By Jonathan Davies
Share prices in mainland China fell more than 8% on Friday as investors grew concerned over the amount of new listings.
Guotai Junan Securities made its debut on the Shanghai Composite in China's biggest initial public offering since 2010. The brokerage firm jumped 44% on its first day of trading, raising $4.8 billion (£3bn).
The Composite fell 8.4% in total to 4,146.09, following a 13% drop last week.
It comes as investors confidence was dented by the wave of new listings. Market experts say investors are growing concerned that the number of new listings will soak up liquidity in the market.