New York Stock Exchange owner Intercontinental Exchange says it is investing up to $2 billion in betting platform Polymarket — less than a year after FBI agents roused its founder from bed at his Soho pad. Tuesday’s deal values Polymarket, which lets users bet on everything from sports results to the length of the government shutdown, at around $8 billion. The deal marks a marriage of old-guard finance — Intercontinental Exchange is one of the world’s leading exchanger operators, with a market