What kind of portfolio doubles every 7 years?

When studies mention portfolio doubling every 7 years… does that mean the stock portfolio is 100% stocks?
How often would a 60% stock and 40% bond portfolio double?

A portfolio that gives an annual rate of return of about 10% will allow you to double your money every 7 years. Stock market returns on average about 10% annually over long period of time. So a portfolio with close to 100% stock would be my answer to doubling your money every 7 years - but note the volatility of the market short term so there are risks.

This is the Rule of 72 - it theorizes how long it takes to double your investment. I say “theorizes” because i dont know of any investments thar would guarantee me a fixed annual 10% rate of return currently.

1 Like