American Express has slid the most in the Dow Jones Industrial Average since December 31st after setbacks including the end of the company’s partnership with warehouse-club chain Costco and a ruling by a federal judge that its policies prohibiting merchants from steering customers to cheaper cards violated antitrust laws.

American Express’s short-term stock results have been “disappointing,” as the company faces a variety of issues including the loss of its biggest reta(...)

David McWilliams: among a coterie of economic and market soothsayers who are scheduled to talk next Saturday, May 16th, at an “Investment Summit” at the Stillorgan Park hotel

Now that our merchant classes are on the up again and there’s a bit more cash floating about, it appears that playing the markets is back in vogue.Dav(...)

  Warren Buffett attends his company Berkshire Hathaway’s   annual shareholders’ meeting  in Omaha, Nebraska. Photograph: Reuters/Rick Wilking/Files

Shareholders in Berkshire Hathaway are expressing unease at the company’s deepening relationship with private equity group 3G Capital, ahead of an exp(...)

Photograph: Reuters /Nate Chute
Planet Business

Image of the week: Welcome signs A sign reading “This business serves everyone” is placed in the window of Bernadette’s Barbershop in downtown (...)

Kraft Foods has agreed to merge with Heinz, with analysts suggesting that the move will lead to considerable job losses. (Photograph: EPA/ANDY RAIN)

H.J. Heinz, which is controlled by Warren Buffett’s Berkshire Hathaway Inc. and buyout firm 3G Capital, said Wednesday that it agreed to buy the ma(...)

The current Kraft was created in a spinoff from Mondelez in October 2012. Mondelez inherited the company’s overseas snack businesses, giving it bigger growth opportunities internationally. (Photograph: David Paul Morris/Bloomberg)

3G Capital, the Brazilian private-equity firm, is understood to be in advanced talks to acquire Kraft Foods Group Inc. and merge it with ketchup make(...)

Warren Buffett:  a born investor who accumulated a $73 billion fortune while remaining indifferent to the trappings of wealth. Photograph: Paul Morigi/Getty Images

Warren Buffett’s latest annual letter looks back on his 50 years at the helm of Berkshire Hathaway, during which time the legendary Oracle of Omaha ha(...)

Warren Buffett, chairman and chief executive officer of Berkshire Hathaway:  his critique of benchmark-huggers remains relevant today. Photograph: Scott Eells/Bloomberg

The arrival of Berkshire Hathaway’s annual letter, the latest of which landed over the weekend, is eagerly anticipated by mutual fund managers for War(...)

Don Keough was among the first recipients of an Irish Presidential Distinguished Service Award honouring members of the Irish diaspora

Irish-American businessman Don Keough, a champion of Ireland who promoted Irish studies in the US and encouraged American corporate investment into Ir(...)

Samsung has been stung by Apple’s new iPhones, ceding global market share after the larger-screen devices captured sales in a segment pioneered by the Galaxy S lineup.  (Photograph: SeongJoon Cho/Bloomberg)

Samsung Electronics is expected to release two new versions of its top-tier Galaxy smartphone next month, including a model with a display covering th(...)