The Hang Seng Index fell 1.3 per cent to 25,555.02 as of 10.14am local time, stretching the loss to 2.8 per cent for the week. The Hang Seng Tech Index lost 2.3 per cent.
On the mainland, the CSI 300 Index slid 1.3 per cent and the Shanghai Composite Index retreated 0.9 per cent.
BYD Electronics International slumped 5.2 per cent to HK$38.94 and Chinese chipmaker Semiconductor Manufacturing International Corp sank 4.3 per cent to HK$70.55. Alibaba Group Holding slid 2.7 per cent to HK$156.90 and Tencent Holdings lost 1.1 per cent to HK$613.50.
The week-long turmoil on Hong Kong stocks underscored the shift of sentiment after the Hang Seng Index gained more than 30 per cent this year to make it among the best-performing benchmarks globally.
Investors are now turning their attention to the third-quarter data on China’s economic growth as well as other key September figures on retail sales and industrial production due on Monday. The world’s second-largest economy probably expanded by 4.7 per cent last quarter, the slowest pace in a year, according to the estimate of the economists polled by Bloomberg.