UPDATE: How to manage your 401(k) to ensure your retirement doesn't stink
UPDATE: How to buy mutual funds
'Fiduciary rule' may create a $10 trillion exchange-traded behemoth by 2020
UPDATE: New rule may create a $10 trillion ETF juggernaut by 2020
UPDATE: How to buy bonds
Investors routinely pour cash into recently launched funds. Is that a mistake?
Fund companies that don't sell cheap funds are struggling.