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 22 points (0.1%) at 15,424 as of Tuesday, Sept. 24, 2013, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,875 issues advancing vs. 1,030 declining with 132 unchanged. The Materials & Construction industry currently sits up 1.0% versus the S&P 500, which is up 0.2%. Top gainers within the industry include KB Home ( KBH), up 7.6%, Ryland Group ( RYL), up 6.3%, Masco Corporation ( MAS), up 3.1%, Eagle Materials ( EXP), up 3.0% and Quanta Services ( PWR), up 2.2%. TheStreet would like to highlight 3 stocks pushing the industry lower today: 3. Darling International ( DAR) is one of the companies pushing the Materials & Construction industry lower today. As of noon trading, Darling International is down $0.45 (-2.1%) to $21.01 on average volume. Thus far, 424,324 shares of Darling International exchanged hands as compared to its average daily volume of 693,100 shares. The stock has ranged in price between $20.84-$21.49 after having opened the day at $21.43 as compared to the previous trading day's close of $21.46. Darling International Inc. provides rendering, used cooking oil, and bakery residual recycling and recovery solutions to the food industry. The company operates in two segments, Rendering and Bakery. Darling International has a market cap of $2.5 billion and is part of the industrial goods sector. Shares are up 32.7% year to date as of the close of trading on Monday. Currently there are 3 analysts that rate Darling International a buy, no analysts rate it a sell, and 2 rate it a hold. TheStreet Ratings rates Darling International as a buy. The company's strengths can be seen in multiple areas, such as its largely solid financial position with reasonable debt levels by most measures, reasonable valuation levels and solid stock price performance. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full Darling International 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.