Stock futures are slightly lower this morning as the rally to start the year loses steam. Here's what investors need to know today.

Warehouse retail giant Costco Wholesale has sued the Trump administration as it seeks a refund for the tariffs it has paid as the Supreme Court considers whether they were enacted illegally.

Tesla posted second-quarter earnings that missed analysts' expectations as sales fell for the second straight quarter.

Lululemon Athletica launched a lawsuit over the weekend against Costco Wholesale, accusing the warehouse retail giant of infringing on its trademarks by selling clothing that is "confusingly similar" to designs trademarked by Lululemon.

Nike shares jumped in premarket trading Friday, a day after the athletic apparel giant topped fiscal fourth-quarter estimates.

Outraged by the Jan. 6 Capitol riot, a wilderness survival trainer spent years undercover climbing the ranks of right-wing militias. He didn’t tell police or the FBI. He didn’t tell family or friends....