U.S. stocks fell on Tuesday, following a bumpy market open, after data showed consumer confidence fell in October.

The Conference Board said its gauge of consumer confidence declined to 47.7 in October, while economists in a Reuters survey expected the measure to remain at 53.1, as it was originally reported in September.

The September index level was revised to 53.4.

Consumer spending accounts for roughly two-thirds of the U.S. economy.

The Dow Jones industrial average <.DJI> dropped 23.05 points, or 0.23 percent, to 9,844.91. The Standard & Poor's 500 Index <.SPX> fell 5.35 points, or 0.50 percent, to 1,061.60. The Nasdaq Composite Index <.IXIC> lost 17.98 points, or 0.84 percent, to 2,123.87.

(Editing by Padraic Cassidy)