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Contract OI history

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Mar 19, 2027 EXPIRATION

BSX $75.00 Call

BSX270319C00075000

Latest saved OI1,978Oct 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 $75.00 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. 1,9789890 2026-10-02: 1,790 OI2026-10-05: 1,790 OI2026-10-06: 1,789 OI2026-10-07: 1,789 OI2026-10-08: 1,789 OI2026-10-09: 1,789 OI2026-10-13: 1,789 OI2026-10-14: 1,789 OI2026-10-15: 1,789 OI2026-10-16: 1,789 OI2026-10-21: 1,978 OI2026-10-23: 1,978 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, 2026Viewing1,9780
Oct 21, 20261,978+189
Oct 16, 20261,7890
Oct 15, 20261,7890
Oct 14, 20261,7890
Oct 13, 20261,7890
Oct 09, 20261,7890
Oct 08, 20261,7890
Oct 07, 20261,7890
Oct 06, 20261,789-1
Oct 05, 20261,7900
Oct 02, 20261,790No prior observation