At that time, these "unicorns" had been listed in overseas markets such as the United States, and domestic investors could not invest. Therefore, these companies have issued a kind of depositary receipts called CDR(ChineseDepositoryReceipt). The function of this financial derivative is to let foreign investors participate in a country's securities market reasonably and legally (most of the time it represents stocks, but sometimes it also represents bonds). In this regard, investors in China can also share the "unicorn" bonus through fund companies that invest in this product.