NEW YORK ( TheStreet) -- Orion Marine Group (NYSE: ORN) is trading at unusually high volume Thursday with 1.3 million shares changing hands. It is currently at 4.1 times its average daily volume and trading down 56 cents (-4.8%) at $11.43 as of 4:01 p.m. ET. Orion Marine Group has a market cap of $322.8 million and is part of the industrial goods sector and materials & construction industry. Shares are up 3.5% year to date as of the close of trading on Wednesday. Orion Marine Group, Inc. operates as a marine specialty contractor serving the heavy civil marine infrastructure market. The company has a P/E ratio of 14.3, equal to the average materials & construction industry P/E ratio and below the S&P 500 P/E ratio of 21.5. TheStreet Ratings rates Orion Marine Group as hold. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures and good cash flow from operations. However, as a counter to these strengths, we also find weaknesses including disappointing return on equity, poor profit margins and a generally disappointing performance in the stock itself. You can view the full Orion Marine Group Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.