eur.usd is up 2.96% as of now, VGK is priced in USD plus VGK closed several hours later than european markets, yesterday as almost every other market day, which should explain the slight extra discrepancy.
"...is designed to provide exposure to European equities while at the same time neutralizing exposure to fluctuations between the Euro and the U.S. dollar. In this sense, the Index "hedges" against fluctuations in the relative value of the Euro against the U.S. dollar."