Meet a cyclical company that has turned itself into a reliable dividend stock.Home Depot (HD -1.50%) is a top blue-chip dividend stock and a well-known home improvement leader. But the stock has cooled off.As of late April, Home Depot stock was down over 20% from its peak. The stock is flat year to date compared to gains in the S&P 500, Nasdaq Composite, and Dow Jones Industrial Average (Home Depot is one of 30 Dow components).Let's dive into Home Depot's challenges, what to look for when it reports earning ...