With U.S. stock futures trading higher this morning on Wednesday, some of the stocks that may grab investor focus today are as follows: Wall Street expects Dollar Tree, Inc. (NASDAQ:DLTR) to report quarterly earnings at $1.43 per share on revenue of $7.64 billion before the opening bell, according to data from Benzinga Pro. Dollar Tree shares fell 0.3% to $119.95 in after-hours trading.Hewlett Packard Enterprise Co (NYSE:HPE) reported better-than-expected second-quarter financial results. Quarterly sales clocked in at $7.2 billion which beat the analyst consensus estimate of $6.823 billion. He…