H&R Block, Inc. (HRB) has had an impressive run over the past year. The stock has appreciated a whopping 56%, significantly outperforming the 29% rally of the industry it belongs to and the 17% growth of the Zacks S&P 500 composite.What’s Behind the RallyHRB has recorded better-than-expected earnings and revenue performance in the past four quarters, driven by improvements in net average charge in both Assisted and DIY, DIY volume growth and disciplined cost management.We believe that the main drivers of th ...