Global stocks mixed after torrid week

European and US markets stumbled Friday at the end of a rocky week plagued by worries over China's slowdown, after Asia stocks rallied on the strength of US economy. Global equities were hammered on Black Monday as risk-averse investors dumped shares on spreading panic that the flagging Chinese economy could spark a new world recession. "After a hectic rollercoaster of a week across financial markets... the moves by the PBoC and the better-than-expected US GDP have revived risk-taking to a degre