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UP Fintech Holding Ltd is an online brokerage firm focusing on Chinese investors. Its trading platform enables investors to trade in equities and other financial instruments on multiple exchanges of stocks and other derivatives. The company offers its customers brokerage and value-added services, including trade order placement and execution, margin financing, account management, investor education, community discussion, and customer support.

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.