NEW YORK ( TheStreet) -- Dollar General Corporation (NYSE: DG) is trading at unusually high volume Wednesday with 11.1 million shares changing hands. It is currently at 4.1 times its average daily volume and trading up $1.57 (+3.4%) at $48.33 as of 10:20 a.m. ET. Dollar General has a market cap of $16.41 billion and is part of the services sector and retail industry. Shares are up 17.9% year to date as of the close of trading on Tuesday. Dollar General Corporation operates as a discount retailer primarily in the southern, southwestern, midwestern, and eastern United States. The company has a P/E ratio of 20.2, below the average retail industry P/E ratio of 21.8 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Dollar General as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, impressive record of earnings per share growth, compelling growth in net income, solid stock price performance and largely solid financial position with reasonable debt levels by most measures. We feel these strengths outweigh the fact that the company shows low profit margins. You can view the full Dollar General Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.