World markets swell; Nasdaq sets record

Stocks rallied worldwide on Monday as investors bet that the economy can continue its dramatic turnaround despite all the challenges ahead. The S&P 500 rose 1.6 percent, following up on similar gains in Europe and Asia, and clawed back to within 6.1 percent of its record set in February. The headliner was China's stock market, which leaped 5.7 percent for its biggest gain since 2015, when it was in the midst of a bubble bursting. Treasury yields also...