NEW YORK ( TheStreet) -- Generac Holdings (NYSE: GNRC) is trading at unusually high volume Tuesday with 940,071 shares changing hands. It is currently at four times its average daily volume and trading down $3.36 (-11.4%) at $26.23 as of 3:40 p.m. ET. Generac has a market cap of $1.98 billion and is part of the consumer goods sector and consumer durables industry. Shares are up 5.6% year to date as of the close of trading on Monday. Generac Holdings Inc. designs, manufactures, and markets backup power generation products for residential, light-commercial, and industrial markets in the United States and Canada. The company has a P/E ratio of 23.1, below the average consumer durables industry P/E ratio of 23.5 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Generac as a hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, solid stock price performance and impressive record of earnings per share growth. However, as a counter to these strengths, we find that the company has not been very careful in the management of its balance sheet. You can view the full Generac 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.