Oppenheimer Holdings is an investment bank and full-service investment firm offering investment banking, financial advisory services, capital markets services, asset management, wealth management, and related products and services worldwide. The company, which once occupied the One World Financial Center building in Manhattan, now bases its operations at 85 Broad Street and world headquarters at 125 Broad Street in New York City. The company was founded in 1950 when a partnership was created to act as a broker-dealer and manage related financial services for large institutional clients, but origins of the firm trace back to 1881. The 1960s and 1970s were a time of great prosperity for the company, which eventually led to the 1975 restructuring. Oppenheimer & Co. formed three operating subsidiaries: In the 1980s, OpCo founding partners began looking for a buyer. Mercantile House Holdings, PLC, a publicly owned British corporation, made an offer in 1982, which was accepted and closed a year later. In 1986, a majority interest was bought in Oppenheimer & Co. and Oppenheimer Capital by the firm’s management, Stephen Robert and Nathan Gantcher, along with a small group of their colleagues from Mercantile, for $150 million. A year later, British & Commonwealth Holdings, PLC, acquired Mercantile. The 1990s brought another separation of the original firm when Oppenheimer Capitals senior personnel acquired a majority interest in the subsidiary and separated from OpCo. In 1995, Robert and Gantcher, who controlled about 40 percent of OpCos equity, became eager to locate additional capital to grow their firm. At first, OpCo explored options of forming a possible alliance with ING Groep NV that eventually fell through. Carrying on with this goal, management set out to merge with a bulge bracket bank that had access to the foreign markets.