Chinese stocks have underperformed U.S. stocks for years, making them a bargain. : Billionaire investor Ray Dalio last week reminded investors what’s important about China: Its rapid and sustained economic growth is so important that it’s risky not to invest there. He also compared the scope of China’s rise to that of the British Empire and to the industrial revolution. Chinese stocks have broadly underperformed U.S. stocks for many years. But over the next decade, you might be well-served by diversifying your holdings and investing at least some of your money in the most populous country.