NEW YORK ( TheStreet) -- Quantum Corporation (NYSE: QTM) is trading at unusually high volume Tuesday with 10.9 million shares changing hands. It is currently at 4.1 times its average daily volume and trading down 7 cents (-4%) at $1.70 as of 3:56 p.m. ET. Quantum has a market cap of $499 million and is part of the technology sector and computer hardware industry. Shares are down 52.4% year to date as of the close of trading on Monday. Quantum Corporation operates as a storage company that provides backup, recovery, and archive solutions to small businesses to multinational enterprises in the United States and internationally. The company has a P/E ratio of 218, equal to the average computer hardware industry P/E ratio and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Quantum as a sell. Among the areas we feel are negative, one of the most important has been generally deteriorating net income. You can view the full Quantum 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.