Outlier 1y Zscore: -2.68 for VSTOXX4=18.30 #zscore #eur #vol #zscore http Apr 28 20172017-04-28 Outlier 1y Zscore: -2.68 for VSTOXX4=18.30 #zscore #eur #vol #zscore https://t.co/CpBVeJ03UF