Who are the real masters of the universe on Wall Street? It's not hedge fund titans or investment bank CEOs. Rather, it's the pension and sovereign wealth funds of faraway lands, who manage massive amounts of money on behalf of their governments and people.

With billions -- even trillions -- to invest, the markets listen when these nations make a move. Check out which countries double as the the world's biggest investors and see how they put their money to work.

NEXT: Japan's Government Pension Investment