With U.S. stock futures trading higher this morning on Thursday, some of the stocks that may grab investor focus today are as follows: Wall Street expects Walmart Inc. (NYSE:WMT) to report quarterly earnings at $0.64 per share on revenue of $168.57 billion before the opening bell, according to data from Benzinga Pro. Walmart shares gained 0.5% to $69.02 in after-hours trading. Titan Machinery Inc. (NASDAQ:TITN) reported weak preliminary financial results for the second quarter. The company ...