NEW YORK ( TheStreet) -- Rex Energy Corporation (Nasdaq: REXX) is trading at unusually high volume Wednesday with 3.9 million shares changing hands. It is currently at four times its average daily volume and trading up 52 cents (+5.4%) at $9.98 as of 4 p.m. ET. Rex Energy has a market cap of $474.6 million and is part of the basic materials sector and energy industry. Shares are down 35.9% year to date as of the close of trading on Tuesday. Rex Energy Corporation operates as an independent oil and gas company in the Appalachian, Illinois, and Denver-Julesburg Basins. TheStreet Ratings rates Rex Energy as a hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, good cash flow from operations and expanding profit margins. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, disappointing return on equity and a generally disappointing performance in the stock itself. You can view the full Rex Energy Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center. Interested in other stocks that are rising on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVUP to 95370 or select from multiple alert options.