Becton Dickinson's stock price suffered a cliff-like drop, plunging by 19.8%, heading toward its worst single-day decline since 1999.

This sharp fluctuation was triggered by the company's sudden announcement of a downward revision to its profit guidance for fiscal year 2026, which severely damaged market confidence. Investors rushed to sell their holdings, causing the stock price to plummet. This steep decline not only reflects concerns about BD Medical's medium- to long-term profitability, but also highlights the macroeconomic challenges facing the medical device industry. The downward revision of expectations may signal an overall slowdown in industry growth or indicate that specific business segments of the company are facing structural pressures.