The closing price for the S&P 500 (GSPC) on January 2, 2018 was $2,695.81. It was up 0.5% for the day (up 0.8% from previous close). The latest price is $5,752.99.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
January 02 2018
$2,683.73
$2,695.89
$2,682.36
$2,695.81
3,367,250,000
Daily pricing data for the S&P 500 dates back to 12/30/1927, and may be incomplete.