Editor's Note: TheStreet ratings do not represent the views of TheStreet's staff or its contributors. Ratings are established by computer based on metrics for performance (which includes growth, stock performance, efficiency and valuation) and risk (volatility and solvency). Companies with poor cash flow or high debt levels tend to earn lower ratings in our model Two out of the three major indices are trading lower today with the Dow Jones Industrial Average ( ^DJI) trading down 40 points (-0.3%) at 14,679 as of Wednesday, April 24, 2013, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,751 issues advancing vs. 1,159 declining with 143 unchanged. The Services sector currently sits down 0.08 versus the S&P 500, which is unchanged. Top gainers within the sector include Lumber Liquidators Holdings ( LL), up 11.9%, Ryder System ( R), up 7.0%, FedEx Corporation ( FDX), up 1.6%, Magna International ( MGA), up 1.3% and McDonald's Corporation ( MCD), up 0.8%. On the negative front, top decliners within the sector include DeVry ( DV), down 21.10, Robert Half International ( RHI), down 11.17, Wyndham Worldwide Corporation ( WYN), down 6.32, Total System Services ( TSS), down 4.28 and Delhaize Group ( DEG), down 3.15. TheStreet Ratings group would like to highlight 5 stocks pushing the sector higher today: 5. Canadian National Railway ( CNI) is one of the companies pushing the Services sector higher today. As of noon trading, Canadian National Railway is up $0.60 (0.63) to $95.12 on average volume Thus far, 320,966 shares of Canadian National Railway exchanged hands as compared to its average daily volume of 660,900 shares. The stock has ranged in price between $94.50-$95.61 after having opened the day at $94.54 as compared to the previous trading day's close of $94.52. 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 $40.6 billion and is part of the transportation industry. The company has a P/E ratio of 15.7, below the S&P 500 P/E ratio of 17.7. Shares are up 3.9% year to date as of the close of trading on Tuesday. TheStreet Ratings rates Canadian National Railway as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, solid stock price performance, growth in earnings per share, notable return on equity and expanding profit margins. Although no company is perfect, currently we do not see any significant weaknesses which are likely to detract from the generally positive outlook. Get the full Canadian National Railway Ratings Report now. Exclusive Offer: Jim Cramer's 'go-to' small/mid-cap guru Bryan Ashenberg only buys stocks he thinks could return 50-100%. See his top picks for 14-days FREE.