KEY POINTS
  • The Bank of Japan caught markets off guard by tweaking its yield curve control policy to allow the yield on the 10-year Japanese government bond to move 50 basis points either side of its 0% target.
  • In its policy statement, the BOJ said the move is intended to "improve market functioning and encourage a smoother formation of the entire yield curve, while maintaining accommodative financial conditions."

Global markets were jolted overnight after the Bank of Japan unexpectedly widened its target range for 10-year Japanese government bond yields, sparking a sell-off in bonds and stocks around the world.

The central bank caught markets off guard by tweaking its yield curve control (YCC) policy to allow the yield on the 10-year Japanese government bond (JGB) to move 50 basis points either side of its 0% target, up from 25 basis points previously, in a move aimed at cushioning the effects of protracted monetary stimulus measures.