Gold futures rallied to a three-week high after the US Federal Bureau of Investigation said it's reopening an inquiry into Hillary Clinton's use of private email while secretary of state, boosting demand for the metal as a haven.
The politically explosive development comes less than two weeks before the presidential election. Clinton held an average four-point lead over Republican Donald Trump in polls that include independent candidates as of Friday, according to Real Clear Politics. Equities erased gains, and the dollar fell after the announcement.
Bullion futures for December delivery gained as much as 1.3 per cent to $1,285.40 an ounce, the highest since October 4, in electronic trading after the settlement.
Before the FBI letter to Congress came out, futures had been stuck in a narrow trading range, with price swings measured by the 60-day historical volatility near the lowest in almost two years.
"It's a bored market that found a driver," said Tai Wong, the director of commodity products trading at BMO Capital Markets in New York. "One might consider this a cheap bet for a weekend surprise."