OITracker Cboe delayed data

Contract OI history

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Jan 19, 2029 EXPIRATION

BSX $45.00 Call

BSX290119C00045000

Latest saved OI181Oct 23, 2026
Last change-15vs 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. 2191090 2026-10-02: 182 OI2026-10-05: 189 OI2026-10-06: 190 OI2026-10-07: 197 OI2026-10-08: 197 OI2026-10-09: 196 OI2026-10-13: 197 OI2026-10-14: 197 OI2026-10-15: 196 OI2026-10-16: 219 OI2026-10-21: 196 OI2026-10-23: 181 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, 2026Viewing181-15
Oct 21, 2026196-23
Oct 16, 2026219+23
Oct 15, 2026196-1
Oct 14, 20261970
Oct 13, 2026197+1
Oct 09, 2026196-1
Oct 08, 20261970
Oct 07, 2026197+7
Oct 06, 2026190+1
Oct 05, 2026189+7
Oct 02, 2026182No prior observation