Okay your last trade was available at 1.2644. So if you can buy USD at that rate your cost to buy POETF in CAD is $1.54. You can sell PTK at $1.59 and take the CAD spread of $0.05 with no risk.

What I'm saying is the imputed forex translation is approximately 30% from one exchange to the other and actual exchange rates are less so there's a spread there?

Disclaimer: absolutely not a DT or trader of any kind, would not attempt it but seasoned industry players could and would do that if the opportunity presented itself.