Wall St opens lower after S&P's record close

Unexpectedly weak data from China tempered enthusiasm over the strength of global economy

US stocks opened slightly lower on Monday, on the heels of a record high for the S&P 500, following unexpectedly weak data from China that tempered enthusiasm over the strength of the global economy.

The Dow Jones industrial average was down 44.89 points, or 0.27%, at 16,407.83. The Standard & Poor's 500 Index was down 3.14 points, or 0.17%, at 1,874.90. The Nasdaq Composite Index was down 5.25 points, or 0.12%, at 4,330.97.