When the Canadian market opens do we immediately drop down to the US price...it shouldnt work both ways ...should it

Why would anyone in the US market want to sell at a approx 15 % discount  to the closing price of friday, do you think they dont follow the Canadian price,dont you think they like making money...tax loss sellers dont wait till the last days to sell. Fishy if you ask me

Really the price should have balanced out to the new price before the start of trading..in the normal world if a stock only trades on one exchange because of holiday...and the price jumps   etc....the corresponding exchange for that ticker usually actually opens a bit higher the next day.

The main advantage of dual listing is access to additional capital and increased liquidity. A popular way for non-U.S. companies to dual list in the U.S. is by using ADRs, or American Depository Receipts. Considering exchange rates and other complications, stock price should remain the same on both exchanges.