Merrill Lynch & Co. (NYSE:MER) posted earnings above and beyond Wall Street expectations, proving the company's many naysers wrong.

The financial services giant posted earnings per share of $2.24 on revenue of $9.7 billion, easiily surpassing analysts' estimates of EPS of $2.02 EPS and $9.25 billion in revenue.

A few weeks ago, brokerage stocks were being crushed when Bear Stearns (NYSE:BSC) was facing sharp hedge fund markdowns from toxic mortgage losses. Bloomberg has an article pointing to some $11 billion that the Wall Street firms are having to eat because of a credit crunch on some of the private equity deals.

Chairman & CEO, Stan O'Neal, noted in the release that revenue diversification made the strong performance possible despite uneven market conditions in what he described as "at times, a hostile market environment." That is referring to the current mortgage and debt markets that have been punishing big Wall Street firms..

The firm did not offer any formal guidance since brokerage firms are subject to conditions in the stock and bond markets. Super-leveraged debt instruments and derivatives help brokers live by the sword and die by the sword. So, as long as the markets remain healthy overall, then Merrill and its main competitors among so-called bulge bracket firms should be fine.

Merrill Lynch shares had traded over $89.00 in early trading, but shares are nearly back to flat at $87.45 on the day.

Jon Ogg is a partner at 24/7 Wall St.; he does not own securities in the companies he covers.