The widely followed barometer of the US stock market is trading at a record high.
The index crossed above 2,000 in the first hour of trading today. The market was moving higher after central bankers said last week that support for the global economy would continue.
The S&P 500 index was up 11 points, or 0.6 per cent, to 1,999 as of 10:12 am Eastern time.
In other trading, the Dow Jones industrial average was up 98 points, or 0.6 per cent, to 17,099.