Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link. All three major indices are trading down today with the Dow Jones Industrial Average ( ^DJI) trading down 44 points (-0.3%) at 15,515 as of Monday, July 29, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 829 issues advancing vs. 2,095 declining with 99 unchanged. The Computer Software & Services industry currently sits down 0.7% versus the S&P 500, which is down 0.4%. On the negative front, top decliners within the industry include Cerner Corporation ( CERN), down 1.5%, Sap ( SAP), down 1.0%, Accenture ( ACN), down 0.9% and International Business Machines ( IBM), down 0.7%. TheStreet would like to highlight 5 stocks pushing the industry lower today: 5. Changyou.com ( CYOU) is one of the companies pushing the Computer Software & Services industry lower today. As of noon trading, Changyou.com is down $8.70 (-21.2%) to $32.37 on heavy volume. Thus far, 1.0 million shares of Changyou.com exchanged hands as compared to its average daily volume of 180,000 shares. The stock has ranged in price between $32.29-$36.46 after having opened the day at $35.88 as compared to the previous trading day's close of $41.07. Changyou.com Limited develops and operates online games in the People's Republic of China. Changyou.com has a market cap of $2.1 billion and is part of the technology sector. Shares are up 49.4% year to date as of the close of trading on Friday. Currently there are 6 analysts that rate Changyou.com a buy, no analysts rate it a sell, and 1 rates it a hold. TheStreet Ratings rates Changyou.com as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, solid stock price performance, impressive record of earnings per share growth, attractive valuation levels and expanding profit margins. Although the company may harbor some minor weaknesses, we feel they are unlikely to have a significant impact on results. Get the full Changyou.com Ratings Report now. STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.