Founder’s blog explains how this works:
Forbes article really comprehensive too:
Had no complaints using Abra to date (its a great cryptocurrency app) and I intend to use to this fractional share exposure feature as a stop gap up until real fractional shares are offered by Freetrade.
Sign up to the app:
Check out ABRA and easily invest in 28 cryptocurrencies or BIT10, an index of the top cryptos. Use my link to sign up and get $25 in free bitcoin after your first Bank/Amex deposit, or 1.5% cash back when you exchange cryptos (T&C apply):