US STOCKS SNAPSHOT-Wall Street opens flat ahead of first presidential debate

Wall Street's main indexes were muted at the open on Tuesday as investors stayed away from making big bets ahead of the first presidential debate, while awaiting a reading on consumer confidence.

The Dow Jones Industrial Average fell 23.82 points, or 0.09%, at the open to 27,560.24. The S&P 500 opened lower by 0.68 points, or 0.02%, at 3,350.92, while the Nasdaq Composite dropped 8.52 points, or 0.08%, to 11,109.00 at the opening bell.