[Rothera Captures 15% of World Cup-Related Event Contract Trading Volume, Open Interest Surpasses Polymarket] Odaily Planet Daily News: Artemis data shows that Robinhood's self-built prediction market platform, Rothera, has captured 15% of the total trading volume for World Cup-related event contracts. Its current daily trading volume exceeds $134 million, with over 2.4 million users. The open interest has also surpassed Polymarket.