NEW YORK ( TheStreet) -- Nuance Communications (Nasdaq: NUAN) is trading at unusually high volume Wednesday with 12.7 million shares changing hands. It is currently at 4.3 times its average daily volume and trading up $1.01 (+4.3%) at $24.50 as of 9:36 a.m. ET. Nuance has a market cap of $7.2 billion and is part of the technology sector and computer software & services industry. Shares are up 29.8% year to date as of the close of trading on Tuesday. Nuance Communications, Inc. provides voice and language solutions for businesses and consumers worldwide. The company has a P/E ratio of 170.7, above the average computer software & services industry P/E ratio of 168.6 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Nuance as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, impressive record of earnings per share growth, compelling growth in net income, good cash flow from operations and expanding profit margins. Although the company may harbor some minor weaknesses, we feel they are unlikely to have a significant impact on results. You can view the full Nuance 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.