One of the world's leading investors is expressing cautious optimism - - underscoring cautious - - regarding the fate of the global financial system.

Billionaire investor George Soros said Monday a pledge by European leaders to guarantee new bank financing is "a positive step" may help stabilize global financial markets, Bloomberg News reported.

Soros: We're finally getting the leadership we need

"In the last 72 hours, I think the European governments got religion and realized that this is a serious problem,'' Soros said at a press conference in Washington, Bloomberg News reported. "People are looking for some leadership and finally they are getting it." Soros is chairman of the $20 billion Fund Management LLC.

Along with actions by the major central banks to increase the supply of dollars in the global money supply, Europe's major industrialized nations announced fiscal policies to back bank-to-bank loans and recapitalize banks, The New York Times reported Monday. Britain said it will invest $73 billion in its banks, Germany is investing up to 500 billion euros or about $680 billion, and France will create an agency to offer state guarantees for banks and to channel money to them.

Further, Soros underscored that the United States government must recapitalize solvent banks, ft.com reported Monday. The U.S. said it intends to do that, but has not yet released details of its plan. Soros would like the U.S. government's recapitalization to take the form of preferred shares, which would dilute existing shareholders, but with private capital given the right to subscribe on the same terms, if private investors are able to put up more money, ft.com reported.