A former Goldman Sachs trader and his father were accused by US regulators of making illegal trades based on confidential information related to the Wall Street firm’s exchange-traded fund investments.

Spencer Mindlin, 33, and Alfred Mindlin, 68, reaped at least $57,000 in illicit profits, the Securities and Exchange Commission said.

Goldman Sachs closed down 4.63 percent, at $97.86 yesterday. It was the first time the bank closed below $100 since March 2009.