4. CF Industries Holdings ( CF) manufactures and markets nitrogen- and phosphate-based fertilizers. The company's marketing and distribution facilities are located in the Midwestern grain-producing states and other agricultural areas of the U.S. and Canada. Second quarter 2011 sales were $198.6 million, up from $166.9 million in the prior-year quarter. Higher ammonia and urea ammonium nitrate solutions boosted sales due to strong demand in North America. Net earnings for the period were $128.9 million, compared to $66.7 million for the three months ended June 2010. Cash and cash equivalents stood at $152.5 million. Of the 17 analysts covering the stock, 6 recommend a hold and 10 rate it a buy. Analysts expect the stock to gain 32% in the next one year. The stock is trading at 6.8 times its 2011 earnings.