U.S. stock futures struggle ahead of more earnings, with Tesla due after the close By: MarketWatch October 20, 2021 at 05:39 AM EDT U.S. stocks could struggle to follow up on Tuesday's gains, as investors watch for another big batch of results. Read More >> Related Stocks: Abbott Laboratories Baker Hughes Company Biogen Idec Compass Inc Cl A Netflix Novavax Inc SPX Tesla, Inc. Verizon Communications