Home Depot (NYSE:HD) is a retailing giant. The company boasts a market cap of more than $100 billion and annual sales of roughly $75 billion. But that massive size doesn't mean that this blue chip can't grow quickly from here.

In the video below, Fool contributor Demitrios Kalogeropoulos provides two big reasons why Home Depot's stock is a good bargain right now. First, the home improvement retailer's sales growth is beating smaller rival Lowe's (NYSE:LOW)-- and Home Depot's outperformance is even more pronounced when you compare the two company's returns on invested capital, he notes.

Second, even after spiking higher these past two years, the home improvement market has a long way to improve before it returns to its longer-term average. Home Depot is poised to capture much of those gains, so the company should have no trouble hitting its ambitious targets for profitability growth into 2015.

Fool contributor Demitrios Kalogeropoulos has no position in any stocks mentioned. The Motley Fool recommends Home Depot. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.