Boockvar: The 35-year bond bull market really is over

``I believe there has been a sea change in the behavior of sovereign bonds and something very amiss over the past two months. A lot is being made over what the Federal Reserve will or won't do this week but what investors should be most focused on right now is the longer end of global yield curves. The canary in the mine is now singing and that is the weakness in longer term Japanese Government Bonds and that I believe is the genesis for this uptick now globally in rates.''