Why is a global company say like HSBC worth less because it sounds British? Why would an entire index be -10% overnight from Brexit? Just saying...even 9/11 didn't move the US market that much.
The EUR/USD at 1.11 doesn't make sense. If England leaves EU, probably the rest of the EU system is in question.
If the actual vote is to leave, geesus, I don't know - I haven't seen a locked limit down in a while.