SBK commission

Does SBK work the same way with commissions as Smarkets (2%)?

Thanks for getting in touch. SBK charges 0 commission, while the standard commission on Exchange charges 2% commission on all winning settlements.

SBK claims to not build a margin into their odds and it’s been confirmed above that they do not charge commission on winnings either. Seems too good to be true! If this is the case, and they don’t operate a vigorish like a traditional bookmaker, how does SBK make money?