Entre las cosas que me he encontrado del broker:

https://en.wikipedia.org/wiki/IC_Markets

In 2015, IC Markets announced that it would cover negative balances following the Swiss Franc flash crash which occurred on January 15, 2015.[3]

In September 2017, IC Markets announced record trading volumes for the month of August totalling 343 billion USD.[7]

Vamos que asumieron las perdidas del franco suizo y los elevados volúmenes que manejan.