It means their marketplace have enough active participants to be able to do order-matching, and the rates are set by the marketplace as opposed to an Interbank rate with a margin on top.
CurrencyFair earns from fast liquidity and beating interbank rates—what does that actually imply?
How do Foreign Exchange transactions work?1 ansWhat do you think of a peer-to-peer FX platform where users directly exchange currencies without a middleman—can it reach enough liquidity to work?1 ansForeign Exchange: How does peerTransfer generate revenue?1 ansAs a traveler in Denmark, where should I exchange money to get a relatively good exchange rate?1 ans