As the US Federal Reserve finally turns off the money printing presses, veteran investor Bill Gross has warned the global economy cannot survive without the support of quantitative easing.
The Bank of International Settlements (BIS) has warned of a potentially 'violent' market crash as financial markets are dangerously stretched.
Shares on Wall Street have recorded the worst three-day streak since 2011 after another sharp move lower overnight, with investors continuing to fret over the end of the US Federal Reserve's bond buying programme.
Yahoo is close to investing millions of dollars in mobile messaging service Snapchat, which may value the start-up at about $10bn (£6.2bn), according to reports.
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HSBC has vowed to fight a $250m (£151m) lawsuit brought against it over its alleged involvement in the Keydata scandal.