The IB TWS doesn't let me trade across exchanges. Does that mean I have to call in every time to make a trade? They seem to be the only one that offers foreign markets...
Let's say a company is cross-listed on two exchanges and there's a spread (after currency conversion) between the prices. How does someone profit from this? Is it possible to buy on one exchange and sell on the other? Or does he have to buy the 'cheaper' one and hope the prices converge?
hmm on a similar note:
how does intermarket arbitrage work in stocks? can you buy on an exchange and sell on the other? or can you only buy the "cheaper" one and hope the prices converge?