NEW YORK ( TheStreet) -- A123 Systems (Nasdaq: AONE) is trading at unusually high volume Wednesday with 10.4 million shares changing hands. It is currently at 4.1 times its average daily volume and trading down 21 cents (-15%) at $1.19 as of 3 p.m. ET. A123 Systems has a market cap of $279.9 million and is part of the technology sector and electronics industry. Shares are down 7.5% year to date as of the close of trading on Tuesday. A123 Systems, Inc., together with its subsidiaries, designs, develops, manufactures, and sells rechargeable lithium-ion batteries and energy storage systems worldwide. TheStreet Ratings rates A123 Systems as a sell. The company's weaknesses can be seen in multiple areas, such as its deteriorating net income, disappointing return on equity, generally disappointing historical performance in the stock itself and feeble growth in its earnings per share. You can view the full A123 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 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.