The Hang Seng Index jumped 2.3 per cent to 19,572.45 at local noon trading break, the highest level since May 20. The Tech Index surged 4.2 per cent, while the Shanghai Composite Index added 0.6 per cent to hit a two-month high.
E-commerce giant Alibaba Group Holding advanced 5.3 per cent to HK$96.10, rival JD.com surged 6.5 per cent to HK$134 and search-engine operator Baidu rallied 6 per cent to HK$94.05. Sportswear maker Li Ning jumped 9.5 per cent to HK$16.90, and hotpot chain Haidilao gained 11 per cent to HK$16.16.
The current rally might still have room to run, as exceptionally low investor expectations, undemanding valuations and light positioning all provide a contrarian buy signal, Bank of America said in a report to clients.