Take a look at the stock chart for the PowerShares DB G10 Currency Harvest ETF (NYSE:DBV).

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The PowerShares DB G10 Currency Harvest Fund ( DBV) which takes long positions in the three G10 currencies with the highest yield and short positions in those with the lowest yield.

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Because interest rate differentials are a big factor in currency moves, the DBV shorts the three currencies of G10 countries with the lowest rates and goes long the three with the highest rates.

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