Alex Dumortier, CFA

Pfizer Inc. and Allergan PLC announce a blockbuster $160 billion merger, but the market appears skeptical.

Berkshire Hathaway Inc. is now the largest shareholder of Phillips 66, with an 11.5% stake. What's the next energy company on Warren Buffett's radar?

Nike Inc announces a new $12 billion share repurchase program and raises its dividend 14%, as the market shows its appreciation.

After being priced below their initial pricing, shares of payments startup Square Inc are enjoying a significant "pop" on their first day of trading. Is it warranted?

Shares of Match Group will begin trading tomorrow, but investors may want to postpone their first date with the online dating company.

Angie's List puts IACInterActiveCorp's $8.75 per share on ice, but shareholders deserve a greater sense of urgency.

Warren Buffett says Berkshire Hathaway Inc. sold shares of Goldman Sachs and Wal-Mart Stores, Inc. in order to fund its $32 billion acquisition of Precision Castparts.

Legendary activist investor Carl Icahn is concerned that CEO compensation and short-termism are increasing inequality and harming the economy's long-term prospects.

Goldman Sachs highlights an uncomfortable reality: U.S. companies have been re-leveraging themselves to fund acquisitions, dividends, and buybacks.

New York University's Aswath Damodaran puts a $77 estimate on Valeant Pharmaceuticals International Inc. Wall Street analysts will need to catch up.

The transition to public markets may get bumpy for some of Silicon Valley's "unicorns."

Berkshire Hathaway's latest quarterly reveals a billion-dollar acquisition by one of its subsidiaries.

The company's third quarter results show accelerating growth.

Launched to capitalize on an over-hyped concept, Goldman Sachs finally shutters its BRIC fund.

Volkswagen AG and Valeant Pharmaceuticals have seen their market value decimated, but the scandals they face are qualitatively different.

Berkshire Hathaway must recognize a $7 billion capital gain on its investment in Kraft Heinz Co.

Soros Fund Management pulls a half-billion dollar account under Bill Gross's care at Janus after less than a year.

2015 has been a banner year for M&A. Here are three potential technology buyouts.

Activision Blizzard is acquiring King Digital Entertainment for $18 per share, a 20% discount to its March 2014 initial public offering price.

Visa Inc is making a smart decision in bringing Visa Europe back into the fold.