Editor's Note: TheStreet ratings do not represent the views of TheStreet's staff or its contributors. Ratings are established by computer based on metrics for performance (which includes growth, stock performance, efficiency and valuation) and risk (volatility and solvency). Companies with poor cash flow or high debt levels tend to earn lower ratings in our model All three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading up 64 points (0.4%) at 14,866 as of Thursday, April 11, 2013, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,808 issues advancing vs. 1,100 declining with 140 unchanged. The Utilities sector currently sits up 0.2% versus the S&P 500, which is up 0.4%. Top gainers within the sector include Korea Electric Power ( KEP), up 2.4%, Edison International ( EIX), up 1.2%, FirstEnergy ( FE), up 1.0% and Duke Energy Corporation ( DUK), up 0.9%. On the negative front, top decliners within the sector include Centrais Eletricas Brasileiras ( EBR.B), down 2.82, Centrais Eletricas Brasileiras ( EBR), down 2.53 and AmeriGas Partners ( APU), down 1.90. TheStreet Ratings group would like to highlight 4 stocks pushing the sector higher today: 4. Calpine ( CPN) is one of the companies pushing the Utilities sector higher today. As of noon trading, Calpine is up $0.33 (1.58) to $21.21 on average volume Thus far, 1.4 million shares of Calpine exchanged hands as compared to its average daily volume of 2.8 million shares. The stock has ranged in price between $20.89-$21.22 after having opened the day at $21.00 as compared to the previous trading day's close of $20.88. Calpine Corporation, a wholesale power generation company, owns and operates natural gas-fired and geothermal power plants in North America. It operates natural gas-fired combustion turbines and renewable geothermal conventional steam turbines, as well as cogeneration power plants. Calpine has a market cap of $9.5 billion and is part of the utilities industry. The company has a P/E ratio of 49.4, above the S&P 500 P/E ratio of 17.7. Shares are up 15.2% year to date as of the close of trading on Wednesday. TheStreet Ratings rates Calpine as a sell. The company's weaknesses can be seen in multiple areas, such as its poor profit margins, weak operating cash flow and generally high debt management risk. Get the full Calpine Ratings Report now. Exclusive Offer: Jim Cramer's 'go-to' small/mid-cap guru Bryan Ashenberg only buys stocks he thinks could return 50-100%. See his top picks for 14-days FREE.