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Contract OI history

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Jan 21, 2028 EXPIRATION

BSX $35.00 Call

BSX280121C00035000

Latest saved OI985Oct 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 $35.00 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. 9854920 2026-10-02: 944 OI2026-10-05: 951 OI2026-10-06: 958 OI2026-10-07: 961 OI2026-10-08: 961 OI2026-10-09: 963 OI2026-10-13: 963 OI2026-10-14: 963 OI2026-10-15: 968 OI2026-10-16: 968 OI2026-10-21: 985 OI2026-10-23: 985 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, 2026Viewing9850
Oct 21, 2026985+17
Oct 16, 20269680
Oct 15, 2026968+5
Oct 14, 20269630
Oct 13, 20269630
Oct 09, 2026963+2
Oct 08, 20269610
Oct 07, 2026961+3
Oct 06, 2026958+7
Oct 05, 2026951+7
Oct 02, 2026944No prior observation