Quote Originally Posted by Snoopy View Post

P.S. Another potential advantage is the timing window. You can buy/sell an Australian dual listed share on the NZX before the ASX opens. Likewise you can buy sell an NZ dual listed share on the ASX after the NZ market has closed.
Yes sometime the NZ market doesnt full reflect the news announcements because its thin or whatever and you can pick up Aussie shares cheap on the NZ exchange. But this is of course just another form of speculation.

But I also tend to buy Aussie if we ever approach parity and then sell it back at 0.9 ish... but then I've traded currencies for yonks ... so its what I do.