The Euro is the most heavily traded currency in the world. It is traded directly against the US dollar #EURUSD and against other major and minor currencies.
The major crosses in Forex are the Euro crosses: #EURJPY #EURGBP #EURCHF & EURAUD. On the CME the Euro futures symbol is 6e and traded with weekly through to quarterly expiration.
The Euro represents trade flows with Europe, capital flows, Geopolitical factors and speculative flows.