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 116 points (0.8%) at 15,038 as of Monday, Sept. 9, 2013, 12:44 PM ET. The NYSE advances/declines ratio sits at 2,262 issues advancing vs. 646 declining with 106 unchanged. The Services sector currently sits up 1.0% versus the S&P 500, which is up 0.7%. A company within the sector that fell today was UTi Worldwide ( UTIW), up 5.1%. Top gainers within the sector include Delta Air Lines ( DAL), up 6.9%, Sears Holdings Corporation ( SHLD), up 6.4%, LATAM Airlines Group S.A ( LFL), up 4.7%, AutoNation ( AN), up 4.1% and Mercadolibre ( MELI), up 4.9%. TheStreet would like to highlight 4 stocks pushing the sector lower today: 4. Canadian National Railway ( CNI) is one of the companies pushing the Services sector lower today. As of noon trading, Canadian National Railway is down $0.51 (-0.5%) to $95.86 on average volume. Thus far, 205,168 shares of Canadian National Railway exchanged hands as compared to its average daily volume of 498,600 shares. The stock has ranged in price between $95.63-$96.71 after having opened the day at $96.60 as compared to the previous trading day's close of $96.37. 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 $40.3 billion and is part of the transportation industry. Shares are up 5.9% year to date as of the close of trading on Friday. Currently there are 4 analysts that rate Canadian National Railway a buy, 1 analyst rates it a sell, and 15 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, growth in earnings per share, increase in net income, expanding profit margins and increase in stock price during the past year. We feel these strengths outweigh the fact that the company shows weak operating cash flow. 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.