请教下面这几个经纪商哪个交易成本比较低?买卖股票和etf的话?# StockJ*y2012-08-02 07:081 楼请教下面这几个经纪商哪个交易成本比较低?买卖股票和etf的话?请指点。非常感谢!Charles SchwabETradeFidelityMerrill LynchScottradeTD AmeritradeUBS