That's strange. If that's the case wouldn't you expect XIV to be down and TVIX to be up over the last five weeks? http://stockcharts.com/c-sc/sc?s=XIV&p=W&b=9&g=0&i=t32620745886&r=1426616356320 http://stockcharts.com/c-sc/sc?s=TVIX&p=W&b=9&g=0&i=t00692651336&r=1426615715662