In the field of finance, dark liquidity pools(dark pools of liquidity), also called dark liquidity(dark liquidity) or just dark pools (dark pools) or black pools ( black pools) – is trading volume or liquidity, which is hidden from most players (participants) exchange market. Most of these transactions form large financial institutions , information about which is not displayed on general trading platforms, that is, such auctions are held anonymously. Such transactions are usually carried out through alternative financial networks. (ECN) or directly between major players on the exchange market. Benefits One of the main benefits for institutional investors using dark pools is buying or selling large blocks of securities. , not showing their intentions to other market participants and thus avoiding influence on the market , since neither the size of the transaction, neither the buyer or seller in this case is disclosed.