Euro index once again was "the best of the worst" kind of performer in the last 5 trading days. It outperformed only three, was surpassed by five currency indices and ended the period of analysis below the base (opening) value. There were few factors which had the biggest impact on that. First, substantially worse than expected ZEW data on Tuesday. The gauge slid below the value of 50 for the first time since October, 2013. This caused Euro index to loose 0.22%. Second, arguably the most important, factor was yesterday's EU Economic Summit which highlighted the tension between the EU and Russia due to events in Crimea.