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. NEW YORK ( TheStreet) -- Martin Marietta Materials (NYSE: MLM) hit a new 52-week high Friday as it is currently trading at $106.72, above its previous 52-week high of $106.57 with 49,114 shares traded as of 10:20 a.m. ET. Average volume has been 401,400 shares over the past 30 days. Martin Marietta has a market cap of $4.57 billion and is part of the industrial goods sector and materials & construction industry. Shares are up 9.3% year to date as of the close of trading on Thursday. Martin Marietta Materials, Inc., together with its subsidiaries, engages in the production and sale of aggregates for the construction industry primarily in the United States, Canada, the Bahamas, and the Caribbean Islands. The company has a P/E ratio of 49.2, above the S&P 500 P/E ratio of 17.7.