NEW YORK ( TheStreet) -- OraSure Technologies (Nasdaq: OSUR) is trading at unusually high volume Friday with one million shares changing hands. It is currently at 4.1 times its average daily volume and trading down $1.56 (-14%) at $9.61 as of 2:45 p.m. ET. OraSure has a market cap of $524.9 million and is part of the health care sector and health services industry. Shares are up 18.8% year to date as of the close of trading on Thursday. OraSure Technologies, Inc. develops, manufactures, markets, and sells oral fluid diagnostic products and specimen collection devices in the United States and internationally. TheStreet Ratings rates OraSure as a hold. 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 and solid stock price performance. However, as a counter to these strengths, we also find weaknesses including disappointing return on equity and weak operating cash flow. You can view the full OraSure Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.