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 37 points (0.2%) at 17,115 as of Thursday, Sept. 4, 2014, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,639 issues advancing vs. 1,333 declining with 167 unchanged. The Health Care sector currently is unchanged today versus the S&P 500, which is up 0.2%. On the negative front, top decliners within the sector include Universal Health Services ( UHS), down 4.4%, Jazz Pharmaceuticals ( JAZZ), down 3.6%, Tenet Healthcare ( THC), down 3.5%, Biomarin Pharmaceutical ( BMRN), down 2.8% and Novo Nordisk A/S ( NVO), down 2.0%. Top gainers within the sector include WellPoint ( WLP), up 1.6%, Cigna ( CI), up 1.3%, Aetna ( AET), up 0.9%, UnitedHealth Group ( UNH), up 0.9% and Thermo Fisher Scientific ( TMO), up 0.6%. TheStreet would like to highlight 3 stocks pushing the sector lower today: 3. Intuitive Surgical ( ISRG) is one of the companies pushing the Health Care sector lower today. As of noon trading, Intuitive Surgical is down $6.67 (-1.4%) to $467.04 on light volume. Thus far, 95,569 shares of Intuitive Surgical exchanged hands as compared to its average daily volume of 471,900 shares. The stock has ranged in price between $466.54-$475.40 after having opened the day at $474.16 as compared to the previous trading day's close of $473.71. Intuitive Surgical, Inc. designs, manufactures, and markets da Vinci surgical systems, and related instruments and accessories. Intuitive Surgical has a market cap of $17.0 billion and is part of the health services industry. Shares are up 23.3% year-to-date as of the close of trading on Wednesday. Currently there are 10 analysts that rate Intuitive Surgical a buy, 2 analysts rate it a sell, and 5 rate it a hold. TheStreet Ratings rates Intuitive Surgical as a buy. The company's strengths can be seen in multiple areas, such as its largely solid financial position with reasonable debt levels by most measures, expanding profit margins, increase in stock price during the past year and notable return on equity. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full Intuitive Surgical 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.