On the same day as nymex traders started shouting brent prices in dublin the ipe did away with its morning open - outcry session now such trades must be electronic or done in the pit after lunch . the new york exchange claims that customers such as hedge funds or energy companies prefer open - outcry because it allows for more liquidity 同一天，当纽约商品交易所的交易员开始在都柏林高喊布伦特原油期货价格的时候，伦敦国际石油交易所废除了上午的公开叫价交易：现在这类的交易都必须实行电子化，或者在午饭之后才能在交易所进行。
