Outlier 1y Zscore: -2.59 for VSTOXX4=18.30 #zscore #eur #vol #zscore http May 02 20172017-05-02 Outlier 1y Zscore: -2.59 for VSTOXX4=18.30 #zscore #eur #vol #zscore https://t.co/O787tyYPBS