SF99,,,,,,,,,,,,,,,I must assume most people have the ability if not actually hold an investment account in CAD and/or in USD currency,,,,,it is no different here in our trading accounts to buy Canadian or US stocks,,we just exchange our CAD into USD and buy only US stocks in it,,,,,,,,,,,,,no exchanging dollars when each buy or disposition is made,,,,I have three accounts that can have USD in them,,,,,,,,,I only use the one which is IB cuz it serves my overall purpose,,,so in my mind RVXCF could have been bought by anyone on either side of the boarder during market hours,,,,,,,in fact I hold RVXCF in my IB account and it was bought in US funds,,,,,,,,,,,,just an observation,,,,,,,,,,,!