NEW YORK ( TheStreet) -- Shares of Rentech (AMEX: RTK) have taken a tremendous swing upward. The stock is trading at $1.95 as of 3:41 p.m. ET, 21.1% above Tuesday's closing price of $1.61. Volume is at 7.1 million, 3.4 times the daily average of 2.1 million. Rentech has a market cap of $359.6 million and is part of the basic materials sector and chemicals industry. Shares are up 32% year to date as of the close of trading on Tuesday. Rentech Inc. provides alternative and clean energy solutions; and manufactures and sells nitrogen fertilizer products. TheStreet Ratings rates Rentech as a hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, solid stock price performance and expanding profit margins. However, as a counter to these strengths, we find that the company has not been very careful in the management of its balance sheet. You can view the full Rentech Ratings Report. See our top % gaining stocks list for other stocks that are soaring today, or get investment ideas from our investment research center. Interested in other stocks that are soaring? Get free SMS text alerts sent to you when the action happens by texting SOAR to 95370 or select from multiple alert options.