OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BSX $80.00 Call

BSX270115C00080000

Latest saved OI2,293Oct 23, 2026
Last change0vs 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. 2,2931,1460 2026-10-02: 2,275 OI2026-10-05: 2,274 OI2026-10-06: 2,274 OI2026-10-07: 2,274 OI2026-10-08: 2,274 OI2026-10-09: 2,274 OI2026-10-13: 2,274 OI2026-10-14: 2,274 OI2026-10-15: 2,274 OI2026-10-16: 2,274 OI2026-10-21: 2,293 OI2026-10-23: 2,293 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, 2026Viewing2,2930
Oct 21, 20262,293+19
Oct 16, 20262,2740
Oct 15, 20262,2740
Oct 14, 20262,2740
Oct 13, 20262,2740
Oct 09, 20262,2740
Oct 08, 20262,2740
Oct 07, 20262,2740
Oct 06, 20262,2740
Oct 05, 20262,274-1
Oct 02, 20262,275No prior observation