US stocks jump 1.3 per cent as FBI email review clears Clinton

US stocks jumped 1.3 per cent in opening trading today, joining a global rally after the FBI lifted the threat that Democratic candidate Hillary Clinton could face charges over her emails.

The early gains snapped a nine-day losing streak for the S&P 500 as controversial Republican candidate Donald Trump has gained ground on Clinton, the preferred choice of markets.

About two minutes into trading, the broad-based S&P 500 was up 1.3 per cent to 2,111.82 and the Dow Jones Industrial Average was up the same amount to 18,126.16.