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Contract OI history

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Nov 20, 2026 EXPIRATION

BSX $45.00 Put

BSX261120P00045000

Latest saved OI6,783Oct 23, 2026
Last change+12vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $45.00 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. 6,7833,3910 2026-10-02: 6,438 OI2026-10-05: 6,445 OI2026-10-06: 6,462 OI2026-10-07: 6,489 OI2026-10-08: 6,489 OI2026-10-09: 6,492 OI2026-10-13: 6,700 OI2026-10-14: 6,700 OI2026-10-15: 6,717 OI2026-10-16: 6,729 OI2026-10-21: 6,771 OI2026-10-23: 6,783 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, 2026Viewing6,783+12
Oct 21, 20266,771+42
Oct 16, 20266,729+12
Oct 15, 20266,717+17
Oct 14, 20266,7000
Oct 13, 20266,700+208
Oct 09, 20266,492+3
Oct 08, 20266,4890
Oct 07, 20266,489+27
Oct 06, 20266,462+17
Oct 05, 20266,445+7
Oct 02, 20266,438No prior observation