With U.S. stock futures trading mixed this morning on Tuesday, some of the stocks that may grab investor focus today are as follows: Wall Street expects Lowe’s Companies, Inc. (NYSE:LOW) to report quarterly earnings at $2.93 per share on revenue of $21.10 billion before the opening bell, according to data from Benzinga Pro. Lowe’s shares fell 0.2% to $228.70 in after-hours trading. Palo Alto Networks, Inc. (NASDAQ:PANW) posted better-than-expected earnings for its third quarter. The company said it sees fourth-quarter adjusted earnings of $1.40 ...