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) -- Arch Coal (NYSE: ACI) hit a new 52-week low Thursday as it is currently trading at $3.96, below its previous 52-week low of $3.98 with 860,761 shares traded as of 9:40 a.m. ET. Average volume has been 11.1 million shares over the past 30 days. Arch Coal has a market cap of $902 million and is part of the basic materials sector and metals & mining industry. Shares are down 43.6% year to date as of the close of trading on Wednesday. Arch Coal, Inc. engages in the production and sale of steam and metallurgical coal from surface and underground mines located in the United States.