Berkshire Hathaway Inc (BRK.A)

[MistySteel]

Avoid the Mistake That Cost Buffett 8 Years of Better Returns
By Richard Gibbons

There's one investment strategy you won't read much about on Fool.com, even though many have tried it. In fact, Warren Buffett spent eight years working with it before discarding it as worthless.

What investment strategy is that? Technical analysis.

http://www.fool.com/investing/value/2009/03/28/avoid-the-mistake-that-cost-buffett-8-years-of-bet.aspx