NEW YORK ( TheStreet) -- RailAmerica (NYSE: RA) is trading at unusually high volume Thursday with 744,241 shares changing hands. It is currently at four times its average daily volume and trading up $1.11 (+8.3%) at $14.46 as of 3:36 p.m. ET.

RailAmerica has a market cap of $748.9 million and is part of the services sector and transportation industry. Shares are up 3.1% year to date as of the close of trading on Wednesday.

RailAmerica, Inc. engages in the ownership and operation of short line and regional freight railroads in North America. As of December 31, 2009, it operated a portfolio of 40 individual railroads with approximately 7,400 miles of track in 27 U.S. states and 3 Canadian provinces.

TheStreet Ratings rates RailAmerica as a hold. The company's strengths can be seen in multiple areas, such as its growth in earnings per share, increase in net income and robust revenue growth. However, as a counter to these strengths, we find that the company's profit margins have been poor overall. You can view the full RailAmerica Ratings Report.

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