U.S. stocks were mostly lower, with the Dow Jones index falling around 100 points on Friday.Shares of Coupang Inc (NYSE:CPNG) rose sharply during Friday's session after the company said its investigation into a former employee suspected of leaking customer data was conducted in close coordination with government authorities.The clarification followed market speculation that Coupang had handled the probe independently, without official oversight or third-party verification. The company said it worked with au ...