NEW YORK ( TheStreet) -- Alliant Techsystems (NYSE: ATK) is trading at unusually high volume Tuesday with 872,824 shares changing hands. It is currently at four times its average daily volume and trading down $3.70 (-6.4%) at $53.91 as of 3:50 p.m. ET. Alliant Techsystems has a market cap of $2.02 billion and is part of the industrial goods sector and aerospace/defense industry. Shares are up 0.8% year to date as of the close of trading on Monday. Alliant Techsystems Inc. engages in the supply of aerospace and defense products to the U.S. government, allied nations, and prime contractors. The company also supplies ammunition and related accessories to law enforcement agencies and commercial customers. The company has a P/E ratio of 7.1, above the average aerospace/defense industry P/E ratio of seven and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Alliant Techsystems as a hold. The company's strengths can be seen in multiple areas, such as its largely solid financial position with reasonable debt levels by most measures, attractive valuation levels and good cash flow from operations. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, disappointing return on equity and a generally disappointing performance in the stock itself. You can view the full Alliant Techsystems 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.