Tokyo joins the rout at three per cent
The last thirty years of cheap global duration rested on Japanese savers having nowhere better to go; at 3% they do.
Japan's 10-year government bond yield reached 3% on Tuesday, the first time since 1996. Five-year JGBs hit a record 2.26%. In the same session UK 10-year gilts touched their highest since June 2008 and the 30-year gilt rose nine basis points to 5.88%, the highest since March 1998. US 10-year Treasuries closed at 4.79%, the 30-year at 5.27%. Brent went through $92 with just five ships transiting the Strait of Hormuz. The Japanese number is the one to hold on to. For thirty years, Japanese institutions — life insurers, banks, pension funds, the largest pool of foreign savings in the world — could not earn a return at home and so bought foreign bonds, much of it US and European paper, often hedged. A domestic long bond yielding 3% changes that arithmetic without anyone announcing anything. It does not require a policy decision, a headline or a crisis; it requires an actuary to run the numbers again at the next asset-allocation meeting. What we cannot see yet is whether that is actually happening. Repatriation flows show up with a long lag in the balance-of-payments data. What is visible is the coincidence: yields rising together across the US, Germany, the UK and Japan, which Reuters and Bloomberg both attribute to energy-driven inflation and fiscal supply rather than any single country's politics. Big Tech's bond issuance is being named in the same sentence — the AI buildout is now large enough to be a supply factor in the global government bond market, which is a sentence that would have read as nonsense two years ago. Minneapolis Fed president Kashkari says the Treasury market is "functioning as it should". On the evidence — no failed auctions, no dealer seizure — he is right. This is a price problem, not yet a plumbing problem.