Editor's Note: TheStreet ratings do not represent the views of TheStreet's staff or its contributors. Ratings are established by computer based on metrics for performance (which includes growth, stock performance, efficiency and valuation) and risk (volatility and solvency). Companies with poor cash flow or high debt levels tend to earn lower ratings in our model Merck ( MRK) pushed the Health Care sector higher today making it today's featured health care winner. The sector as a whole closed the day up 1.6%. By the end of trading, Merck rose $0.93 (2.0%) to $47.49 on average volume. Throughout the day, 12,439,920 shares of Merck exchanged hands as compared to its average daily volume of 16,583,300 shares. The stock ranged in a price between $46.66-$47.49 after having opened the day at $46.88 as compared to the previous trading day's close of $46.56. Other companies within the Health Care sector that increased today were: Vertex Pharmaceuticals ( VRTX), up 61.9%, Catalyst Pharmaceutical Partners ( CPRX), up 56.7%, Healthways ( HWAY), up 17.0% and Anacor Pharmaceuticals ( ANAC), up 13.6%.
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