Is there an ETF that tracks the USD?

I'm looking for a stock or ETF that tracks the USD, or is at least strongly correlated to it. Gold would be an example. Any others?

 

UUP - PowerShares DB US Dollar Index Bullish (AMEX)

 

Thanks for that. I wonder if there are others.

As I type this the USD is puking.

 

UDN for bears

 

$ with a big reversal overnight and is now up against all currencies except the yen and the swiss.

 

FXE is EURUSD, there are a bunch of Fx ETF's, if you search.