Here's a copy/paste of the Matchbook rates:
The new system is based on bet size, regardless of whether your trade wins or loses. If you accept an offer, the fee is 1.0%. If you post an offer that is accepted, not only is there no fee, but Matchbook will pay you 0.2%. As demonstrated lately on many financial exchanges, liquidity explodes when people are paid to make offers.
How We Calculate the Rate
Commission rates of 1.0% or -0.2% will be applied to the lesser of your "bet" or "to win" amount. So regardless of whether you bet $1,000 to win $5,000, or $5,000 to win $1,000, your bet size is treated as only $1,000. In both cases, you pay $10 in commissions if you accept an offer, or you are paid $2 if your offer is accepted.
