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A person who works for an investment bank, which is a financial institution that provides a variety of services for clients. Included among the services an investment banker may provide are underwriting, facilitating in transactions, assisting in mergers and acquisitions, and brokering. Typically, an investment banker's clients are institutional investors, but high net-worth individuals also hire them. The name can be misleading because investment bankers rarely provide retail banking services.
A firm that functions as an intermediary between organizations that need additional funds and individuals and organizations having surplus funds to invest. An investment banker, an expert in the financial markets, sells its expertise to organizations wishing to raise funds. See also primary distribution, standby underwriting.