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 All three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading up 79 points (0.5%) at 15,467 as of Wednesday, May 22, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 1,746 issues advancing vs. 1,183 declining with 133 unchanged. The Services sector currently sits up 0.3% versus the S&P 500, which is up 0.5%. On the negative front, top decliners within the sector include Target ( TGT), down 3.62, Priceline.com ( PCLN), down 1.81, SBA Communications ( SBAC), down 1.47, Netflix ( NFLX), down 1.23 and Moody's Corporation ( MCO), down 0.86. Top gainers within the sector include Liberty Media Corporation ( LMCA), up 14.0%, Saks Incorporated ( SKS), up 13.8%, Staples ( SPLS), up 4.8%, Home Depot ( HD), up 2.6% and Best Buy ( BBY), up 1.7%. TheStreet Ratings group would like to highlight 3 stocks pushing the sector lower today: 3. W.W. Grainger ( GWW) is one of the companies pushing the Services sector lower today. As of noon trading, W.W. Grainger is down $3.20 (-1.2%) to $264.14 on average volume Thus far, 147,118 shares of W.W. Grainger exchanged hands as compared to its average daily volume of 359,900 shares. The stock has ranged in price between $264.13-$269.17 after having opened the day at $266.99 as compared to the previous trading day's close of $267.34. W.W. Grainger, Inc. engages in the distribution of maintenance, repair, and operating supplies, as well as other related products and services for businesses and institutions primarily in the United States and Canada. W.W. Grainger has a market cap of $18.3 billion and is part of the wholesale industry. The company has a P/E ratio of 26.6, above the S&P 500 P/E ratio of 17.7. Shares are up 32.1% year to date as of the close of trading on Tuesday. TheStreet Ratings rates W.W. Grainger as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures, solid stock price performance, growth in earnings per share and increase in net income. 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 W.W. Grainger 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.