With U.S. stock futures trading lower this morning on Wednesday, some of the stocks that may grab investor focus today are as follows: Wall Street expects Helen of Troy Limited (NASDAQ:HELE) to report quarterly earnings at $1.04 per share on revenue of $458.24 million before the opening bell, according to data from Benzinga Pro. Helen of Troy shares gained 2.5% to $63.93 in after-hours trading.Saratoga Investment Corp. (NYSE:SAR) reported better-than-expected earnings and sales results for its second quarter. The company reported quarterly earnings of $1.33 per share which beat the analyst con…