Valued at a market cap of $385 billion, home improvement retailer Home Depot (HD) is among the largest companies in the world. Over the last two decades, Home Depot has returned 830% to shareholders. However, cumulative returns are much higher at 1,380% if we account for dividend reinvestments. Comparatively, the S&P 500 Index ($SPX) has returned 639% in dividend-adjusted gains since November 2004. Let’s see what you should expect from Home Depot’s upcoming earnings report next week, and whether the blue-chip dividend stock remains a top investment choice right now. What Do Analysts Expect fro…