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 Carnival Corp.

Ltd.

(NYSE:CCL) to post quarterly earnings at 35 cents per share on revenue of $6.69 million before the opening bell, according to data from Benzinga Pro.

Carnival shares fell 0.1% to $30.15 in after-hours trading.

Primoris Services Corp.