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 44 points (0.3%) at 15,539 as of Tuesday, Sept. 17, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 1,783 issues advancing vs. 1,120 declining with 134 unchanged. The Health Services industry currently sits up 0.3% versus the S&P 500, which is up 0.3%. On the negative front, top decliners within the industry include Smith & Nephew ( SNN), down 1.0%, and Humana ( HUM), down 0.8%. A company within the industry that increased today was Align Technology ( ALGN), up 2.7%. TheStreet would like to highlight 5 stocks pushing the industry lower today: 5. Cigna ( CI) is one of the companies pushing the Health Services industry lower today. As of noon trading, Cigna is down $0.72 (-0.8%) to $83.55 on light volume. Thus far, 509,692 shares of Cigna exchanged hands as compared to its average daily volume of 1.5 million shares. The stock has ranged in price between $83.20-$84.27 after having opened the day at $84.25 as compared to the previous trading day's close of $84.27. Cigna Corporation, a health services organization, provides insurance and related products and services in the United States and internationally. Cigna has a market cap of $23.7 billion and is part of the health care sector. Shares are up 56.5% year to date as of the close of trading on Monday. Currently there are 8 analysts that rate Cigna a buy, no analysts rate it a sell, and 6 rate it a hold. TheStreet Ratings rates Cigna as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures, notable return on equity, solid stock price performance and impressive record of earnings per share growth. We feel these strengths outweigh the fact that the company shows weak operating cash flow. Get the full Cigna 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.