Ero Copper Corp. Replay the stock market charts of ERO day by day back to 2003. Open long and short positions without spending any money. The investment seeks to provide investors with exposure to the euro/U.S. dollar exchange rate (the "EUR/USD exchange rate" or the "index"). The EUR/USD exchange rate is a foreign exchange spot rate that measures the relative values of two currencies, the euro and the U.S. dollar. When the euro appreciates relative to the U.S. dollar, the EUR/USD exchange rate (and the value of the ETNs) increases; when the euro depreciates relative to the U.S. dollar, the EUR/USD exchange rate (and the value of the ETNs) decreases.