NEW YORK ( TheStreet) -- Qlik Technologies (Nasdaq: QLIK) is trading at unusually high volume Friday with 3.9 million shares changing hands. It is currently at four times its average daily volume and trading down $2.69 (-8.6%) at $28.62 as of 3:30 p.m. ET. Qlik has a market cap of $2.24 billion and is part of the technology sector and computer software & services industry. Shares are up 29.4% year to date as of the close of trading on Thursday. Qlik Technologies Inc. engages in the development, commercialization, and implementation of software products and related services that deliver data analysis and reporting solutions primarily in the Americas, and Europe. The company has a P/E ratio of 203.3, above the average computer software & services industry P/E ratio of 191.4 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Qlik as a sell. Among the areas we feel are negative, one of the most important has been weak operating cash flow. You can view the full Qlik 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 falling on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVDOWN to 95370 or select from multiple alert options.