Invesco CurrencyShares Euro Trust 

FXE allows investors to access the euro with holdings of physical euros in a deposit account. This simple structure allows the fund to closely track the euro/US dollar spot exchange rate. Still, it is worth noting that: 1) distributions and share sales of FXE are always taxed as ordinary income, so increase in holding cost should be expected, and 2) the fund's physical deposits of euros are uninsured, so it carries the default risk of its depository, JPMorgan. Additionally, another thing to note on FXE is that it doesn't deliver the overnight lending rate like its benchmark does.