Oppenheimer Holdings, Inc. engages as a middle-market investment bank and full-service broker-dealer. It operates through the following segments: Private Client, Asset Management, Capital Markets, and Corporate/Other. The Private Client segment consists of commissions and a proportionate amount of fee income earned on assets under management (AUM), net interest earnings on client margin loans and cash balances, fees from money market funds, custodian fees, net contributions from stock loan activities and financing activities, and direct expenses. The Asset Management segment consists of fee income earned on AUM from investment management services of Oppenheimer Asset Management Inc. The Capital Markets segment offers investment banking, institutional equities sales, trading, and research, taxable fixed income sales, trading, and research, public finance, and municipal trading. The Corporate/Other segment pertains to legal, compliance, accounting, and internal audit activities. The company was founded in 1881 and is headquartered in New York, NY.