Diversification ranks among the most important components of many investment strategies. However, one of the world's greatest investors isn't gung ho about the idea. Warren Buffett once said, "Diversification is protection against ignorance.

The former Microsoft CEO said his investment strategy was partly influenced by Buffett.

Chamath Palihapitiya wrote that a handful of tech stocks have become so valuable that the S&P 500 index is a concentrated bet on those risky businesses.

The US government has sued a unit of Warren Buffett’s Berkshire Hathaway, accusing it of pushing borrowers into unaffordable loans—so customers would buy homes from the company’s manufactured housing business.

When it comes to famed investors whose moves others watch like hawks, Warren Buffett stands in a league of his own. As one of the world’s richest people, the 94-year-old “Oracle of Omaha” is still the chief executive officer of Berkshire Hathaway (NYSE: BRK.

While many investors poured into the stock market last year, legendary investor Warren Buffett eased on the brakes. Berkshire Hathaway, the investment company Buffett founded and still leads,

In a famous Arthur Conan Doyle story, “The Adventure of Silver Blaze,” Sherlock Holmes draws the attention of Scotland Yard’s Inspector Gregory to the “curious incident of the dog in the night-time.” Gregory,

Warren Buffett is rightfully considered one of the greatest investors of our time. Over 60 years of running Berkshire Hathaway (NYSE:BRK-A)(NYSE:BRK-B) has produced returns twice those of the S&P 500.