These 10 Stocks Make Up 85% of Warren Buffett's Portfolio

If you've ever wondered why Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) CEO Warren Buffett's name gets brought up so much on Wall Street, it's because of his impressive investing track record. Buffett isn't infallible, but he's delivered an annual average return of 20% since the mid-1960s for his shareholders. In aggregate, we're talking about a return of more than 2,800,000%!

What's even more amazing is that Buffett hasn't done anything the average investors couldn't do to net these huge gains. He focuses on a few sectors and industries that interest him, buys companies with clear-cut competitive advantages, and most importantly hangs onto those stakes for a very long time.

Another source of Buffett's success is concentration. The Oracle of Omaha doesn't believe diversification is necessary if you know what you're doing. This is readily apparent in Berkshire Hathaway's $302.6 billion investment portfolio. As of this past weekend, 85% of Berkshire's invested assets ($257.3 billion) were tied up in only 10 stocks.

Source Fool.com