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Contract OI history

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Nov 20, 2026 EXPIRATION

BSX $50.00 Call

BSX261120C00050000

Latest saved OI7,529Oct 23, 2026
Last change+28vs 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. 7,5293,7640 2026-10-02: 6,002 OI2026-10-05: 6,015 OI2026-10-06: 6,127 OI2026-10-07: 5,983 OI2026-10-08: 5,983 OI2026-10-09: 6,037 OI2026-10-13: 6,208 OI2026-10-14: 6,208 OI2026-10-15: 6,193 OI2026-10-16: 6,280 OI2026-10-21: 7,501 OI2026-10-23: 7,529 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, 2026Viewing7,529+28
Oct 21, 20267,501+1,221
Oct 16, 20266,280+87
Oct 15, 20266,193-15
Oct 14, 20266,2080
Oct 13, 20266,208+171
Oct 09, 20266,037+54
Oct 08, 20265,9830
Oct 07, 20265,983-144
Oct 06, 20266,127+112
Oct 05, 20266,015+13
Oct 02, 20266,002No prior observation