NEW YORK ( TheStreet) -- Ardea Biosciences (Nasdaq: RDEA) is trading at unusually high volume Wednesday with 746,540 shares changing hands. It is currently at 5.5 times its average daily volume and trading down 67 cents (-3.7%) at $17.52 as of 9:45 a.m. ET. Ardea has a market cap of $473 million and is part of the health care sector and drugs industry. Shares are up 8.2% year to date as of the close of trading on Tuesday. Ardea Biosciences, Inc., a biotechnology company, focuses on the discovery and development of small-molecule therapeutics for the treatment of gout and cancer in the United States. TheStreet Ratings rates Ardea as a sell. The company's weaknesses can be seen in multiple areas, such as its feeble growth in its earnings per share, deteriorating net income, weak operating cash flow and generally disappointing historical performance in the stock itself. You can view the full Ardea Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center. Interested in other stocks that are falling on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVDOWN to 95370 or select from multiple alert options.