Does a falling U.S. dollar or rising euro interest you? Do you want to protect your dollar-denominated assets or profit from a rise in European currency? If so, traditionally you would have to trade currency futures, open up a forex account, or purchase the currency itself to profit from changes in currencies.

However, with the advent of currency exchange-traded funds (ETFs) you can now benefit from changes in currencies without all the fuss of futures or forex by simply purchasing ETFs in your brokerage account (IRA and 401(k) accounts included).

In this article, we will look at why currencies rise and fall and check out the different types of currency ETFs. (To go more in depth into currency ETF trading, check out Currency ETFs Simplify Forex Trades.)

Why Currencies Move
Foreign exchange rates refer to the price at which one currency can be exchanged for another. The exchange rate will rise or fall as the value of each currency fluctuates against another.

Factors that can affect the value a currency include economic growth, government debt levels, trade levels, and oil and gold prices among other factors. For example, slowing gross domestic product (GDP), rising government debt and a whopping trade deficit can cause a country's currency to drop against other currencies. Rising oil prices could lead to higher currency levels for countries that are net exporters of oil or have significant reserves, such as Canada.

A more detailed example of a trade deficit would be if a country imports much more than it exports. You end up with too many importers dumping their countries' currencies to buy other countries' currencies to pay for all the goods they want to bring in. Then the value of the importers' country currencies drops because the supply exceeds demand. (To learn more basics for currency pricing, check out Wading Into The Currency Market and our The Forex Market tutorial.)

How ETFs Work
For years, many investors have used ETFs instead of mutual funds to track major equity indexes, such as the S&P 500 and the Lehman Brothers three- to seven-year U.S. Treasury Index.

ETFs have a few advantages over mutual funds, including:

* Easy to trade: They can be bought and sold anytime through any broker, just like a stock.
* Tax efficiency: ETFs typically have lower portfolio turnover and strive to minimize capital gains distributions so that investors are only taxed when they initiate a trade.
* Transparency: ETFs disclose on a daily basis the exact holdings of the funds so you always understand precisely what you own and what you are paying for.
* Flexibility: Anything that you can do with a stock, you can do with an ETF. This includes shorting, holding in margin accounts and placing limit orders.

With currency ETFs, you can invest in foreign currencies just like you do in stocks or any other ETF. You can even buy ETFs with your IRA money.

Currency ETFs
Currency ETFs replicate the movements of the currency in the exchange market by either holding currency cash deposits in the currency being tracked or using futures contracts on the underlying currency.

Either way, these methods should give a highly correlated return to the actual movements of the currency over time. These funds typically have low management fees as there is little management involved in the funds but it is always good to keep an eye on the fees before purchasing.

There are several choices of currency ETFs in the marketplace. You can purchase ETFs that track individual currencies such as the Swiss franc, which is tracked by the CurrencyShares Swiss Franc Trust (PSE:FXF). If you think that the Swiss franc is set to rise against the U.S. dollar, you may want to purchase this ETF, while a short sell on the ETF can be placed if you think it is set to fall.

read more at http://www.investopedia.com/articles/mutualfund/07/currency-etfs.asp