there have been swings in currency exchange rates lately (1YR) but timming them would be like trying to time the market...

the best way to hedge I think is to spread your purchases over time. same as stocks to catch the highs and lows.

This stock seems to fluctuate quite rapidly and its nothing to see a 5% move either way over night...and you dont know when it will move and stay there.

better to buy when you think it is low then to try to gamble and add risk with currency fluctuations. I think this stock is solid enough to let sit and too expensive to play it like a day trader. If you can get it when the currency is to your advantage great but treat that as a bonus

IMO