World Shares Extend Gains in Thin Pre-Christmas Trading

World Shares Extend Gains in Thin Pre-Christmas Trading
People walk past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange, on Dec. 23, 2021. Vincent Yu/AP Photo
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BANGKOK—World shares were higher Thursday after stocks advanced on Wall Street, lifted by encouraging reports about the potential impact of the omicron variant of coronavirus and stronger U.S. economic data.

Major indexes are on track for a Christmas week gains, with trading thinning as the holidays approach. Many world markets will be closed Friday in observance of Christmas.