Robinhood Markets and Susquehanna International Group are acquiring a 90% stake in MIAXdx, an FTX-linked exchange formerly known as LedgerX, to expand into prediction markets. This strategic move positions them against competitors like Kalshi and Polymarket amid surging interest in event-based trading platforms. Acquisition Details: Robinhood and Susquehanna secure majority control of MIAXdx, a CFTC-licensed [...]