The new buyer of America's debt is funding it month to month
Who holds US government bonds, and with what money, decides how those bonds behave when the market is under strain. The holders are shifting toward hands that have borrowed short-term and are betting with borrowed money.
Chinese commercial banks have spent the past few months buying US government bonds, paying for them by raising the interest they offer on dollar deposits, according to people who spoke to Reuters. Nobody had reported it before. It matters because the buyers America relied on for years are leaving, and their replacement is holding a ten-year IOU with money that can walk out the door in months. The Big Five state lenders have capped what they pay on dollar deposits at 2.8% since 2023, which is the ordinary state of affairs. What is not ordinary is the rest: customers with more than $50,000 have been able to negotiate above 3% since June, and some smaller and foreign banks have offered close to 4% since August, a few of them advertising on social media to find the money (Business Times). The arithmetic is simple. The interest rate the US government pays to borrow for ten years has risen more than 0.3 percentage points since June (to 4.76%); the rate China's government pays to borrow for ten years has fallen to its lowest in over a year; and the gap between them briefly reached its widest since 2006 on Wednesday (about 3.13 percentage points, per Nikkei). A bank that gathers dollars at 3.5% and holds US bonds paying 4.75% pockets the difference without ever touching the yuan. That matters, because the sources say the banks are reluctant to change currency themselves while regulators are watching. What the story does not say is how much. Reuters could not establish the amount, or whether it changes China's overall holdings of American debt. The mechanism is what interests us. The buyers the US bond market has traditionally depended on are leaving or shrinking. Japanese investors have sold a net ¥3tn ($18.7bn) of foreign bonds this year through August 22, the biggest outflow at this point in a year since 2022, because Japanese government bonds now paying above 3% are pulling money home (Reuters analysis via Astro Awani). Norway's sovereign fund is proposing to cut roughly $80bn. Their replacement, on this evidence, is banks borrowing short from depositors who can renegotiate or leave, to own a bond that pays a fixed rate for ten years. Anyone who watched the brokerage Schwab in 2023 knows what happens to that trade when the cost of the deposits moves. For the meter, none of this is a spark. A buyer showing up is better than no buyer, and the money is real. But the holder stepping in is smaller, less patient and more reliant on borrowed money than the one steppin