With U.S. stock futures trading lower this morning on Tuesday, some of the stocks that may grab investor focus today are as follows: Wall Street expects Acuity Brands, Inc. (NYSE:AYI) to report quarterly earnings at $4.28 per share on revenue of $1.02 billion before the opening bell, according to data from Benzinga Pro. Acuity Brands shares gained 1.7% to $279.94 in after-hours trading.ReposiTrak, Inc. (NYSE:TRAK) reported better-than-expected fourth-quarter financial results and increased its quarterly dividend by 10%. ReposiTrak shares gained 4.6% to $19.32 in the after-hours trading session…