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 down today with the Dow Jones Industrial Average ( ^DJI) trading down 62 points (-0.4%) at 14,778 as of Wednesday, May 1, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 958 issues advancing vs. 1,966 declining with 114 unchanged. The Health Services industry currently sits down 0.78 versus the S&P 500, which is down 0.42. On the negative front, top decliners within the industry include Vanguard Health Systems ( VHS), down 7.59, Opko Health ( OPK), down 4.61, Mettler-Toledo International ( MTD), down 2.97, Mindray Medical International ( MR), down 1.85 and HCA Holdings ( HCA), down 1.28. TheStreet Ratings group would like to highlight 5 stocks pushing the industry lower today: 5. Zimmer Holdings ( ZMH) is one of the companies pushing the Health Services industry lower today. As of noon trading, Zimmer Holdings is down $0.59 (-0.8%) to $75.86 on light volume Thus far, 232,090 shares of Zimmer Holdings exchanged hands as compared to its average daily volume of 1.1 million shares. The stock has ranged in price between $75.75-$76.41 after having opened the day at $76.20 as compared to the previous trading day's close of $76.45. Zimmer Holdings, Inc., through its subsidiaries, engages in the design, development, manufacture, and marketing of orthopedic reconstructive devices, spinal and trauma devices, biologics, dental implants, and related surgical products in the Americas, Europe, and the Asia Pacific. Zimmer Holdings has a market cap of $12.7 billion and is part of the health care sector. The company has a P/E ratio of 17.3, below the S&P 500 P/E ratio of 17.7. Shares are up 14.7% year to date as of the close of trading on Tuesday. TheStreet Ratings rates Zimmer Holdings as a buy. The company's strengths can be seen in multiple areas, such as its solid stock price performance, growth in earnings per share, increase in net income, largely solid financial position with reasonable debt levels by most measures and attractive valuation levels. We feel these strengths outweigh the fact that the company has had somewhat disappointing return on equity. Get the full Zimmer Holdings 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.