Oppenheimer Holdings Inc. provides middle-market investment banking and full service broker-dealer products and services. The company offers full-service brokerage services covering exchange-traded and over-the-counter corporate equity and debt securities, money market instruments, exchange-traded options and futures contracts, municipal bonds, mutual funds, and unit investment trusts; financial and wealth planning services; and margin lending services. It also provides asset management services, including separately managed accounts, portfolio and investment advisory, discretionary portfolio management services, fee-based non-discretionary accounts, institutional investment management services, and alternative investments services through vehicles, such as privately managed accounts, and retail and institutional separate accounts. In addition, the company offers investment banking services, including strategic advisory services and capital markets products; institutional equity sales and trading services; equity research services; equity, debt, and index options; convertible bonds; and event driven sales and trading services. Further, it provides fixed income sales and trading, fixed income research, public finance, and municipal trading services; securities lending services; underwriting, market-making, and trust services; and mortgage services to the developers of commercial properties. Additionally, the company is involved in proprietary trading and investment activities; and originating and servicing Federal Housing Administration insured multifamily and healthcare facility loans, as well as securitizing these loans into Ginnie Mae mortgage backed securities. It serves high-net-worth individuals and families, corporate executives, small and mid-sized businesses, endowments, foundations, insurance companies, and trust and pension funds in the Americas, Europe, the Middle East, and Asia. The company was founded in 1881 and is headquartered in New York, New York.