J&J's Guidance Wallops Views, But Boston Scientific, Medtronic Take A Toll

Johnson & Johnson (JNJ) stock tumbled Wednesday, though the company issued strong 2026 guidance, as Boston Scientific (BSX) and Medtronic (MDT) continue undercutting its electrophysiology business. Electrophysiology tools study the heart's rhythm. Pulsed field ablation, or PFA, is an electrophysiology tool that uses high-voltage electrical pulses to destroy problematic heart tissue, thus restoring normal rhythm for people with atrial fibrillation.… ...