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The hidden cost of currency conversions

When you’re trading international stocks, it’s not only the charge for buying the shares that matter. The charge for buying the foreign currency the shares are quoted in can also be very significant.

At some stock brokers, this FX commission can be higher than the commission on stocks. And many brokers try to make their rates look better by hiding it deep in the small print or even not mentioning it at all.

This is particularly a problem in the UK, although investors everywhere should watch out for it. For example, take TD Direct Investing (formerly TD Waterhouse UK). It charges a standard rate of £12.50 per trade for international stocks. On an investment of £1,000, that’s a commission of 1.25%. But TD Direct will also charge up to 2% over the interbank rate for converting your currency – almost twice the headline stock commission.

To be fair to TD Direct, it displays its currency charges more clearly than many rivals. But while they may be transparent, they’re certainly not trivial. Charges like that will mount up pretty quickly, especially if you’re an active trader. So minimising your FX commissions is an important part of keeping your costs down and improving returns.