The first thing I went looking for, was a way to set this to EUR, because I am european. There is no such setting.
A small word of unwanted advice for anyone developing anything related to crypto-currency tickers: don't add "multi currency" as an afterthought. E.g. coinmarketcap's API, or the CoinCap interface have hacked this in. It's ugly, inconsistent and feels amateurish. Nothing wrong with adding "mutli-currency" in a later phase, but this is certainly not a "YANGI" thing: There are far, far more people out there, who will want to use your product, but who don't use USD than there are that use USD.
I tried it, but somehow it does not store my setting. It looses it after every state change (page navigation).
This is on Firefox, latest stable. I cannot see any session, cookie or local-storage that would've stored my setting, nor do I see any network activity that would've stored the setting in my account.
A small word of unwanted advice for anyone developing anything related to crypto-currency tickers: don't add "multi currency" as an afterthought. E.g. coinmarketcap's API, or the CoinCap interface have hacked this in. It's ugly, inconsistent and feels amateurish. Nothing wrong with adding "mutli-currency" in a later phase, but this is certainly not a "YANGI" thing: There are far, far more people out there, who will want to use your product, but who don't use USD than there are that use USD.