Home Depot (NYSE: HD) got a boost as demand for home improvement materials remained strong, but Walmart (NYSE: WMT) shares moved sharply lower as its customers felt inflationary pressures. A couple of major retailers reported their financial results Tuesday morning, and although many of the same challenges face both of them, their stock prices moved in opposite directions. The home improvement retail giant managed to sustain extremely high sales levels and boosted its guidance for the remainder of the year.