Billionaire Warren Buffett Just Added Pool Corp. to Berkshire Hathaway's Portfolio. 7 Things Investors Should Know Before Piling Into the Stock.

Buffett and company have started buying a stock that's been swimming circles around the market for decades.Legendary investor and billionaire Warren Buffett invests through his holding company, Berkshire Hathaway. Buffett's fame and success have made him a Wall Street icon, so people pay attention to the stocks he buys and sells. Berkshire Hathaway has made headlines this year by selling enough stocks to raise the company's cash to more than $325 billion, an eye-popping financial war chest large enough to a ...