NEW YORK ( TheStreet) -- Parexel International Corporation (Nasdaq: PRXL) is trading at unusually high volume Wednesday with 1.9 million shares changing hands. It is currently at four times its average daily volume and trading up $1.41 (+8.2%) at $18.60 as of 3:37 p.m. ET. Parexel International has a market cap of $923.7 million and is part of the health care sector and health services industry. Shares are down 19% year to date as of the close of trading on Tuesday. PAREXEL International Corporation, a biopharmaceutical services company, provides clinical research, medical communications, and consulting services, as well as advanced technology products and services to the pharmaceutical, biotechnology, and medical device industries worldwide. The company has a P/E ratio of 14.8, equal to the average health services industry P/E ratio and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Parexel International as a buy. The company's strengths can be seen in multiple areas, such as its impressive record of earnings per share growth, revenue growth, reasonable valuation levels, largely solid financial position with reasonable debt levels by most measures and notable return on equity. We feel these strengths outweigh the fact that the company shows low profit margins. You can view the full Parexel International Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center. Interested in other stocks that are rising on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVUP to 95370 or select from multiple alert options.