Trading strategy when 1 market is closedIf a stock, like Canopy, is traded on 2 exchanges and you are concerned of missing out on 'something' due to a closed exchange you can move your shares into the exchange that will be open. If you own CGC and were concerned about Monday, you could have moved your shares into the TSX. TD now lets you do this online as well (recent change - I use to call the broker to do this). This is also a good way to convert US$ to CDN$ (and vice versa) without paying fees or inflated exchange rates.