If Peter Chrisp has got the weight of this country's export sector sitting on his shoulders, he doesn't show it.

The Financial Markets Authority is looking into the NZX's disclosures around its disputed purchase of Australia's Clear grain exchange.

Investors' optimism about fresh stimulus by the Federal Reserve was dampened overnight as Ben Bernanke indicated the central bank wasn't planning any immediate action.

World share markets rose overnight after Federal Reserve chairman Ben Bernanke said the Fed was ready to help the US economy if there were further signs of weakness.

News Corp's loss of $7b in market value over four trading days shows investor concerns that the phone hacking probe could have a broader impact on the company.

Fear that the debt crisis in Europe is spreading has sent investors running for the exits, hammering both global equities and the euro.