Buffett strongly believes in concentrating Berkshire Hathaway's investment capital into his best ideas. Five top-tier companies, with clear competitive advantages and phenomenal capital-return programs,

Warren Buffett is celebrating the successes of Berkshire Hathaway’s companies last year and in the 60 years since he took over a struggling New England textile company and began converting it into a massive conglomerate.

Billionaire Warren Buffett is viewed as one of the world’s greatest investors, so his annual letters to Berkshire Hathaway shareholders are always read closely for lessons