With U.S. stock futures trading slightly higher this morning on Thursday, some of the stocks that may grab investor focus today are as follows:Wall Street expects Kroger Co. KR to report quarterly earnings at 99 cents per share on revenue of $34.10 billion before the opening bell, according to data from Benzinga Pro. Kroger shares gained 0.7$67.51 in after-hours trading.Aviat Networks Inc. AVNW posted upbeat results for its fourth quarter on Wednesday. Aviat Networks reported quarterly earnings of 83 c ...