It is the Wall Street equivalent of a perfect game of baseball â 27 up, 27 down, the final score measured in millions of dollars a day. Despite the running unease in world markets, four giants of American finance managed to make money from trading every single day during the first three months of the year. Their remarkable 61-day streak is one for the record books. Perfect trading quarters on Wall Street are about as rare as perfect games in Major League Baseball. On Sunday, Dallas Braden of the Oakland Athletics pitched what was only the 19th perfect game in baseball history. But Bank of America, Citigroup, Goldman Sachs and JPMorgan Chase & Company produced the equivalent of four perfect games during the first quarter. Each one finished the period without losing money for even one day. Their showing, disclosed in quarterly financial filings, underscored the outsize â and controversial â role that trading has assumed at major financial institutions. It also drives home the widening lead that a handful of big banks are enjoying over lesser rivals on post-bailout Wall Street. Experts said it would be difficult to repeat such a remarkable feat this quarter. Even so, the performance could feed the debate in Washington over the role of proprietary trading at banks, as well as sometimes conflicted roles banks play as market makers in matching buy and sell orders. Risk management experts said the four banks, as well as other Wall Street players, reaped big rewards without necessarily placing big bets that stocks or bonds would go up or down. Instead, they mostly played matchmaker, profiting from the difference between the prices at which clients were willing to buy and sell. Banks said that customer order flows were particularly strong during the period. âThis is not about hitting home runs,â said Jaidev Iyer, who runs his own risk management consulting firm, J-Risk Advisors. âThis is just, as we call it, milking the market and your captive client base.â http://www.nytimes.com/2010/05/12/business/12bank.html Banksters.