NEW YORK ( TheStreet) -- Blue Coat Systems (Nasdaq: BCSI) is trading at unusually high volume Friday with 12.8 million shares changing hands. It is currently at 18.7 times its average daily volume and trading up $7.78 (+44.5%) at $25.26 as of 9:30 a.m. ET. Blue Coat Systems has a market cap of $758.9 million and is part of the technology sector and computer software & services industry. Shares are down 40.6% year to date as of the close of trading on Thursday. Blue Coat Systems, Inc. designs, develops, and sells products and services that secure, accelerate, and optimize the delivery of business applications, Web content, and other information to distributed users over a wide area network (WAN) or the public Internet/Web. The company has a P/E ratio of 30.6, above the average computer software & services industry P/E ratio of 29.6 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Blue Coat Systems as a 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 and expanding profit margins. However, as a counter to these strengths, we also find weaknesses including a generally disappointing performance in the stock itself, deteriorating net income and disappointing return on equity. You can view the full Blue Coat Systems 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.