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 Two out of the three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading up 4 points (0.0%) at 14,823 as of Tuesday, April 30, 2013, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,672 issues advancing vs. 1,218 declining with 158 unchanged. The Health Services industry currently sits up 0.3% versus the S&P 500, which is unchanged. On the negative front, top decliners within the industry include Smith & Nephew ( SNN), down 1.97, WellPoint ( WLP), down 0.69 and UnitedHealth Group ( UNH), down 0.76. Top gainers within the industry include Aetna ( AET), up 4.1%, Covidien ( COV), up 1.9% and Express Scripts ( ESRX), up 1.3%. TheStreet Ratings group would like to highlight 4 stocks pushing the industry lower today: 4. Teleflex ( TFX) is one of the companies pushing the Health Services industry lower today. As of noon trading, Teleflex is down $3.02 (-3.7%) to $79.22 on heavy volume Thus far, 398,005 shares of Teleflex exchanged hands as compared to its average daily volume of 304,400 shares. The stock has ranged in price between $78.82-$82.02 after having opened the day at $82.02 as compared to the previous trading day's close of $82.24. Teleflex Incorporated provides medical technology products worldwide. Teleflex has a market cap of $3.4 billion and is part of the health care sector. Shares are up 15.4% year to date as of the close of trading on Monday. TheStreet Ratings rates Teleflex as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, good cash flow from operations, expanding profit margins, largely solid financial position with reasonable debt levels by most measures and increase in stock price during the past year. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full Teleflex 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.