Not sure how they do it but so far, so good. I am onboard with Bitconnect for the last couple of months and all interests have been paid daily, in a region of 0,50 up to 2 % daily. Initial capital should be returned any time soon ! Meanwhile, I have reinvested my interest on altcoins and mining contracts. The platform and website are user friendly and very complete.
Market Cap has crossed 1 Bln $ in October 2017 and lots of people got interested.
Should you have an interest to join Bitconnect, please be so kind to use