New York-based The Goldman Sachs Group, Inc. (GS) is a financial institution that provides a range of financial services for corporations, financial institutions, governments, and high-net-worth individuals. With a market cap of $240.6 billion, the company specializes in investment banking, trading and principal investments, asset management and securities services. Companies worth$200 billion or more are generally described as “mega-cap stocks,” and GS definitely fits that description, with its market c ...