Jonathan Ernst/Reuters Goldman Sachs' commodities-trading department in 2017 suffered the worst performance in the bank's history as a public company, according to a Bloomberg report. Commodities trading, once one of the bank's most vaunted businesses, saw revenues plummet 75% in 2017 to less than $300 million. Goldman Sachs' commodities-trading team, once one of its most vaunted lines of business, has hit a new low.