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First BanCorp is a financial holding company. The company's operating segment includes Mortgage Banking; Consumer (Retail) Banking; Commercial and Corporate Banking; Treasury and Investments; United States Operations; and Virgin Islands Operations. The Consumer (Retail) Banking segment generates the majority of revenue, which consists of the Corporation's consumer lending and deposit-taking activities conducted mainly through its branch network and loan centres. Geographically, it derives a majority of revenue from Puerto Rico.

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.