Wall Street's Naked Swindle : A scheme to flood the market with counterfeit stocks helped kill Bear Stearns and Lehman Brothers

Rolling Stone reports:

On Tuesday, March 11th, 2008, somebody — nobody knows who — made one of the craziest bets Wall Street has ever seen. The mystery figure spent $1.7 million on a series of options, gambling that shares in the venerable investment bank Bear Stearns would lose more than half their value in nine days or less. It was madness — "like buying 1.7 million lottery tickets," according to one financial analyst.

But what's even crazier is that the bet paid.

Another informative article by Matt Taibbi.