With U.S. stock futures trading lower this morning on Thursday, some of the stocks that may grab investor focus today are as follows: Wall Street expects Walgreens Boots Alliance, Inc. (NASDAQ:WBA) to report quarterly earnings at $0.71 per share on revenue of $36.00 billion before the opening bell, according to data from Benzinga Pro. Walgreens shares gained 0.6% to $15.75 in after-hours trading.Micron Technology Inc (NASDAQ:MU) reported stronger-than-expected financial results for the third quarter. Micron said it sees fourth-quarter revenue of $7.6 billion, plus or minus $200 million, versus…