Core Viewpoint - The article discusses the deepening of the "H+A" listing channel between Hong Kong and mainland China, highlighting the potential for more companies from the Guangdong-Hong Kong-Macao Greater Bay Area to achieve dual listings in both markets as a result of recent policy changes [2][10]. Group 1: Policy Changes and Market Impact - The recent policy document released on June 10 aims to enhance the financial, technological, and data integration to support high-quality economic development, allowing companies listed on the Hong Kong Stock Exchange to also list on the Shenzhen Stock Exchange [2][5]. - The new regulations are expected to strengthen the synergy between the Shenzhen and Hong Kong exchanges, promoting a more integrated capital market and facilitating the dual listing of quality enterprises from the Greater Bay Area [7][10]. Group 2: Potential Companies for Dual Listing - Currently, there are 249 companies from the Greater Bay Area listed on the Hong Kong Stock Exchange, with only 27 achieving dual listings. The total number of companies in the region is 1,593, with a significant portion in new economy sectors [4][5]. - Among the 1,593 companies, 436 are expected to meet the financial standards for the Shenzhen Stock Exchange's main board, while 910 could qualify for the growth enterprise market [5]. Group 3: Historical Performance of H+A Listings - Historical data shows that companies returning from Hong Kong to A-shares have generally performed well, with average price increases of 7.0% after one week, 18.6% after one month, and 19.9% after three months [9]. - The performance of these companies in the A-share market has outperformed both the A-share market and their Hong Kong counterparts, indicating strong investor interest and potential for future listings [9]. Group 4: Investment Opportunities - The article suggests that the new policies will create investment opportunities as more companies from the Greater Bay Area are expected to list on the A-share market, enhancing the quality and diversity of investment options available to domestic investors [10]. - The collaboration between the Hong Kong and Shenzhen exchanges is anticipated to foster a "Hong Kong incubation + mainland acceleration" model, benefiting both markets and attracting long-term capital [8][10].