NEW YORK ( TheStreet) -- Heckmann (NYSE: HEK) is trading at unusually high volume Tuesday with 9.9 million shares changing hands. It is currently at four times its average daily volume and trading down 18 cents (-3.8%) at $4.42 as of 3 p.m. ET. Heckmann has a market cap of $653.7 million and is part of the financial sector and financial services industry. Shares are down 31% year to date as of the close of trading on Monday. Heckmann Corporation operates as a services-based company focused on total water and wastewater solutions for shale or unconventional oil and gas exploration and production. TheStreet Ratings rates Heckmann as a sell. The company's weaknesses can be seen in multiple areas, such as its deteriorating net income, poor profit margins and weak operating cash flow. You can view the full Heckmann 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 falling on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVDOWN to 95370 or select from multiple alert options.