The benchmark Hang Seng Index jumped 722.75 points to end at 18,130.55 on turnover of HK$71.36 billion ($9.16 billion). Chinese shares closed up 0.91 percent. The Shanghai Composite Index, which covers both A and B shares, was up 21.87 points at 2,415.05 on turnover of 55.3 billion yuan ($8.7 billion).