NEW YORK ( TheStreet) -- AECOM Technology Corporation (NYSE: ACM) is trading at unusually high volume Thursday with 3.4 million shares changing hands. It is currently at four times its average daily volume and trading down $3.32 (-14.7%) at $19.29 as of 2:25 p.m. ET. AECOM Technology has a market cap of $2.64 billion and is part of the services sector and diversified services industry. Shares are up 9.9% year to date as of the close of trading on Wednesday. AECOM Technology Corporation provides professional technical and management support services for commercial and government clients worldwide. The company has a P/E ratio of 9.9, equal to the average diversified services industry P/E ratio and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates AECOM Technology as a hold. The company's strengths can be seen in multiple areas, such as its revenue growth, attractive valuation levels and good cash flow from operations. However, as a counter to these strengths, we also find weaknesses including unimpressive growth in net income, disappointing return on equity and poor profit margins. You can view the full AECOM Technology Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.