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 47 points (0.3%) at 15,382 as of Tuesday, May 21, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 1,570 issues advancing vs. 1,367 declining with 136 unchanged. The Materials & Construction industry currently sits down 0.49 versus the S&P 500, which is up 0.2%. On the negative front, top decliners within the industry include Lennar Corporation ( LEN), down 2.55, PulteGroup ( PHM), down 2.41 and Cemex S.A.B. de C.V ( CX), down 2.24. TheStreet Ratings group would like to highlight 3 stocks pushing the industry lower today: 3. Empresas ICA S.A.B. de C.V ( ICA) is one of the companies pushing the Materials & Construction industry lower today. As of noon trading, Empresas ICA S.A.B. de C.V is down $0.61 (-6.2%) to $9.26 on heavy volume Thus far, 778,261 shares of Empresas ICA S.A.B. de C.V exchanged hands as compared to its average daily volume of 548,100 shares. The stock has ranged in price between $9.15-$10.09 after having opened the day at $9.95 as compared to the previous trading day's close of $9.87. Empresas ICA, S.A.B. de C.V., through its subsidiaries, primarily engages in construction and related activities in Mexico and Latin America. Empresas ICA S.A.B. de C.V has a market cap of $1.6 billion and is part of the industrial goods sector. The company has a P/E ratio of 1.1, below the S&P 500 P/E ratio of 17.7. Shares are up 6.1% year to date as of the close of trading on Monday. TheStreet Ratings rates Empresas ICA S.A.B. de C.V as a hold. Among the primary strengths of the company is its solid stock price performance. At the same time, however, we find that net income has been generally deteriorating over time. Get the full Empresas ICA S.A.B. de C.V 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.