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What should I consider when factoring fluctuating exchange rates into risk/return of overseas stock trading?
Which of these two factors is likely to be more significant?  There is long term trend that puts one favourable with other. .... I realise that I could just as easily have lost 5% on the LSE and made 5% back on the currency, leaving me with my original investment minus various fees; or to have lost 5% on both. Yes that is true. Either of the 3 scenarios are possible. Those issues aside, am I looking at this in remotely the right way?  Yes. You are looking at it the right way. Generally one invests in Foreign markets for;