All three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading up 63 points (0.4%) at 15,199 as of Monday, July 8, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 1,878 issues advancing vs. 1,083 declining with 93 unchanged. The Services sector currently sits up 0.5% versus the S&P 500, which is up 1.0%. On the negative front, top decliners within the sector include Union Pacific ( UNP), down 1.3%, Visa ( V), down 1.1% and MasterCard Incorporated ( MA), down 0.7%. Top gainers within the sector include Priceline.com ( PCLN), up 3.1%, Ryanair Holdings ( RYAAY), up 2.4%, Macy's ( M), up 2.0%, Luxottica Group ( LUX), up 2.0% and Sirius XM Radio ( SIRI), up 1.9%. TheStreet would like to highlight 3 stocks pushing the sector lower today: 3. Canadian National Railway ( CNI) is one of the companies pushing the Services sector lower today. As of noon trading, Canadian National Railway is down $0.87 (-0.9%) to $97.07 on average volume. Thus far, 297,290 shares of Canadian National Railway exchanged hands as compared to its average daily volume of 684,700 shares. The stock has ranged in price between $96.56-$97.90 after having opened the day at $97.14 as compared to the previous trading day's close of $97.94. Canadian National Railway Company, together with its subsidiaries, engages in rail and related transportation business in North America. Canadian National Railway has a market cap of $41.4 billion and is part of the transportation industry. Shares are up 7.6% year to date as of the close of trading on Friday. Currently there are 3 analysts that rate Canadian National Railway a buy, 1 analyst rates it a sell, and 18 rate it a hold. TheStreet Ratings rates Canadian National Railway as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, good cash flow from operations, largely solid financial position with reasonable debt levels by most measures, increase in stock price during the past year and expanding profit margins. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full Canadian National Railway 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.