Key points
Stellar allows you to create and send digital representations of any type of money.
A 100m investment in this cryptocurrency five years ago would now be worth over 940m.
Fans of Stellar believe it still has plenty of room to grow, but like all cryptocurrencies, it's a risky investment.
Launched in 2014, Stellar (XLM) is an ambitious project designed to make it fast and cheap to transfer any kind of currency. Even though its price isn't anywhere close to its previous highs, it has still paid off for anyone who got in early.