Liu Sheng, Chairman and CEO of Zhongji Innolight (centre R) poses after banging the gong at the start of trading with his director Wang Xiaodong (centre L) during the launch of the company's initial public offering (IPO) at the Hong Kong Exchanges and Clearing Limited (HKEX) in Hong Kong on July 30, 2026. Peter Parks/AFP KEY POINTSA global selloff in AI infrastructure stocks pushed Chinese chipmakers lower, with the CSI 300 headed for its biggest monthly decline since January 2016.Measures by policymakers in Beijing to bolster the stock market have failed to stem the losses.The much-anticipated IPOs of two Chinese...