, 2026426-1
Oct 14, 2026427+10
Oct 13, 20264170
Oct 09, 20264170
Oct 08, 20264170
Oct 07, 20264170
Oct 06, 2026417+20
Oct 05, 20263970
Oct 02, 2026397No prior observation