The World's Patient Lender Can Stay Home Now

The thirty year Japanese government bond yielded 4.05 percent on the seventeenth of September. The twenty year yielded 3.82 percent and the ten year touched three percent at the start of the month, a level last seen in 1996. The Bank of Japan raised its policy rate to around 1.25 percent on the eighteenth, the third increase in nine months and the highest setting since 1995.

For a country whose long bonds paid almost nothing for a generation, the size of the move matters more than the level. When the Bank abandoned negative rates and yield curve control in March 2024, the thirty year yielded about 1.78 percent. It has risen roughly 227 basis points since, without a round trip. The curve now inverts beyond twenty five years, which is the market's way of saying it will finance the next quarter century but is unsure about the one after that.

The Historical Echo

Japan has had one previous episode of the long end repricing violently without a change in the policy rate, and the Bank of Japan's own research describes it precisely.

The ten year yield bottomed at 0.44 percent on the twelfth of June 2003 and reached 1.67 percent by the third of September, roughly 123 basis points and close to a quadrupling in eighty three days. A ten year auction went undersubscribed that summer and bid to ask spreads widened sharply. The cause was not the central bank. It was domestic banks running value at risk limits, cutting duration into a market where the same small group of domestic institutions was effectively the whole bid. Each seller widened the volatility that forced the next seller out.

Two things distinguish 2003 from now. The first is that it was a round trip inside a secular bull market, over within months. The second and more important one is that in 2003 the Bank was a buyer standing behind the market. Today it is a seller by schedule. Monthly purchases have been cut to about 2.5 trillion yen this quarter and will fall to roughly 2.1 trillion by early 2027, with holdings projected about seventeen percent below their mid 2024 level by then. It still owns something over half of all outstanding government bonds, which is both the reason the market has held together and the reason the withdrawal has to be gradual.

The auction tape shows both the strain and the recovery. A twenty year sale in May last year cleared with a tail of 1.14 yen, the widest since 1987. A twenty year sale in August covered nearly four times over. The market is not broken. It is repricing in public.

Where Patient Capital Is Positioning

The part of this that reaches beyond Japan is the identity of the buyer who is no longer buying elsewhere.

Japanese life insurers and pension funds have been the archetypal patient lender to the rest of the world for three decades, recycling a current account surplus into foreign bonds because domestic paper paid nothing. That trade has stopped making sense. Of the ten major life insurers, only four planned to add domestic bond exposure this financial year and none planned to add unhedged foreign bonds. They have been net sellers of foreign bonds for six consecutive financial years, and in May they sold super long domestic bonds too, which suggests they are waiting for a better level rather than rushing home.

The numbers on the American side are consistent. Japan remains the largest foreign holder of United States Treasuries at 1,104 billion dollars in July, and that is down from 1,239 billion in February, a fall of about eleven percent in five months. The American thirty year yields 5.29 percent, the British 5.75, the German 3.85. Japan's twenty year now sits at the level of the German thirty.

The practical consequence is not a forecast about any of these markets. It is that the discount rate applied to every long lived asset on earth is set at the long end of the sovereign curves, and the institution that spent thirty years pushing that rate down has a reason to stop. Assets whose value rests on refinancing at a low rate are exposed to this. Assets whose value rests on being a physical thing that produces something, and that carry no maturity date at all, are not. Land does not roll over. Neither does an ounce of metal in storage. That is a dull advantage in ordinary years and the only one that matters in the years when the long end moves.

The Capital Memo