OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BLSH $50.00 Call

BLSH270115C00050000

Latest saved OI2,313Oct 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 $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. 2,3961,1980 2026-10-02: 2,306 OI2026-10-05: 2,306 OI2026-10-06: 2,310 OI2026-10-07: 2,309 OI2026-10-08: 2,321 OI2026-10-09: 2,396 OI2026-10-13: 2,306 OI2026-10-14: 2,316 OI2026-10-16: 2,316 OI2026-10-20: 2,314 OI2026-10-23: 2,313 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, 2026Viewing2,313-1
Oct 20, 20262,314-2
Oct 16, 20262,3160
Oct 14, 20262,316+10
Oct 13, 20262,306-90
Oct 09, 20262,396+75
Oct 08, 20262,321+12
Oct 07, 20262,309-1
Oct 06, 20262,310+4
Oct 05, 20262,3060
Oct 02, 20262,306No prior observation