The Standard & Poor's 500 erased 0.24 per cent to 1,457.34. The Dow Jones Industrial Average edged lower 0.06 per cent to 13,548.94. The Nasdaq Composite advanced 0.10 per cent to 3,104.12.
"They did pre-announce that they would have to lower guidance, so I don't think it's a surprise to the markets," said Fitzpatrick of Caterpillar's reduced 2012 forecast.