Wall Street‘s main indexes opened flat on Tuesday, as investors assessed a wave of quarterly earnings from corporate majors.At 09:30 a.m., the Dow Jones Industrial Average rose 13.17 points, or 0.03%, to 46,719.75. The S&P 500 gained 2.85 points, or 0.04%, to 6,737.98, while the Nasdaq Composite lost 9.71 points, or 0.04%, to 22,980.83.
