TOKYO -- The Bank of Japan's paper loss on Japanese government bond holdings grew more than 10 times at the end of last year from three months earlier as rises in long-term rates undercut the value of the assets.
Hit to Japan central bank's assets grows to $71bn as yield cap is raised

The BOJ's huge paper loss on its bond holdings will make monetary policy navigation difficult.
TOKYO -- The Bank of Japan's paper loss on Japanese government bond holdings grew more than 10 times at the end of last year from three months earlier as rises in long-term rates undercut the value of the assets.