Recently, the Shenzhen Stock Exchange and the Hong Kong Stock Exchange signed a Shenzhen-Hong Kong market cooperation agreement. The Shenzhen Stock Exchange and the Hong Kong Stock Exchange have introduced the Hong Kong stock market into the Shenzhen Stock Exchange's data center through the cooperation between the two stock exchanges, and Shenzhen Securities Communication Co., Ltd. and Shenzhen Securities Information Co., Ltd., the subsidiaries of the Shenzhen Stock Exchange, will respectively provide Hong Kong stock market forwarding and SDK services to mainland users, so as to provide the market with more stable, rich and low-latency Hong Kong stock market services, further promote the interconnection of industry infrastructure, and promote the integrated development of the securities and financial industry in the Greater Bay Area.