With U.S. stock futures trading slightly lower this morning on Tuesday, some of the stocks that may grab investor focus today are as follows:Wall Street expects AutoZone Inc. AZO to report quarterly earnings at $50.83 per share on revenue of$6.24 million before the opening bell, according to data from Benzinga Pro. AutoZone shares slipped 0.5% to close at $4,121.00 on Monday.Firefly Aerospace Inc. FLY posted a second-quarter loss of$5.78 per share, versus a year-ago loss of $4.60 per share. Its sales decl ...