Hong Kong stocks closed up 210.95 points, or 1.11 percent, at 19,196.45 on Wednesday.
Chinese shares closed mixed on Wednesday with the benchmark Shanghai Composite Index edging up 0.12 percent to 2,625.79 points.
China's stock index futures rose Wednesday with the contract for June, the most actively traded, up 0.21 percent from the previous trading day to end at 2,839.6 points.
More than 140 Chinese companies have been listed at Nasdaq, an increase of nearly 3 times from three years ago, said Robert McCooey, Nasdaq senior vice president, in north China's Inner Mongolia Autonomous Region Tuesday.
Henderson Global Investors has been buying Chinese equities on expectation Europe's debt crisis will prompt China's government to delay further curbs on the country's property industry.
Mainland stocks fell for the first time in three days on speculation the government will step up measures to avert asset bubbles even as Europe's debt crisis threatens to halt the global recovery.
China stocks are factoring in both accelerating inflation and declining growth, a "mispricing" that is poised to "correct soon", Morgan Stanley said.
The approval of the Yangtze River Delta regional plan failed to add spice to related stocks on Tuesday trading, and the CBN Yangtze Index fell 0.74 percent amid an overwhelming downward adjustment on Tuesday.
Hong Kong stocks closed down 682.26 points, or 3.47 percent, at 18,985.50 on Tuesday.
The ChiNext was down Tuesday as only 28 of the 84 stocks at China's start-up board for small and medium-sized enterprises rose at the close.
China's stock index futures closed down Tuesday with the contract for June, the most actively traded, down 3.28 percent from the previous trading day to end at 2,813.2 points.
Chinese shares dropped Tuesday with property developers and banks leading the slump.