NEW YORK ( TheStreet) -- Northgate Minerals Corporation (AMEX: NXG) is trading at unusually high volume Thursday with 7.5 million shares changing hands. It is currently at 4.1 times its average daily volume and trading up 11 cents (+3.8%) at $3.01 as of 3:52 p.m. ET. Northgate has a market cap of $843.8 million and is part of the basic materials sector and metals & mining industry. Shares are down 9.7% year to date as of the close of trading on Wednesday. Northgate Minerals Corporation, together with its subsidiaries, engages in exploring, developing, processing, and mining gold and copper deposits in Canada and Australia. TheStreet Ratings rates Northgate as a hold. The company's strengths can be seen in multiple areas, such as its increase in net income, expanding profit margins and good cash flow from operations. However, as a counter to these strengths, we find that the stock has had a generally disappointing performance in the past year. You can view the full Northgate 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 rising on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVUP to 95370 or select from multiple alert options.