It's hard to argue with the S 500's (SNPINDEX: ^GSPC) historical performance. In the past 20 years, the broad index has produced a total return of 610%, translating to an annual average of 10.3%. If you're someone who likes to pick individual stocks, then I'd assume the goal is to try to outperform the S 500 over the long term.

A good place to look for investment ideas might be Berkshire Hathaway's portfolio. The Oracle of Omaha's conglomerate owns dozens of stocks. But to be clear, not all of them should be purchased, especially if you want to beat the S 500.

In fact, history says you should avoid this top Buffett stock if outperformance is the ultimate objective.

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Source Fool.com