I'm in a similar situation as the original poster, but with less money. I have been thinking about passive investment, but I live in Switzerland, so I wouldn't want to have all my money in Dollars or even Euros. So if I want passive investment, I first have to take the active decision of what part of my money I invest in which currency. It's probably not a good idea to have everything in a swiss franc index, this would mean a big exposure to very few big swiss companies.

Do you have any idea if there is a 'passive' way to choose between currencies?