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Contract OI history

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Jun 17, 2027 EXPIRATION

BSX $55.00 Put

BSX270617P00055000

Latest saved OI873Oct 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 $55.00 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. 9944970 2026-10-02: 994 OI2026-10-05: 994 OI2026-10-06: 894 OI2026-10-07: 894 OI2026-10-08: 894 OI2026-10-09: 881 OI2026-10-13: 873 OI2026-10-14: 873 OI2026-10-15: 873 OI2026-10-16: 873 OI2026-10-21: 873 OI2026-10-23: 873 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, 2026Viewing8730
Oct 21, 20268730
Oct 16, 20268730
Oct 15, 20268730
Oct 14, 20268730
Oct 13, 2026873-8
Oct 09, 2026881-13
Oct 08, 20268940
Oct 07, 20268940
Oct 06, 2026894-100
Oct 05, 20269940
Oct 02, 2026994No prior observation