Oppenheimer Holdings Inc., through its subsidiaries, operates as a middle-market investment bank and full-service broker-dealer in the Americas, Europe, the Middle East, and Asia. The company offers 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, mutual fund managed accounts, discretionary portfolio management programs, investment advisory services, alternative investments, portfolio enhancement programs, investment advisory services, and institutional taxable fixed income portfolio management services, as well as taxable and non-taxable fixed income portfolios and strategies. In addition, the company offers investment banking services, such as strategi