I am spanish, and I use DeGiro as my broker, so sometimes I cannot access some stocks from NYSE but I can get them from TradeGate or Frankfurt. I am also into Uranium Mining companies, some of them are canadian or australian, but I buy their american 'version' so my question is… How does It work? Do they mirror each other? If one company from Australia gets a +4% one session, how safe IS to asume It Will be similar in the american exchange 9 hours later?
