Major stock market indexes in the United States were higher in premarket trading on Thursday after Federal Reserve Chair Jerome Powell said that stimulus will be needed until the coronavirus pandemic ends. Meanwhile, US President Joe Biden talked to his Chinese counterpart Xi Jinping for the first time since entering the White House. The Dow Jones Industrial Average rose 0.16% at 4:38 am ET, the Nasdaq 100 increased by 0.39% at the same time and the S&P 500 was up by 0.29% at 4:39 am ET.