Analysis of information sources in references of the Wikipedia article "معاملهگران انحصاری" in Persian language version.
A broker who operates a proprietary trading desk can significantly increase the buyside's implicit trading costs. In the past couple of years, some investment banks' quarterly gains from principal trading alone have approached $1 billion. In certain cases, the assets of individual bank's hedge funds have exceeded the combined assets of all of the bank's customers.
