NEW YORK: The most promising investment opportunities are increasingly found outside the United States, yet the vast majority of Americans place little stock in overseas markets.

That is a huge mistake, considering that China, India and other emerging markets promise superior growth, said Brent Ciliano, a portfolio strategist at Goldman Sachs Asset Management, who advises brokers and financial advisors on portfolio construction.

"The world is massively global. It follows your portfolio should be what the world is," he said.