2. As of noon trading, Alexion Pharmaceuticals ( ALXN) is up $2.92 (3.3%) to $91.17 on heavy volume Thus far, 1.0 million shares of Alexion Pharmaceuticals exchanged hands as compared to its average daily volume of 1.3 million shares. The stock has ranged in price between $88.26-$91.47 after having opened the day at $88.26 as compared to the previous trading day's close of $88.25. Alexion Pharmaceuticals, Inc., a biopharmaceutical company, engages in the discovery, development, and commercialization of biologic therapeutic products in the United States, Europe, Latin America, Japan, and the Asia Pacific. Alexion Pharmaceuticals has a market cap of $17.4 billion and is part of the health care sector. The company has a P/E ratio of 79.2, above the S&P 500 P/E ratio of 17.7. Shares are up 23.4% year to date as of the close of trading on Thursday. Currently there are 15 analysts that rate Alexion Pharmaceuticals a buy, no analysts rate it a sell, and 4 rate it a hold. TheStreet Ratings rates Alexion Pharmaceuticals as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures, expanding profit margins, good cash flow from operations and impressive record of earnings per share growth. We feel these strengths outweigh the fact that the company has had somewhat disappointing return on equity. Get the full Alexion Pharmaceuticals Ratings Report now.