WLT) jumped 17% after its third-quarter earnings nearly doubled Wall Street's estimate. The coal producer and mortgage concern earned $24.4 million, or 47 cents a share, on revenue of $312.2 million. Analysts, on average, projected a profit of 25 cents a share on revenue of $289 million. Shares of Walter soared $5.05 to $34.52. Evergreen Solar ( ESLR) shot up 11% after ThinkEquity upgraded the solar-products maker to buy from accumulate. The firm raised its price target on the stock to $20 from $10, noting it is now more confident about the company's growth outlook. Shares rose $1.22 to $12.31. Among losers, DaVita ( DVA - Get Report) shed 9% after kidney-dialysis company posted weaker-than-expected third-quarter results. Excluding one-time items, Davita earned $89.3 million, or 83 cents a share, on revenue of $1.32 billion. Analysts, on average, projected earnings of 84 cents a share and a top line of $1.33 billion. DaVita also said that its chief financial officer, Mark Harrison, will step down by mutual agreement with the company. The move is effective Nov. 30. Shares slid $5.95 to $59.50. Warner Music ( WMG) declined 10% after a report that the music publisher is withholding its material from Nokia's ( NOK) new online music store. The Wall Street Journal reported that Warner made the decision because another Nokia service is being used to distribute copyrighted songs. Shares of Warner fell $1.01 to $9.08. Shares of Las Vegas Sands ( LVS - Get Report) dropped 7% after the casino operator's third-quarter results came in well below estimates. The company's third-quarter adjusted profit fell 65% to $41.8 million, or 12 cents a share, missing Wall Street's forecast of 31 cents. Revenue rose 19.5% to $661 million, below the $783 million that analysts expected. Shares slid $8.53 to $116.77.