Investment banker

I-banking redirects here. For internet banking, see online banking. Investment banks help companies and governments (or their agencies) raise money by issuing and selling securities in the capital markets (both equity and debt). Almost all investment banks also offer strategic advisory services for mergers, acquisitions, divestiture or other financial services for clients, such as the trading of derivatives, fixed income, foreign exchange, commodity, and equity securities. Trading securities for cash or securities (i.e., facilitating transactions, market-making), or the promotion of securities (i.e. underwriting, research, etc.).is referred to as "sell side."
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Noun
1. a banker who deals chiefly in underwriting new securities
(synonym) underwriter
(hypernym) agent, factor, broker
(hyponym) killer bee

Financial intermediaries who perform a variety of services, including aiding in the sale of securities, facilitating mergers and other corporate reorganizations, acting as brokers to both individual and institutional clients, and trading for their own accounts. See: Underwriters.