From Seoul to Wall Street, the world’s hottest trade has suddenly gone bad.Shares in makers of computer chips and computer memory plunged yet again on Tuesday night. The dive sent the Nasdaq 100 index – perhaps the world’s most watched benchmark of tech giants – briefly into a correction. It was down more than 10 per cent from its record high in early June.Subscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles