Hong Kong stocks swing to healthy gain at open

The Hang Seng Index climbed 1.08 percent, or 326.76 points, to 30,523.68.

But the benchmark Shanghai Composite Index dipped 0.10 percent, or 3.32 points, to 3,268.35 and the Shenzhen Composite Index, which tracks stocks on China's second exchange, edged down 0.07 percent, or 1.34 points, to 1,836.53.