The company, which once occupied the One World Financial Center building in Manhattan, now bases its operations at 85 Broad Street in New York City.

[7] On May 8, 1997, The Wall Street Journal announced that Pittsburgh-based PNC Bank Corp. was in talks to buy Oppenheimer & Co. for about $500 million in cash, stock, and options.

In 1881, Harris' son William formed his own investment bank at Two Wall Street, Fahnestock & Co.,[13] which expanded through the decades and was eventually acquired in 1988 by E.A.

The new company, Fahnestock Viner Holdings, would eventually change its name in 2003 upon the acquisition of CIBC Oppenheimer's retail brokerage business (the Private Client and U.S. Asset Management Divisions).

[17]: 63 On November 4, 2007, CIBC announced that it agreed to sell to Oppenheimer & Co. its American domestic investment banking, equities, leveraged finance, and related debt capital markets businesses.

Additionally, CIBC agreed to provide an initial $1.5 billion lending, to the entity for financing the syndicated loans for American middle-market companies.

[20] In January 2015, Oppenheimer & Co. paid $20 million in civil settlements with U.S. regulators, who had alleged that the group had improperly sold penny stocks and did not take adequate steps to fight money laundering.