TOKYO—Global shares were mostly higher on Friday, helped by optimism about technology shares. But Shanghai’s benchmark saw wild swings on worries over the economic outlook and other risks.
The Shanghai Composite index ended 1.5 percent lower at 2,730.15, capping its worst week of losses in five years. Hong Kong’s Hang Seng shed 0.2 percent, to 15,533.56, as gains for technology companies offset declines in property shares.