NYSE traders: Critics say cap-weighted indices run the risk of significant declines if a handful of constituent stocks tumble and that tracker funds will end up being too invested in overpriced stocks, and too little in underpriced stocks. Photograph: Brendan McDermid/Reuters

Traditionally, investors had two choices – track stock markets by buying low-cost index funds, or opt for more expensive active funds that try to beat(...)

Traders on the floor of the New York Stock Exchange look forward to 2015. PHOTOGRAPH: CARLO ALLEGRI/REUTERS

The dawning of a new year invariably prompts financial soul-searching, most of us resolve to learn from the mistakes of past years and finally get our(...)

As 2014 ends, the buy-the-dip trade continues to work its magic.Stocks soared last week after the Federal Reserve said it would be “patient” in decidi(...)

Winner’s curse: Apple shareholders suffered a torrid time shortly after the company smashed the market capitalisation record in August 2012, descending from a high of $705 (€520) per share to a low of $385 (€284) just seven months later. Photograph: David Paul Morris/Bloomberg

All over the world, the “top dogs” in stock sectors go on to suffer years of underperformance, according to prominent money manager Rob Arnott. Just a(...)

Picking stocks: investors have reason to be grateful to devotees of the efficient market hypothesis and behavioural finance.  photograph: andrew burton/getty images

Are markets efficient, or are investor actions governed by animal instincts? Is it pointless trying to beat the market, or are stocks prone to systema(...)