3. LDK Solar ( LDK) is a vertically integrated manufacturer of PV products and is the world's largest producer of multi-crystalline solar wafers. The management guided improved business performance for 2010 fourth quarter and full-year 2011. The company expects revenue in the range of $870 to $910 million, wafer shipments of 615 MW to 620 MW, module shipments of 160 MW to 165 MW and gross margin between 25% and 27% for 2010 fourth quarter. Actual sales and earnings recorded for the fourth quarter were higher than analysts' estimates. For full-year 2011, LDK Solar expects revenue in the range of $3.5 to $3.7 billion, wafer shipments of 2.7 GW to 2.9 GW, module shipments of 800 MW to 900 MW and gross margin between 23.0% and 28.0%. Analysts polled by Bloomberg are positive on the stock and expected it to deliver around 35% return in a year's time. The stock is trading at 4.9 times its estimated 2011 earnings.