Putting the Walls Back on Wall Street
by Richard C. Leone

As the story behind the great financial meltdown unfolds, we can also see evidence of deep changes in the culture and practice of Wall Street firms. Greater risks were routinely taken in the pursuit of what had become expected huge returns. Firms drastically increased their trading for their own accounts, often using their regular customers as counter-parties to take the other side of a big trade.
Inevitably, this high rolling broke down some of the written and unwritten rules of Wall Street that has been widely recognized and respected. One of them was a sharp separation between proprietary trading and the buying and selling done for customer accounts. The proverbial Chinese Wall between those two activities was meant to ensure that a firm’s proprietary traders didn’t take advantage of its customers, either by knowing their positions when they might be caught short or when they were about to make large purchases that would move the market. There are a host of such activities from which conflicts of interest could all too easily emerge.





