It is interesting to see why regulators let Lehman Brothers file for bankruptcy. In the six months, Federal Reserve and the Treasury Department intervened to save Bear Stearns, Fannie Mae, Freddie Mac and AIG when they faced a similar situation.
In March, the Fed organized a sale of Bear Stearns to JP Morgan. This involved the Fed assuming up to $29 bn of risk losses going forward.
The explosion of any of these companies would have certainly had an enormous effect on the market. Bear Stearns would have hit the market severely in a moment of high uncertainty, where as in the other cases, a failure would have had strong effects on the real economy.
In March, "Bear Stearns had over $9 trillion worth of derivatives, most of which shared with other major banks. Lehman Brothers had less than a tenh much of that exposure" said Barry Ritholtz, CEO of Fusion IQ
"The system wasn't ready for Bear to fail in March" said Jaret Seiberg, financial services analyst, "it couldn't have been unwound in an orderly fashion"
"Lehman was only incompetent enough to blow up and destroy themselves, where as Bear's degree of incompetence was enough to threaten the entire financial system" Ritholtz said.
It is clear that the market is nowadays more prepared to face the crisis. During these months, banks have adjusted their balance sheets and regulators have a better understanding of the credit crunch effects.
In any case it is too soon to say that this is over. The effects of the latest turmoil caused by the credit crunch might only become apparent in the next few weeks.