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Contract OI history

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Oct 23, 2026 EXPIRATION

BSX $44.00 Call

BSX261023C00044000

Latest saved OI536Oct 23, 2026
Last change-21vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $44.00 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. 5572780 2026-10-02: 89 OI2026-10-05: 91 OI2026-10-06: 90 OI2026-10-07: 89 OI2026-10-08: 89 OI2026-10-09: 89 OI2026-10-13: 199 OI2026-10-14: 199 OI2026-10-15: 350 OI2026-10-16: 353 OI2026-10-21: 557 OI2026-10-23: 536 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, 2026Viewing536-21
Oct 21, 2026557+204
Oct 16, 2026353+3
Oct 15, 2026350+151
Oct 14, 20261990
Oct 13, 2026199+110
Oct 09, 2026890
Oct 08, 2026890
Oct 07, 202689-1
Oct 06, 202690-1
Oct 05, 202691+2
Oct 02, 202689No prior observation