Traders work in the Standard & Poor’s 500 pit at the CME Group Inc.'s Chicago Board of Trade in Chicago. The Standard & Poor’s 500 Index increased as much as 1 percent. Photographer: Tim Boyle/Bloomberg
Traders work in the Standard & Poor’s 500 pit at the CME Group Inc.'s Chicago Board of Trade in Chicago. The Standard & Poor’s 500 Index increased as much as 1 percent. Photographer: Tim Boyle/Bloomberg