[patio11]

I would not actually suggest this as a strategy, since you almost certainly won't beat the market. Again, dumb luck. 75% of my investments are in index funds. If you're investing solely for returns, they should be substantially 100% of your equity allocation. (My last 25% is my concession to a deep-seated desire to play WoW with real money.)

[christiangenco]

This a hundred times. Mr. Money Mustache - the patio11 of the finance blogosphere - has a great overview on why index funds are the best long term strategy: http://www.mrmoneymustache.com/2011/05/18/how-to-make-money-...