Greedy investors are even worse off. Diversifying works because the value and return of different investments often rise and fall independently of each other. As you get older, gradually reduce your exposure to equities but still diversify. Invest with those who consistently perform in the top 25 percent. Do not pick last year's biggest performer as they are probably due for a big correction.
Some investment managers invest only in large companies.
Others look for value while still others look for growth. Styles of investing fall in and out of favor in the marketplace. By investing with managers who have different styles, you reduce the volatility of your investments. If you would like some assistance in financial matters, the Assemblies of God Foundation is available to serve you.