Vanguard Target Retirement Funds

Target Date Funds are the most hands-off long-term investment product ever created. Vanguard Target Retirement series automatically holds a globally diversified mix of stocks and bonds shifting from aggressive to conservative as retirement approaches. Expense ratio 0.08 percent. Morningstar Gold rated. The automatic rebalancing removes behavioral errors costing average investors 1 to 2 percent per year through market timing. Best for anyone who wants to invest once and never touch it again.