NEW YORK ( TheStreet) -- Quantum Fuel Systems Technologies Worldwide (Nasdaq: QTWW) is trading at unusually high volume Tuesday with 2.3 million shares changing hands. It is currently at four times its average daily volume and trading down 28 cents (-5.8%) at $4.55 as of 2:57 p.m. ET. Quantum Fuel Systems Technologies Worldwide has a market cap of $54 million and is part of the consumer goods sector and automotive industry. Shares are unchanged year to date as of the close of trading on Friday. Quantum Fuel Systems Technologies Worldwide, Inc., an integrated alternative energy company, engages in the development and production of propulsion systems, energy storage technologies, and alternative fuel vehicles. TheStreet Ratings rates Quantum Fuel Systems Technologies Worldwide as a sell. Among the areas we feel are negative, one of the most important has been a generally disappointing historical performance in the stock itself. You can view the full Quantum Fuel Systems Technologies Worldwide 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.