Boston Scientific Drops 4% as Q3 Results Put Guidance in Focus

As seen on the 24/7 Wall St. homepage on October 28, 2026.

BSX Boston Scientific
Regular session
$40.27
-4.03% open $41.96

A 4% slide to $40.27 on the day Q3 results landed puts the $58 billion device maker's guidance under the microscope. Moves this size are rare for a name that usually trades like a steady compounder.

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Boston Scientific slid just over 4% to $40.27 on the day it reported third-quarter results, a rare single-session move for a stock long treated as a steady compounder in medical devices.

A sharp same-day drop after earnings signals that the headline numbers, the forward guidance, or both fell short of what investors were positioned for.

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At roughly 58 billion dollars in market capitalization, Boston Scientific is a widely held large-cap, so a move of this size reflects a reassessment of the growth trajectory and puts management's guidance commentary front and center.

Whether the guidance was revised, maintained, or tightened determines if this selloff is an entry point or a durable reset in expectations, so investors will be watching the commentary closely.

Mentioned: BSX