NEW YORK ( TheStreet) -- Shares of Great Basin Gold (AMEX: GBG) were gapping down Thursday morning with an open price 10.3% lower than Wednesday's closing price. The stock closed at 78 cents Wednesday and opened today's trading at 70 cents. The average volume for Great Basin has been 2.7 million shares per day over the past 30 days. Great Basin has a market cap of $489.9 million and is part of the basic materials sector and metals & mining industry. Shares are down 8.9% year to date as of the close of trading on Wednesday. Great Basin Gold Ltd. engages in the acquisition, exploration, and development of precious metal deposits. It explores for gold, silver, and aggregate. TheStreet Ratings rates Great Basin as a sell. The company's weaknesses can be seen in multiple areas, such as its deteriorating net income, disappointing return on equity, poor profit margins, generally weak debt management and generally disappointing historical performance in the stock itself. You can view the full Great Basin Ratings Report. Get more investment ideas from our investment research center. Interested in other stocks that are gapping down? Get free SMS text alerts sent to you when the action happens by texting DOWN to 95370 or select from multiple alert options.