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Contract OI history

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Jun 17, 2027 EXPIRATION

BSX $50.00 Put

BSX270617P00050000

Latest saved OI3,826Oct 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 $50.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3,9871,9930 2026-10-02: 3,987 OI2026-10-05: 3,987 OI2026-10-06: 3,887 OI2026-10-07: 3,887 OI2026-10-08: 3,887 OI2026-10-09: 3,879 OI2026-10-13: 3,879 OI2026-10-14: 3,879 OI2026-10-15: 3,879 OI2026-10-16: 3,879 OI2026-10-21: 3,826 OI2026-10-23: 3,826 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, 2026Viewing3,8260
Oct 21, 20263,826-53
Oct 16, 20263,8790
Oct 15, 20263,8790
Oct 14, 20263,8790
Oct 13, 20263,8790
Oct 09, 20263,879-8
Oct 08, 20263,8870
Oct 07, 20263,8870
Oct 06, 20263,887-100
Oct 05, 20263,9870
Oct 02, 20263,987No prior observation