“Lille-Betis under four goals”

This trader is expressing a view that Lille OSC vs. Real Betis Balompié: O/U 5.5, Lille OSC vs. Real Betis Balompié: O/U 3.5, Lille OSC vs. Real Betis Balompié: O/U 4.5 are correlated outcomes, committing $16,828 to this thesis across 3 prediction markets on Polymarket.