In early November, Shayne Coplan had a week he will remember for the rest of his life: He received a phone call from the highest echelons of Mar-a-Lago. He went on TV for the first time. And he had his New York City apartment raided by the FBI.
The eventful few days underscore the precarious position of both 26-year-old Coplan and his startup Polymarket, the online prediction market that became a household name during the last few months of the presidential campaign—and, in the days and hours before election night, forecast the outcome more accurately than most polls.
