Currency ETFs give the individual investor exposure to an asset class that for a long time was the exclusive province of banks and institutions. There are about 39 currency ETFs (including leveraged and inverse ETFs) that offer exposure to a dozen individual currencies. Unfortunately, most have low volume and are therefore not suitable investment or trading vehicles.
The following currency ETFs have sufficient liquidity for swing trading. Daytraders, however, may be better served trading currency futures. Unless you have extensive experience in the currency markets, I don’t recommend trading spot Forex (pairs) due to Forex being an unregulated marketplace.
(UUP) PowerShares DB US Dollar Index Bullish Fund (very liquid)
(UDN) PowerShares DB US Dollar Bearish Fund (thin)
(FXE) CurrencyShares Euro Trust (very liquid)
(EUO) ProShares UltraShort Euro (very liquid)
(FXA) CurrencyShares Australian Dollar Trust (liquid)
(CROC) ProShares UltraShort Australian Dollar (thin)
(BZF) WisdomTree Brazilian Real Fund (thin)
(FXB) CurrencyShares British Pound Sterling Trust (thin)
(FXC) CurrencyShares Canadian Dollar Trust (modest volume)
(CEW) WisdomTree Emerging Currency Fund (modest volume)
(FXF) CurrencyShares Swiss Franc Trust (thin)
(YCS) ProShares UltraShort Yen (liquid)
(FXY) CurrencyShares Japanese Yen Trust (liquid)
(CYB) WisdomTree Chinese Yuan Fund (thin)