Asian shares mostly gain after upbeat results for Nvidia and others lift US stocks

Asian stock markets posted mostly gains Friday as strong earnings from Nvidia and other U.S. technology companies provided support, though U.S. futures remained mixed ahead of Federal Reserve Chair Kevin Warsh's speech at Jackson Hole. Warsh signaled he would offer limited guidance on inflation control despite pressure from investors and economists seeking clarity on interest rate policy. Oil prices rose modestly as uncertainty persisted over when the Strait of Hormuz would reopen to tanker traffic following tensions with Iran.

European markets advanced, with Germany's DAX gaining 0.6% and France's CAC 40 climbing 1%. In the U.S., Gap shares surged over 17% after strong earnings and a leadership change at Old Navy, while PayPal fell more than 17% following reports that Advent and Stripe were abandoning acquisition talks.