RE:RE:NASDAQ or TSX ??Oh...I think you were referring to the TSX or the NASDAQ.
If you are a Canadian citizen, stick with Canadian dollars, and avoid the exchange rate.
If the loonie is at .76 then $4.18 USD = $5.51 CAD as of market close.
If you are American, then you have the advantage of buying more shares with USD on the Nasdaq. Nice.