Following a 3% gain on Monday, the S&P 500 is about neutral after the first hour of trading on Tuesday, a fitting response to a better than expected earnings report from Home Depot contrasts with worse than anticipated housing data. As of 10:30 am EST, the S&P 500 is up 0.44% to 913.7, the Dow has edged up 0.04% to 8507, and the Nasdaq has turned positive to 1736. To start Tuesday off on a positive note, Home Depot announced its Q1 earnings beat expectations with a 44% gain. On Monday, a...