“Volatility in absence of liquidity” hurt Goldman and other big banks in the quarter, Harvey Schwartz, Goldman’s chief financial officer, said on a call with analysts. Goldman’s revenue from trading fixed-income securities, currencies and commodities (FICC) fell 19 percent, excluding gains from repayment of debt and the sale of most of its European insurance business in 2013. Overall, FICC revenue fell 29 percent to $1.22 billion, mainly due to a weaker performance in mortgages and credit products such as corporate bonds.