Asian stocks stumbled on Tuesday, as signs the US and China were preparing for trade talks later this month were tempered by uncertainty over whether the two nations could strike a durable deal. Early gains for MSCI's broadest index of Asia-Pacific shares outside Japan and the S&P 500 futures petered out to trade flat. Markets had earlier joined the rebound from Monday's cash session after US Treasury Secretary Scott Bessent said US President Donald Trump remains on track to meet Chinese leader Xi Jinping in South Korea in late Oct. Wall Street's main indexes ended as much as 2.2% higher overnight, led by chipmakers, after Trump struck a more conciliatory tone on trade tensions with China. Global equities had abruptly...