The CME jumped about 12% this week, with investors betting this exchange has the most to gain as the US cracks down on loosely regulated derivatives.
As you may have read, the Obama administration moved on Wednesday to exert more control over the shadowy over-the-counter derivatives market, now closely linked to the global credit crisis.
Federal regulators proposed subjecting all over-the-counter derivatives dealers -- whose trades are not made through an exchange, making them hard to monitor -- to "a robust regime of prudential supervision and regulation," including conservative capital, reporting and margin requirements.
The plan, sketched out by Treasury Secretary Timothy Geithner and top regulators at a news conference, marks a big step in the administration's push to rewrite rules for banks and financial markets in response to a credit crisis that has sent economies around the globe reeling.
In the United States, four large banks currently control over 90 percent of the derivatives market: JPMorgan Chase , Bank of America , Citigroup , and Goldman Sachs . All have received taxpayer aid.