By Emily Nicolle,Ira Boudway and Carolyn Silverman / Bloomberg The FIFA World Cup is turning prediction markets into a public ledger of million-dollar bets, exposing big wins and dramatic losses as the soccer tournament attracts more money to the fast-growing industry. More than US$5 billion has been traded on the World Cup across Polymarket’s international exchange and US-regulated Kalshi Inc this year, according to a Bloomberg News analysis of Dune Analytics data and company records.