After gaining 5.78% in January, the BioWorld Cancer Index reversed course, falling 4.74% year-to-date by the end of March. The index’s movement has closely tracked broader market trends. The Nasdaq Biotechnology Index climbed to 5.15% at the end of January but ended the first quarter down 1.54%. Similarly, the Dow Jones Industrial Average rose 4.7% in the first month of the year before slipping to a 1.28% loss through March.