This article explores the potential existence of comovements between the stock prices in Mainland China and Hong Kong. The cointegration test shows that the prices of a substantial number of A shares and H shares have started to cointegrate with each other after the launch of the Closer Economic...

Using intraday high-frequency data, this article investigates the comovement between the A shares and H shares of twenty-one cross-listed Chinese companies. It is found that only a small portion of the cross-listed Chinese companies have a comovement in their A- and H-share prices. The results...