NEW YORK ( TheStreet) -- Rosetta Stone (NYSE: RST) is trading at unusually high volume Friday with 521,072 shares changing hands. It is currently at 4.2 times its average daily volume and trading down $2.64 (-13.1%) at $17.62 as of 10:22 a.m. ET. Rosetta Stone has a market cap of $424.9 million and is part of the technology sector and computer software & services industry. Shares are down 3.9% year to date as of the close of trading on Thursday. Rosetta Stone Inc. provides technology-based language learning solutions worldwide. The company develops, markets, and sells language learning solutions, such as software, online services, and audio practice tools primarily under the Rosetta Stone brand name. The company has a P/E ratio of 20.3, equal to the average computer software & services industry P/E ratio and below the S&P 500 P/E ratio of 23.4. TheStreet Ratings rates Rosetta Stone as hold. The company's strengths can be seen in multiple areas, such as its largely solid financial position with reasonable debt levels by most measures, reasonable valuation levels and good cash flow from operations. However, as a counter to these strengths, we find that the growth in the company's net income has been quite unimpressive. You can view the full Rosetta Stone Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.