Too big too fail is too big period as far as David Einhorn is concerned.

A financial service provider like Citi should break up, Einhorn, speaking at an investment management conference Monday, said.

Einhorn said defunct Lehman Bros. should not “exist in any size to threaten the financial system.”

The New York hedge fund manager warned the Wall Street firm would collapse in 2008. He likened the shakiness of the dead investment bank to American International Group and Bear Stearns.

Einhorn, president of Greenlight Capital, also said he is betting on a major currency collapse and an interest rate spike.

As a hedge against a currency collapse, Einhorn has been purchasing gold. He said financial reform is weakening the U.S. dollar.

The outspoken hedge fund manager offered his take on the marketplace at the Annual Value Investing Congress in New York.

The Wall Street Journal first reported his speech.