Glossary
Liquidity
Liquidity is how much money is available to match at a given price on an exchange — thin liquidity means a lay price may not be fillable in size.
A lay price is only useful if there is money behind it to match. Liquidity measures that depth. Deep markets like football match odds fill easily; obscure markets may show a price that cannot be taken in any size.
A serious matched feed liquidity-gates its opportunities, so it does not surface a rating built on a price that cannot actually be matched.
Related terms & coverage
OddsRelay delivers this as part of one already-matched feed. See live coverage on the coverage dashboard.