Are stock price more informative after dual-listing in emerging markets? Evidence from Hong Kong-listed Chinese companies

•Examines the informativeness and liquidity of H-shares after the dual-listing of A-shares•Stock price synchronicity increases after dual-listing.•A-share analyst coverage does not affect price synchronicity, but it does influence liquidity.•QDII affects price synchronicity, liquidity commonality, and stock liquidity.•QFII affects price synchronicity and liquidity commonality.

We study how the information and trading environments of Hong Kong-listed Chinese companies (H-share firms) change once the companies return to the China A-share markets for listing. We examine the stock price synchronicity, liquidity commonality, and stock liquidity after dual-listing and investigate three channels related to possible changes. We find that added A-share analyst coverage influences the stock liquidity, but not the price synchronicity or liquidity commonality. Moreover, Qualified Direct Institutional Investors' trading affects price synchronicity, liquidity commonality, and stock liquidity while Qualified Foreign Institutional Investors' trading affects price synchronicity and liquidity commonality, but not stock liquidity.