http://www.cnbc.com/2015/10/14/jack-bogle-follow-these-4-investing-rules-ignore-the-rest.html Jack Bogle, founder of the whole's largest mutual fund, Vanguard Group, is a long-term advocate of simple long-term Index investing. He has a basic portfolio consisting of ONLY US Stocks and US Bonds. As you grow older, more percentage should shift toward Bonds instead of Stocks. At 86 years old, his current asset allocation is 50% Stocks 50% Bonds. This is very different from what most financial books advice regarding asset allocation: taking 100 minus away your age, that should be your stock allocation, and the rest are bonds. This would result in Bogle having only 14% in stocks, which is a little under-invested. More Links What to Own during Rate Hikes? Fine Print of CPF Money Withdrawal 5 Financial Things to do in your 20s Singapore Finance Minister on Personal Finance Part 2 The 4 rules Bogle set for investing under such investment period: 1. ......