Another thing to remember is that you don’t need all of your retirement funds on the day you retire. If you are reasonably healthy at 65 (or whenever you retire), *most *of your retirement funds will still have a 10, 20, or 30 year time frame.
This is why I think the “common wisdom” of moving to more conservative investments is hokum. If you expect to live 20 or 30 years after you retire a very large percentage of your retirement funds should still be invested in stocks. (e.g., an index fund.)
A very simplified example: assume you’re going to live another 20 years after retirement, and that your existing money at retirement will never lose or gain any value over that period. Also assume that you will spend the same amount every year of your retirement funds. That means, you spend 5% of your money every year. Even in this absurdly conservative example, 75% of your money has a 5 year or greater time horizon.
Stocks are the only investment that have given a positive inflation-adjusted return over the long haul. And over the long term, volatility is not the primary risk; inflation is.
Bonds, over the long term, consistently lose to inflation.
J.