Stocks track Wall St rally as Trump cools tariff threats in Davos

The gains were also fuelled by a surge in regional tech giants as the artificial intelligence trade roared back into the spotlight after the head of Nvidia said the sector needed "trillions of dollars" more investment. Markets have been whipped with volatility this week after the US president said at the weekend that he would hammer several nations -- including Germany, France, Britain and Denmark -- with levies for their pushback against his grab for the North Atlantic island. The threat sparked a warning of retaliation...