Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link. All three major indices are trading up today with the Dow Jones Industrial Average ( ^DJI) trading up 90 points (0.6%) at 15,153 as of Tuesday, Sept. 10, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 1,842 issues advancing vs. 1,092 declining with 95 unchanged. The Health Services industry currently sits up 0.3% versus the S&P 500, which is up 0.5%. Top gainers within the industry include DENTSPLY International ( XRAY), up 2.5%, Universal Health Services ( UHS), up 2.0%, HCA Holdings ( HCA), up 1.4%, Grifols ( GRFS), up 1.5% and ResMed ( RMD), up 1.4%. TheStreet would like to highlight 3 stocks pushing the industry lower today: 3. Hologic ( HOLX) is one of the companies pushing the Health Services industry lower today. As of noon trading, Hologic is down $0.27 (-1.2%) to $21.40 on average volume. Thus far, 2.3 million shares of Hologic exchanged hands as compared to its average daily volume of 3.3 million shares. The stock has ranged in price between $21.34-$21.80 after having opened the day at $21.77 as compared to the previous trading day's close of $21.67. Hologic, Inc. develops, manufactures, and supplies diagnostics, medical imaging systems, and surgical products for women. Hologic has a market cap of $5.8 billion and is part of the health care sector. Shares are up 6.9% year to date as of the close of trading on Monday. Currently there are 12 analysts that rate Hologic a buy, 1 analyst rates it a sell, and 5 rate it a hold. TheStreet Ratings rates Hologic as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, good cash flow from operations, expanding profit margins 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 Hologic Ratings Report now. STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.