NEW YORK ( TheStreet) -- United Rentals (NYSE: URI) is trading at unusually high volume Thursday with 9.5 million shares changing hands. It is currently at 4.1 times its average daily volume and trading down $4.19 (-11%) at $33.79 as of 3:50 p.m. ET. United Rentals has a market cap of $3.67 billion and is part of the services sector and diversified services industry. Shares are up 28.5% year to date as of the close of trading on Wednesday. United Rentals, Inc., through its subsidiaries, operates as an equipment rental company. It offers approximately 3,000 classes of equipment for rent to customers comprising construction and industrial companies, manufacturers, utilities, municipalities, homeowners, and government entities. The company has a P/E ratio of 20.7, below the average diversified services industry P/E ratio of 21.3 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates United Rentals as a hold. The company's strengths can be seen in multiple areas, such as its notable return on equity, robust revenue growth and good cash flow from operations. However, as a counter to these strengths, we find that the company has not been very careful in the management of its balance sheet. You can view the full United Rentals Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.