Shares of Heckmann Corporation rose sharply on Wednesday. The stock closed 2.23% higher at $4.12 on volume of 2.67 million. Heckmann's shares have recently moved above their 50-day moving average, which is a bullish signal. However, the stock has been facing stiff resistance at around $4.40. Shares of HEK are currently trading nearly 20% below their 52-week high. Year-to-date, the stock has gained more than 2.20%, underperforming the broad market.