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BGC Group Inc is a brokerage and financial technology company that serves financial markets, energy, and commodities markets. Its service and product offerings include brokerage for a wide range of financial products, including fixed income, equities, commodities, derivatives, and real estate, software solutions for trading platforms, clearing, trade execution, and other back-office services. Its clients mostly include banks, financial institutions, and corporate clients. BGC operates in one reportable segment, which is providing brokerage services. Geographically, the company generates a majority of its revenue from Europe, the Middle East and Africa (EMEA), followed by the Americas and the Asia-Pacific region.

Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from its operations to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the companies that make up its manufacturing, service, and retailing operations (which include Precision Castparts, Lubrizol, Clayton Homes, Marmon, and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis.