Alex Dumortier, CFA

Warren Buffett's Berkshire Hathaway has amassed an $85 billion cash mountain. Here's why he can't invest it all, and a few acquisition ideas to put some of those dollars to work.

Even following a sharp rebound, the U.S.-listed shares of Deutsche Bank are roughly flat with respect to their Jan. 2009 low. At such depressed levels, is Deutsche Bank a buy?

With the $4.9 billion acquisition of Allied World Assurance, Prem Watsa aims to complete Fairfax Financial Holdings' largest-ever deal. But for this value investor, price is more important than size.

Mortgage rates were slightly lower on Tuesday. Meanwhile, measures of financial stress suggest that the credit environment is as favorable as it has been all year.

The main fixed-rate mortgages were little changed on Monday; meanwhile, Deutsche Bank and Credit Suisse are reportedly making headway in reaching a settlement with the Justice Department regarding their activities in the run-up to the mortgage crisis.

This week, BRK-A shares traded above $250,000 for the first time -- another remarkable milestone in Warren Buffett's unique corporate experiment.

You probably haven't heard of all three of these names, but they're “Warren Buffett stocks" -- they belong to companies with sustainable competitive advantages, and they're fairly priced.

The world's most valuable company last split its shares in June 2014, at a time when the stock price was above $600. Based on that, the next Apple stock split could be a long time coming.

As it embarks on an urgent restructuring, we asked three of our contributors to look beyond GoPro's next quarter: Where might the action sports camera specialist be in 10 years?

NantHealth Inc, ZTO Express Inc, and Valvoline Inc were among the worst-performing IPOs in 2016, but two of them are well-entrenched, profitable businesses that are worth looking at now.

George Soros is more engaged in managing his personal fortune than he has been in years. These are the five best-performing stocks of 2016 among Soros Fund Management's top holdings.

Two hedge fund managers sold nearly 20 million shares of the company during the second quarter. Is it time for you to sell, too?

The New York Stock Exchange is a globally recognized symbol of American capitalism. Here are seven things you probably didn't know about the New York Stock Exchange.

Just because stocks aren't in a bubble doesn't mean they aren't overvalued.

The acquisition of Medical Liability Mutual Insurer Inc. bolsters Berkshire Hathaway's leadership position in the healthcare liability insurance sector.

Distinguishing between confidence and hubris is extraordinarily difficult when you're leading a high-profile, adversarial campaign against a company, as billionaire investor Bill Ackman is discovering with his unsuccessful encounter with Herbalife Ltd.

Companies have been instrumental in the stock market rally through share buybacks, but at near-record levels, they are a red flag for value-conscious investors.

The Sequoia Fund disclosed that it has sold its remaining stake in troubled drug company Valeant Pharmaceuticals, but there are valuable lessons for investors to learn from Sequoia's multibillion-dollar mistake.

As bond yields collapse, investors are piling into utilities and telecoms stocks, but reaching for yield at any price is hardly a riskless strategy.

The S&P 500's earnings power doesn't justify new highs.