HONG KONG—Shares of Macau casino operators on Wednesday shed as much as a third of their value, losing about $18 billion, as the government kicked off a regulatory overhaul that could see its officials supervising companies in the world’s largest gambling hub.
With Macau’s lucrative casino licences up for rebidding next year, the plan spooked a Hong Kong market already deep in the red after Beijing’s regulatory crackdown on sectors from technology to education and property that sliced hundreds of billions of dollars off asset values.
