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 One out of the three major indices are trading lower today with the Dow Jones Industrial Average ( ^DJI) trading down 31 points (-0.2%) at 14,506 as of Friday, April 19, 2013, 12:55 PM ET. The NYSE advances/declines ratio sits at 2,094 issues advancing vs. 778 declining with 149 unchanged. The Metals & Mining industry currently is unchanged today versus the S&P 500, which is up 0.7%. On the negative front, top decliners within the industry include Harry Winston Diamond ( HWD), down 11.64, and Teck Resources ( TCK), down 1.02. TheStreet Ratings group would like to highlight 4 stocks pushing the industry higher today: 4. Turquoise Hill Resources ( TRQ) is one of the companies pushing the Metals & Mining industry higher today. As of noon trading, Turquoise Hill Resources is up $0.25 (4.81) to $5.45 on average volume Thus far, 1.1 million shares of Turquoise Hill Resources exchanged hands as compared to its average daily volume of 2.0 million shares. The stock has ranged in price between $5.24-$5.46 after having opened the day at $5.25 as compared to the previous trading day's close of $5.20. Turquoise Hill Resources Ltd., together with its subsidiaries, operates as a mineral exploration, development, and mining company. The company's principal mineral resource property, the Oyu Tolgoi project, is a copper-gold project located in the South Gobi region of Mongolia. Turquoise Hill Resources has a market cap of $5.1 billion and is part of the basic materials sector. Shares are down 31.5% year to date as of the close of trading on Thursday. TheStreet Ratings rates Turquoise Hill Resources as a sell. The company's weaknesses can be seen in multiple areas, such as its unimpressive growth in net income, weak operating cash flow and generally disappointing historical performance in the stock itself. Get the full Turquoise Hill Resources 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.