All three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading up 18 points (0.1%) at 15,482 as of Monday, July 15, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 1,893 issues advancing vs. 1,042 declining with 108 unchanged. The Diversified Services industry currently sits up 0.4% versus the S&P 500, which is up 0.1%. Top gainers within the industry include RPX ( RPXC), up 6.2%, Zillow ( Z), up 2.9% and AthenaHealth ( ATHN), up 1.6%. On the negative front, top decliners within the industry include Mercadolibre ( MELI), down 3.5%, H&R Block ( HRB), down 1.1%, Ulta Salon Cosmetics & Fragrances ( ULTA), down 1.0%, Verisk Analytics ( VRSK), down 0.9% and Paychex ( PAYX), down 0.5%. TheStreet would like to highlight 5 stocks pushing the industry higher today: 5. CoStar Group ( CSGP) is one of the companies pushing the Diversified Services industry higher today. As of noon trading, CoStar Group is up $1.73 (1.3%) to $134.92 on heavy volume. Thus far, 93,956 shares of CoStar Group exchanged hands as compared to its average daily volume of 112,500 shares. The stock has ranged in price between $133.19-$136.07 after having opened the day at $134.20 as compared to the previous trading day's close of $133.19. CoStar Group, Inc. provides information, analytics, and marketing services to the commercial real estate industry in the United States, the United Kingdom, and France. CoStar Group has a market cap of $3.9 billion and is part of the financial sector. Shares are up 52.6% year to date as of the close of trading on Friday. Currently there are 4 analysts that rate CoStar Group a buy, 1 analyst rates it a sell, and 2 rate it a hold. TheStreet Ratings rates CoStar Group as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures, good cash flow from operations, 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 CoStar Group 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.