 During the 1980s, Goldman Sachs was the only major investment bank with a strict policy against helping to initiate a hostile takeover, which increased the firm's reputation immensely among sitting management teams at the time.In 2017, Global Markets accounted for 37% of revenues.The segment is divided into four divisions and includes Fixed Income (the trading of interest rate and credit products, mortgage-backed securities, insurance-linked securities and structured and derivative products), Currency and Commodities (the trading of currencies and commodities), Equities (the trading of equities, equity derivatives, structured products, options, and futures contracts), and Principal Investments (merchant banking investments and funds).