Japan's four biggest insurers are now sitting on ¥14.5 trillion ($91B) in unrealized bond losses. That's up from under ¥2 trillion just a year ago in March 2024.
These are paper losses for now—they only crystallize if the bonds are sold. But the trend is clear and getting worse every quarter.
The culprit? Rising Japanese bond yields. When yields climb, the value of existing bonds falls. And these insurers are loaded with Japanese government debt.
This is the real constraint on the Bank of Japan. They can't raise rates aggressively without making this hole deeper. It's a slow-motion bind: raise rates to fight inflation and currency weakness, or protect the balance sheets of your largest financial institutions.
Right now, the BOJ is trying to thread the needle. But the longer yields stay elevated, the more stress builds in the system. Watch this space—it's not breaking yet, but the cracks are widening.
These are paper losses for now—they only crystallize if the bonds are sold. But the trend is clear and getting worse every quarter.
The culprit? Rising Japanese bond yields. When yields climb, the value of existing bonds falls. And these insurers are loaded with Japanese government debt.
This is the real constraint on the Bank of Japan. They can't raise rates aggressively without making this hole deeper. It's a slow-motion bind: raise rates to fight inflation and currency weakness, or protect the balance sheets of your largest financial institutions.
Right now, the BOJ is trying to thread the needle. But the longer yields stay elevated, the more stress builds in the system. Watch this space—it's not breaking yet, but the cracks are widening.