Outlier 1y Zscore: -2.59 for VSTOXX4=18.15 #zscore #eur #vol #zscore http May 04 20172017-05-04 Outlier 1y Zscore: -2.59 for VSTOXX4=18.15 #zscore #eur #vol #zscore https://t.co/pC7nAsopbE