OITracker Cboe delayed data

Contract OI history

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Jun 17, 2027 EXPIRATION

BSX $45.00 Call

BSX270617C00045000

Latest saved OI2,859Oct 23, 2026
Last change-11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $45.00 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. 2,8891,4440 2026-10-02: 2,881 OI2026-10-05: 2,867 OI2026-10-06: 2,873 OI2026-10-07: 2,876 OI2026-10-08: 2,876 OI2026-10-09: 2,880 OI2026-10-13: 2,889 OI2026-10-14: 2,889 OI2026-10-15: 2,888 OI2026-10-16: 2,888 OI2026-10-21: 2,870 OI2026-10-23: 2,859 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, 2026Viewing2,859-11
Oct 21, 20262,870-18
Oct 16, 20262,8880
Oct 15, 20262,888-1
Oct 14, 20262,8890
Oct 13, 20262,889+9
Oct 09, 20262,880+4
Oct 08, 20262,8760
Oct 07, 20262,876+3
Oct 06, 20262,873+6
Oct 05, 20262,867-14
Oct 02, 20262,881No prior observation