Hong Kong is being the top country by market capitalization in the world. As of 2015, market capitalization in Hong Kong was 1,029.9 % of GDP. The top 5 countries also includes South Africa, Switzerland, Singapore, and the United States of America.
Market capitalization (also known as market value) is the share price times the number of shares outstanding. Listed domestic companies are the domestically incorporated companies listed on the country's stock exchanges at the end of the year. Listed companies does not include investment companies, mutual funds, or other collective investment vehicles.