A wave of risk aversion swept markets on Friday after U.S. President Donald Trump said he and his wife had tested positive for COVID-19 and will isolate, weeks ahead of the elections. Shortly before 0500 GMT, Trump said on Twitter that he and his wife had been tested for coronavirus after Hope Hicks, a senior advisor who recently traveled with the president, tested positive. U.S. stock futures fell on the news and Treasury yields dipped.
