Klarna shares jumped 30% as it began trading on the New York Stock Exchange Wednesday, opening at $52 on its public markets debut. The Swedish buy now, pay later lender had priced shares at$40 the previous day, already above its expected initial public offering range, allowing it to raise $1.38 billion in the process and valuing it at$15 billion. It has been a long time coming for the lender. Klarna launched in the U.S. in 2019 and has since made the country its biggest customer market. It was original ...