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Mitsubishi UFJ Financial Group is the largest bank in Japan in terms of market capitalization and assets. It is the largest non-Chinese bank group globally and has a balance sheet slightly larger than those of JPMorgan Chase and HSBC Holdings. MUFG's operations in Japan account for around half of profit, banking in Thailand and Indonesia for around 15%, and equity-method earnings from Morgan Stanley most of the rest.

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.