Robinhood just announced it's launching pro and college football prediction markets. This is an expansion of their existing event contracts, but a massive move into the sports world. They're structuring it like a financial market, not traditional sports betting, and it's offered through their derivatives unit. Could this be a major new revenue stream for the company and bring more users to the platform? https://www.cnbc.com/2025/08/19/robinhood-n...