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 down today with the Dow Jones Industrial Average ( ^DJI) trading down 266 points (-2.0%) at 12,979 as of Wednesday, Nov. 7, 2012, 2:19 PM ET. The NYSE advances/declines ratio sits at 512 issues advancing vs. 2,488 declining with 87 unchanged. The Materials & Construction industry currently sits down 1.4% versus the S&P 500, which is down 1.9%. On the negative front, top decliners within the industry include Vulcan Materials Company ( VMC), down 4.0%, Chicago Bridge & Iron Company ( CBI), down 2.3%, Fluor Corporation ( FLR), down 2.3%, Fastenal Company ( FAST), down 1.1% and Cemex S.A.B. de C.V ( CX), down 0.7%. TheStreet Ratings group would like to highlight 3 stocks pushing the industry lower today: 3. LSB Industries ( LXU) is one of the companies pushing the Materials & Construction industry lower today. As of noon trading, LSB Industries is down $4.59 (-11.0%) to $37.26 on heavy volume Thus far, 276,916 shares of LSB Industries exchanged hands as compared to its average daily volume of 140,100 shares. The stock has ranged in price between $37.15-$41.08 after having opened the day at $40.60 as compared to the previous trading day's close of $41.85. LSB Industries, Inc., through its subsidiaries, engages in the manufacture and sale of geothermal and water source heat pumps, air handling products, and chemical products. The company operates in two segments, Climate Control Business and Chemical Business. LSB Industries has a market cap of $909.6 million and is part of the industrial goods sector. The company has a P/E ratio of 12.8, below the S&P 500 P/E ratio of 17.7. Shares are up 45.1% year to date as of the close of trading on Tuesday. Currently there are 3 analysts that rate LSB Industries a buy, no analysts rate it a sell, and none rate it a hold. TheStreet Ratings rates LSB Industries 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, attractive valuation levels, good cash flow from operations 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 LSB Industries Ratings Report now.