Sorry if this seems obvious. I am interested in buying a stock that trades on the ISEQ and the FTSE. If I am buying in Euro I buy on ISEQ? Is there any advantage to purchasing on a different exchange?
From my very limited experience the downside could be liquidity. Some shares trade in extremely low volumes on the ISEQ. One that springs to mind which also trades on the LSE would often have less than one trade per day on the ISEQ. That makes it harder to buy and sell when you want. Obviously on another exchange you could be exposed to currency risk, but that's arguably the case anyway if the company in question generates revenue in the foreign currency.