EghtesadOnline: A worldwide slump in government bonds resumed after an unexpected pickup in Chinese manufacturing fueled optimism about the global economy. Futures on the S&P 500 Index advanced, copper reached a one-month high, gold rallied and the dollar weakened.

EghtesadOnline: U.S. stock index futures were higher on Tuesday, helped by upbeat manufacturing data from China and as investors awaited the outcome of the two-day Federal Reserve meeting.