Outside Tokyo Stock Exchange: Japanese November-April stock market returns typically exceed May-October by 8.3 percentage points annually.  Photograph: Yoshikazu Tsuno/AFP/Getty Images

The old “sell in May and go away” adage invariably does the rounds at this time of year. Is it a silly market myth or is there something to the notion(...)

Hedge fund manager Stephen Jen is bracing for more pain in emerging markets. (Photograph: Jin Lee/Bloomberg)

Stephen Jen landed in Hong Kong in early January 1997 as Morgan Stanley’s newly minted exchange-rate strategist for Asia. He was soon working aroun(...)

 Jerome Kerviel arrives at a  Paris courthouse  accused of gambling tens of billions of euros  of Societe Generale’s money in outrageous secret trades that humiliated the French banking powerhouse and exposed a need for tighter risk controls. Photograph: Thibault Camus/AP Photo

Sean Quinn’s €3.2 billion punt on Anglo-Irish Bank is unparalleled in Irish investment history, but ignominious blow-ups are nothing new in the financ(...)

Traders work on the floor of the New York Stock Exchange. Photograph: Brendan McDermid/Reuters

It’s easy for active investors to drown in a sea of misinformation. There’s no shortage of confident commentary telling investors and traders what to (...)

Serious Money: John Looby

This is a month of anniversaries. Five years ago this month, Lehman Bros collapsed dramatically. The global credit system froze. Trust between banks, (...)