Supposedly they take half of the money you "lend" their trading bot and use it to trade the daily volatility. The other half they hold in the form of their token which pretty much always goes up as people invest and re-invest, not to mention all of the referrals. The money making scheme can go on for quite some time until it is shut down by the cops or they run out of new investors. Right now its seems as if they are at their peak since EVERYONE is talking about them and spamming their referral links.