Hong Kong stock exchange
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Haitong listing being watched closely in Hong Kong

Shares in China's second-largest brokerage, Haitong, have begun trading in Hong Kong.

The securities heavyweight raised nearly $1.7bn earlier this month in an initial public offering - which is the world's biggest so far this year.

It is also good news for the world's largest bourse by market value after a slowdown in share sales early this year.

The BBC's Juliana Liu looks at the significance of the Haitong IPO.