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 68 points (0.4%) at 15,371 as of Thursday, May 30, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 1,814 issues advancing vs. 1,135 declining with 104 unchanged. The Basic Materials sector currently sits up 0.7% versus the S&P 500, which is up 0.5%. Top gainers within the sector include Kinross Gold Corporation ( KGC), up 7.7%, Anglogold Ashanti ( AU), up 7.2%, Barrick Gold Corporation ( ABX), up 6.9%, Eldorado Gold ( EGO), up 6.1% and Goldcorp ( GG), up 5.4%. On the negative front, top decliners within the sector include Boardwalk Pipeline Partners ( BWP), down 4.84, Baker Hughes ( BHI), down 2.15, Enterprise Products Partners ( EPD), down 2.19, Kinder Morgan ( KMI), down 2.20 and Halliburton Company ( HAL), down 1.88. TheStreet Ratings group would like to highlight 5 stocks pushing the sector higher today: 5. Silver Wheaton Corporation ( SLW) is one of the companies pushing the Basic Materials sector higher today. As of noon trading, Silver Wheaton Corporation is up $0.97 (4.15) to $24.37 on average volume Thus far, 4.0 million shares of Silver Wheaton Corporation exchanged hands as compared to its average daily volume of 5.8 million shares. The stock has ranged in price between $23.65-$24.40 after having opened the day at $23.88 as compared to the previous trading day's close of $23.40. Silver Wheaton Corp., together with its subsidiaries, operates as silver and gold streaming company worldwide. The company has 20 long-term purchase agreements associated with silver and gold relating to 23 mining assets. Silver Wheaton Corporation has a market cap of $8.0 billion and is part of the metals & mining industry. The company has a P/E ratio of 14.0, below the S&P 500 P/E ratio of 17.7. Shares are down 37.6% year to date as of the close of trading on Wednesday. Currently there are 10 analysts that rate Silver Wheaton Corporation a buy, no analysts rate it a sell, and 1 rates it a hold. TheStreet Ratings rates Silver Wheaton Corporation as a hold. The company's strengths can be seen in multiple areas, such as its revenue growth, expanding profit margins and good cash flow from operations. However, as a counter to these strengths, we find that the stock has had a generally disappointing performance in the past year. Get the full Silver Wheaton Corporation 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.