David Einhorn

Shares up 11% after Musk tweeted he was considering buyout but have since dipped

Computers increasingly dominate today’s investment world, but they can only go so far

Stocktake: with value stocks in a slump, the tortoise and hare approach may lose its appeal

High prices are sustained as speculators believe they can sell on to ‘greater fool’

Performance does not persist, as shown by the latest scorecard from S&P Dow Jones Indices

The car maker has a market value above General Motors and Ford

Car giant’s shareholders close off challenge from Greenlight Capital to reshape the board

Irish-headquartered pharma group accused of ‘murky alliance’ that boosts the price of drug acquired in Questcor deal

Stocktake: Don’t sell in May and go away – study says investors should sit tight

Bank of Ireland, Smurfit Kappa and Glanbia among strongest performers on Dublin’s Iseq

The relative minnow has more than tripled in value since 2007

Microblogging provider remains a no-no among both value and momentum investors

Average rise for firms was 3.26%, according to survey

Are short sellers immoral parasites or clever analysts who help to expose ‘frauds, fads and failures’?

Despite some crazed internet valuations, 2014 is not a rerun of 1999

Author Michael Lewis’s book has rattled cages in the US financial world and prompted an investigation into high-speed trading