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 105 points (0.6%) at 16,554 as of Tuesday, April 22, 2014, 12:55 PM ET. The NYSE advances/declines ratio sits at 2,226 issues advancing vs. 749 declining with 155 unchanged. The Diversified Services industry currently sits up 1.0% versus the S&P 500, which is up 0.6%. Top gainers within the industry include Rent-A-Center ( RCII), up 14.8%, Shutterstock ( SSTK), up 4.3%, Robert Half International ( RHI), up 2.1%, ManpowerGroup ( MAN), up 1.5% and Jacobs Engineering Group ( JEC), up 1.4%. TheStreet would like to highlight 3 stocks pushing the industry higher today: 3. YY ( YY) is one of the companies pushing the Diversified Services industry higher today. As of noon trading, YY is up $2.39 (3.5%) to $71.27 on heavy volume. Thus far, 1.9 million shares of YY exchanged hands as compared to its average daily volume of 2.3 million shares. The stock has ranged in price between $68.80-$72.00 after having opened the day at $69.18 as compared to the previous trading day's close of $68.88. YY Inc., through its subsidiaries, operates an online social platform in the People's Republic of China. YY has a market cap of $3.7 billion and is part of the technology sector. Shares are up 37.0% year-to-date as of the close of trading on Monday. Currently there are 4 analysts who rate YY a buy, no analysts rate it a sell, and none rate it a hold. TheStreet Ratings rates YY as a hold. The company's strengths can be seen in multiple areas, such as its notable return on equity, robust revenue growth and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we find that the stock itself is trading at a premium valuation. Get the full YY Ratings Report now. 3x UPSIDE POTENTIAL: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.