A long-awaited trading link connecting the Shenzhen and Hong Kong stock exchanges will open on December 5, making more than 800 of China’s fastest-growing companies available to foreign investors.

The opening of the Shenzhen-Hong Kong Stock Connect, announced on November 25 by China's and Hong Kong's securities regulators, will allow investors outside China to invest on Shenzhen's $3.3 trillion market via Hong Kong and mainland investors to invest in Hong Kong-listed stocks, including for the first time small-cap companies. The Hong Kong and Shanghai exchanges opened a similar link in late 2014.