Traders on the floor of the New York Stock Exchange: even novice investors can grasp the simple logic underpinning the case for diversification. Photograph: REUTERS/Brendan McDermid

Everyone knows the old cliché about not putting all your eggs in one basket. A diversified portfolio might consist of different asset classes such as (...)

More than just a name change for Google What’s in a name? About $30 billion in the case of Google/Alphabet, judging by last week’s upbeat market react(...)

 Number crunching: mechanical models to predict stock market performance have shown to be consistently better than expert opinion. Photographer: Jin Lee/Bloomberg

Simple computer models invariably trump expert human judgment, whether predicting wine prices, making medical diagnoses, analysing job performa(...)

You heard it here first: A trader  on the floor of the New York Stock Exchange. Photograph: Brendan McDermid/Reuters

Not that long ago, investors looking for their daily fix of market analysis had to make do with broker notes and market summaries in the mainst(...)

Stock picking: Investors often buy into a story, and forget to look for evidence to back up their assumptions.

Most of us are “predictably irrational”, to quote behavioural finance author Dan Ariely, relying all too often on a dodgy sense of intuition an(...)