Premium for mainland China shares erodes – or flips – as capital flows to Hong Kong

A long-standing pricing gap between the mainland China-listed and Hong Kong shares of dual-listed companies has narrowed – and in some cases reversed – as global investors re-rate China’s technology companies. The Hang Seng AH Premium Index, a widely watched gauge of the valuation gap between dual-listed companies’ A shares trading on mainland exchanges and their H shares in Hong Kong, has remained below 120 in recent sessions, down sharply from a high of 157.89 in February 2024. The shift has...