NEW YORK ( TheStreet) -- Servicesource International (Nasdaq: SREV) is trading at unusually high volume Tuesday with 2.9 million shares changing hands. It is currently at four times its average daily volume and trading down $2.51 (-15.1%) at $14.07 as of 2 p.m. ET. Servicesource International has a market cap of $1.24 billion and is part of the technology sector and computer software & services industry. Shares are up 5.7% year to date as of the close of trading on Monday. ServiceSource International, Inc. manages the service contract renewals process of maintenance, support and subscription agreements for technology and technology-enabled healthcare, and life sciences companies. The company has a P/E ratio of 79.5, equal to the average computer software & services industry P/E ratio and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Servicesource International as a sell. The area that we feel has been the company's primary weakness has been its feeble growth in its earnings per share. You can view the full Servicesource International Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.