Liquidity is the parameter of a market at a betting exchange, which determines how big a bet a player could make at the market (or make it all). Liquidity depends on the turnover of funds at the betting market.
High liquidity means that the market has a large turnover of money, which means that the player can place a bet in this market, and a large one, and it will be accepted by another player (if the proposed odds are be optimal).
Low liquidity implies little or no turnover at the market rate. Hence, a player can make only a small bet that will be taken by another player, or just can not trade at all.
The highest liquidity has a betting exchange Betfair.
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