5 Things to Know Before the Stock Market Opens [Video]

U.S. stock futures are mixed after markets fell sharply in the prior session; UnitedHealth Group (UNH) shares are plunging in premarket trading after a report that the Justice Department is investigating the insurer’s Medicare billing practices; a Japanese group is reportedly planning to propose to Tesla (TSLA) that it invest in struggling automaker Nissan; Chinese e-commerce firm Alibaba Group (BABA) shares are rising on a report that GameStop (GME) CEO Ryan Cohen has raised his stake in the company; and energy-drink maker Celsius (CELH) stock is soaring after the company reported strong earnings and moved to acquire rival Alani Nu. Here’s what investors need to know today.

U.S. stock futures are mixed in premarket trading after markets fell in the prior session on investor concerns over consumer health. Dow Jones Industrial Averagefutures have turned 0.4% lower on the UnitedHealth report after the …