The Best- And Worst-Performing Biotech Stocks, April 12 to April 19
These are the best and worst-performing medical and biotech stocks from April 12 to April 19, 2013. This screen includes biotechnology and medical companies traded on the New York Stock Exchange, the Nasdaq or the American Stock Exchange that had market capitalizations of more than $300 million as of a week ago. The data come from Interactive Data and Thomson Reuters Fundamentals via FactSet Research Systems. During this period the Amex Biotech Index increased 2.3%. The average stock on this list fell 0.4%, and the median up fell 1.1%.