Why BSX Stock Lost More Than Half Its Value While Sales Kept Rising

Boston Scientific (BSX) has fallen about 54% since late December 2025, and it now sits at $43.91, just above a 52-week low of $42.63. Device peers were mixed over the same nine months: Abbott lost about 17%, Medtronic barely moved, and Johnson & Johnson rose about 32%. The market repriced Boston Scientific's growth rate after management concentrated its guidance cut in two core product lines.