Recently, as a concept such as IEO (initial exchange offering) appeared, the so-called Exchange tokens have appeared. For these tokens, you can participate in financing Blockchain projects through a cryptocurrency exchange. Depending on demand and the general situation on the market, these tokens can grow in price and vice versa. Since these tokens are no longer applicable anywhere, from their founders began to appear proposals to keep these tokens on the balance of users’ wallets. The remuneration for this varies in the range of 10-30% per year. From a part, it is similar to POS mining, only virtual. And it is not known what will happen to the price of the token in a long time.