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 54 points (0.4%) at 15,287 as of Friday, May 17, 2013, 12:54 PM ET. The NYSE advances/declines ratio sits at 1,992 issues advancing vs. 899 declining with 140 unchanged. The Health Services industry currently sits up 0.5% versus the S&P 500, which is up 0.5%. Top gainers within the industry include Humana ( HUM), up 2.4%, UnitedHealth Group ( UNH), up 1.8%, Express Scripts ( ESRX), up 1.4%, WellPoint ( WLP), up 1.2% and Intuitive Surgical ( ISRG), up 1.0%. On the negative front, top decliners within the industry include Abbott Laboratories ( ABT), down 1.28, HCA Holdings ( HCA), down 1.27 and Stryker Corporation ( SYK), down 0.62. TheStreet Ratings group would like to highlight 4 stocks pushing the industry higher today: 4. Mindray Medical International ( MR) is one of the companies pushing the Health Services industry higher today. As of noon trading, Mindray Medical International is up $1.14 (2.86) to $41.23 on heavy volume Thus far, 663,749 shares of Mindray Medical International exchanged hands as compared to its average daily volume of 659,700 shares. The stock has ranged in price between $40.40-$41.43 after having opened the day at $40.50 as compared to the previous trading day's close of $40.09. Mindray Medical International Limited, through its subsidiary, Shenzhen Mindray, develops, manufactures, and markets medical devices worldwide. It operates in three segments: Patient Monitoring and Life Support Products, In-Vitro Diagnostic Products, and Medical Imaging Systems. Mindray Medical International has a market cap of $4.6 billion and is part of the health care sector. The company has a P/E ratio of 23.2, above the S&P 500 P/E ratio of 17.7. Shares are up 22.6% year to date as of the close of trading on Thursday. Currently there are 4 analysts that rate Mindray Medical International a buy, 1 analyst rates it a sell, and 2 rate it a hold. TheStreet Ratings rates Mindray Medical International as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures, expanding profit margins, good cash flow from operations and solid stock price performance. We feel these strengths outweigh the fact that the company has had somewhat disappointing return on equity. Get the full Mindray Medical International 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.