S&P 500, Dow index values frozen, CME confirms to CNBC

CME Group confirmed to CNBC that there were issues affecting at least the calculations of the S&P 500 Index and the Dow Jones Industrial Average for its customers, Jesse Pound of CNBC reports. The last calculation for the Dow and S&P 500 happened at 10:41 a.m. ET, according to CNBC. Issues with data feeds for the indexes do not necessarily affect trading, it added.