DINNGO is the first hybrid exchange that implements an in-depth integration with cold wallet service, providing a more secure and efficient user experience.??Comparing the same period from January 2017 to January 2018, the overall single-day trading market value of digital currency rose from USD 121 million to USD 26.7 billion(1). This rapid 220x increase can be explained by a growth in the number of traders. In the beginning, only technology enthusiasts entered the market. Now, however, more people are investing due to a popularization of knowledge. The exchange with the largest market capitalization recently reached a daily market capitalization of USD 2 billion(2). If the transaction fee is calculated at 0.2%, then the daily income amounts to USD 4 million. As the number of traders continues to increase, trading volume growth is expected to maintain a strong momentum.