Key Takeaways
- • Foreign official holders' share of U.S. Treasuries fell to 11.8% in August, down from roughly 40% in the financial crisis era, according to Treasury Department data cited by Axios.
- • Hedge funds now hold an estimated 33.5% of Treasury securities, up from about 10%, per an analysis by Adam Josephson, founder of Sakonnet Research, using a financial-center proxy.
- • The 10-year Treasury yield started the week at 5.23%, spiked above 5.3% after a hot CPI report, and closed near 5.08%, its biggest weekly decline since April 2025 per Deutsche Bank's Jim Reid.
- • Yields fell despite two inflation reports showing rising prices, which analysts attribute to a flight to safety as AI-linked chip stocks wobbled.
- • Josephson warns that more leveraged, price-sensitive buyers could mean sustained volatility and higher long-term yields, raising federal borrowing costs, which reached $1.052 trillion in interest for fiscal 2026.
Summary
Volatility in the U.S. Treasury market rose last week as the yield on the benchmark 10-year note moved in unexpected ways amid hot inflation reports and AI-related market jitters, according to Axios. The 10-year yield opened the week at 5.23%, a level last seen during the run-up to the financial crisis. A hot CPI report on Wednesday briefly pushed the yield above 5.3%, but it fell back to around 5.08% by Friday. Jim Reid of Deutsche Bank noted the move was the biggest weekly decline since April 2025.
The move was counterintuitive. Two inflation reports showed rising prices, which would typically push yields higher. Wall Street analysts instead attributed the decline to a flight to safety as the AI trade wobbled and chip stocks fell for the week, prompting investors to buy less risky Treasuries. Rising demand lifted prices, which move inversely to yields. Axios noted that no one can say with certainty what drove the move in such a large market.
The buyer base has shifted. Official foreign entities, including central banks, finance ministries and sovereign wealth funds, held 11.8% of U.S. Treasury securities in August, according to Treasury Department data released Friday, down from about 40% during the financial crisis era. Adam Josephson, founder of Sakonnet Research, estimates that hedge funds now hold 33.5% of Treasuries, up from roughly 10% over the same period. His estimate relies on a proxy measuring financial centers' share of foreign-held Treasuries in six countries, including the Cayman Islands and Belgium, which also captures other private financial actors, so it is an approximation.
Josephson argues that this shift matters for volatility. Foreign governments are generally less price sensitive and tend to hold Treasuries, while hedge funds trade more actively and use leverage. Meanwhile, the U.S. government continues to issue more debt. "There's ever more supply, and someone has to step in to absorb it and that someone is increasingly price sensitive, highly leveraged buyers," Josephson said. "It's only natural to see higher volatility."
The implications extend beyond trading desks. Josephson expects greater bond market volatility could push long-term yields higher, raising borrowing costs for households on mortgages and auto loans and for the federal government itself. The Treasury Department reported that the federal government paid $1.052 trillion in interest on its debt in fiscal 2026, the third-largest outlay after Social Security ($1.67 trillion) and Medicare ($1.07 trillion).
The move was counterintuitive. Two inflation reports showed rising prices, which would typically push yields higher. Wall Street analysts instead attributed the decline to a flight to safety as the AI trade wobbled and chip stocks fell for the week, prompting investors to buy less risky Treasuries. Rising demand lifted prices, which move inversely to yields. Axios noted that no one can say with certainty what drove the move in such a large market.
The buyer base has shifted. Official foreign entities, including central banks, finance ministries and sovereign wealth funds, held 11.8% of U.S. Treasury securities in August, according to Treasury Department data released Friday, down from about 40% during the financial crisis era. Adam Josephson, founder of Sakonnet Research, estimates that hedge funds now hold 33.5% of Treasuries, up from roughly 10% over the same period. His estimate relies on a proxy measuring financial centers' share of foreign-held Treasuries in six countries, including the Cayman Islands and Belgium, which also captures other private financial actors, so it is an approximation.
Josephson argues that this shift matters for volatility. Foreign governments are generally less price sensitive and tend to hold Treasuries, while hedge funds trade more actively and use leverage. Meanwhile, the U.S. government continues to issue more debt. "There's ever more supply, and someone has to step in to absorb it and that someone is increasingly price sensitive, highly leveraged buyers," Josephson said. "It's only natural to see higher volatility."
The implications extend beyond trading desks. Josephson expects greater bond market volatility could push long-term yields higher, raising borrowing costs for households on mortgages and auto loans and for the federal government itself. The Treasury Department reported that the federal government paid $1.052 trillion in interest on its debt in fiscal 2026, the third-largest outlay after Social Security ($1.67 trillion) and Medicare ($1.07 trillion).
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