RE:Do we now have to chose between nasdaq and tsx The dual listingwill create two places where markets for the shares are made and where traders and investors buy and sell
That means there will be two different prices, HOWEVER, that will create an opportunity for arbitrage, where shares will be bought for a low price on one exchange and sold on the other for a profit....until, the gap is eliminated
It also creates opportunities when one market is closed for a holiday the other market does not recognize
Regardless of theory and hypotheses, there is going to be on going minor differences and lags