OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BSX $50.00 Call

BSX270115C00050000

Latest saved OI3,418Oct 23, 2026
Last change+251vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $50.00 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. 3,4181,7090 2026-10-02: 3,229 OI2026-10-05: 3,254 OI2026-10-06: 3,015 OI2026-10-07: 3,022 OI2026-10-08: 3,022 OI2026-10-09: 3,049 OI2026-10-13: 3,096 OI2026-10-14: 3,096 OI2026-10-15: 3,072 OI2026-10-16: 3,086 OI2026-10-21: 3,167 OI2026-10-23: 3,418 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, 2026Viewing3,418+251
Oct 21, 20263,167+81
Oct 16, 20263,086+14
Oct 15, 20263,072-24
Oct 14, 20263,0960
Oct 13, 20263,096+47
Oct 09, 20263,049+27
Oct 08, 20263,0220
Oct 07, 20263,022+7
Oct 06, 20263,015-239
Oct 05, 20263,254+25
Oct 02, 20263,229No prior observation