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 up today with the Dow Jones Industrial Average ( ^DJI) trading up 70 points (0.5%) at 14,846 as of Wednesday, Aug. 28, 2013, 12:45 PM ET. The NYSE advances/declines ratio sits at 1,865 issues advancing vs. 1,062 declining with 104 unchanged. The Diversified Services industry currently sits up 0.2% versus the S&P 500, which is up 0.6%. Top gainers within the industry include 51job ( JOBS), up 3.9%, Shutterfly ( SFLY), up 3.0%, AthenaHealth ( ATHN), up 1.9%, Jacobs Engineering Group ( JEC), up 0.9% and MasterCard Incorporated ( MA), up 0.8%. TheStreet would like to highlight 4 stocks pushing the industry lower today: 4. Qiagen ( QGEN) is one of the companies pushing the Diversified Services industry lower today. As of noon trading, Qiagen is down $0.24 (-1.2%) to $20.26 on average volume. Thus far, 366,948 shares of Qiagen exchanged hands as compared to its average daily volume of 742,800 shares. The stock has ranged in price between $20.21-$20.34 after having opened the day at $20.26 as compared to the previous trading day's close of $20.50. QIAGEN N.V., through its subsidiaries, provides sample and assay technologies worldwide. Qiagen has a market cap of $4.9 billion and is part of the services sector. Shares are up 15.8% year to date as of the close of trading on Tuesday. Currently there are 3 analysts that rate Qiagen a buy, 1 analyst rates it a sell, and 10 rate it a hold. TheStreet Ratings rates Qiagen as a buy. 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, expanding profit margins and solid stock price performance. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full Qiagen 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.