And wehere come from the profit?
If I remember correctly they said something about profit coming from margin trading and some other features that will be implemented later.
this information taken from whitepaper
A high frequency trading server subscription service aimed at institutional investors, hedge funds and investment banks, this service will provide an ultra low latency ticker and an unlimited API rate with the option of high frequency algorithmic trading for an annual fee.
The Cobinhood Prime subscription service - aimed at individual traders who will benefit from higher leverage on margin trading, lower latency ticker, and a higher trading API limit when using the exchange. Traders who commit to the annual fee will also experience an enhanced customer service including dedicated phone support and a designated customer success manager.
A margin trading loan option- Cobinhood exchange users have the option to become margin trading loan providers and earn interest on their deposits. The interest rate will be determined by the demand and supply of margin trading loans and Cobinhood will also collect a portion of the earnings generated via interest payments.
The Cobinhood ICO underwriting service Cobinhood will perform an in-house ICO underwriting service that will involve the vetting and processing of ICOs via their platform whilst collecting a percentage of tokens from each project.