Share price drops (which can happen for many reasons) and that market cap looks similarly foolish. Market cap is only as impressive as the product or services

Share price drops (which can happen for many reasons) and that market cap looks similarly foolish. Market cap is only as impressive as the product or services the company actually offers. The companies you list have real products for sale in mature markets. Twitter is still trying to figure out how to monetize effectively in a very fickle market (free social networking) .. I don't think Northrop Grumman is having trouble figuring out how to make money selling fighter jets.