OITracker Cboe delayed data

Contract OI history

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Jun 17, 2027 EXPIRATION

BSX $80.00 Call

BSX270617C00080000

Latest saved OI3,970Oct 23, 2026
Last change-12vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $80.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4,0182,0090 2026-10-02: 4,012 OI2026-10-05: 4,017 OI2026-10-06: 4,018 OI2026-10-07: 4,018 OI2026-10-08: 4,018 OI2026-10-09: 4,010 OI2026-10-13: 4,010 OI2026-10-14: 4,010 OI2026-10-15: 4,006 OI2026-10-16: 4,000 OI2026-10-21: 3,982 OI2026-10-23: 3,970 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BSX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,970-12
Oct 21, 20263,982-18
Oct 16, 20264,000-6
Oct 15, 20264,006-4
Oct 14, 20264,0100
Oct 13, 20264,0100
Oct 09, 20264,010-8
Oct 08, 20264,0180
Oct 07, 20264,0180
Oct 06, 20264,018+1
Oct 05, 20264,017+5
Oct 02, 20264,012No prior observation