根据最新数据，7月高盛Sigma x平台的黑池交易只有7%达到了正常机构投资者的交易量，即10000股的交易量或20万美元的交易额。

In June only 7% of trades on Goldman Sachs’s Sigma X network were of a size that institutional investors typically make—ie, 10, 000 shares or $200, 000 in value—according to the most recent data.

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现在有许多提供流动性的“黑池”，在里面银行和机构投资者匿名交易大宗股票。

There are now dozens of “dark pools” of liquidity, in which banks and institutional investors anonymously trade large blocks of shares.

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银行之间通过“block desk”直接交易由来已久，但“黑池”的应用提高了效率，技术使得“池子”之间的连接更加容易。

Banks have long traded directly with each other through their "block desks", but the use of pools enhances this and technology makes it easier for the pools to link up.

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