The cheap-money era that propped up global asset prices for more than a decade is ending, and the September FOMC meeting is the pivot.
Federal Reserve Chairman Kevin Warsh's hawkish Jackson Hole speech has flipped market pricing toward a September rate hike, deepening a global bond selloff that pushed the Bloomberg Global Government Bond Index yield to 3.72 percent — the highest since mid-2008 — for a fourth straight session. Rate-swap markets now price a 65 percent chance of a 25-basis-point increase at the Sept. 16 meeting, nearly double the 34 percent before Warsh spoke, after he vowed to return inflation to the Fed's 2 percent target and called interest rates the central bank's "predominant tool."
"Warsh has raised the bar for standing pat by arguing that the Fed should focus on trends rather than isolated data points and that underlying inflation hasn't meaningfully improved," said Aditya Bhave, economist at Bank of America. "Absent a material downside surprise, the onus is now on Warsh to deliver a September hike."
The repricing rippled across the world's largest bond markets. The U.S. 10-year Treasury yield climbed to 4.78 percent, the highest since January 2025, while the 30-year reached 5.27 percent — its 55th trading day above 5 percent since January, the most since 2006. Japan's 10-year JGB yield touched 3 percent for the first time in three decades, and Australia's equivalent hit its highest since 2011. The moves came as Brent crude rose 1.2 percent to about $91.55 a barrel on U.S.-Iran conflict fears over the Strait of Hormuz, reinforcing inflation expectations.
The stakes extend beyond bonds. A 10-year yield at 4.75 percent is a level where investors "really start to pay attention," said Robert Pavlik, senior portfolio manager at Dakota Wealth Management, with strategists warning that a break above 5 percent could trigger an equity correction. For households, the 30-year Treasury underpins mortgage pricing, and MetLife Investment Management's chief market strategist Drew Matus said yields above the 3.5-to-4.5 percent "comfort zone" will force families to save more, pressuring consumption.
The structural drivers behind the selloff
The selloff is not merely an inflation hedge. Rising real yields point to a fundamental reassessment of the U.S. long-run equilibrium rate, driven by a fiscal backdrop that shows no sign of easing. The national debt surpassed $40 trillion in August, and about $200 billion of high-grade corporate bond issuance is expected in September as technology companies fund AI infrastructure, competing with Treasuries for the same capital. Nominal GDP growth has accelerated to about 6.6 percent year over year, against 2.1 percent real growth, with the GDP deflator up 4.4 percent — a spread that historically leaves room for yields to climb further.
The transmission is global. Japan's central bank ended the last negative-rate policy in 2024, and the 10-year JGB yield has doubled from about 1.5 percent a year ago to 3 percent. Treasury Secretary Scott Bessent told CNBC he has "information the market doesn't have" and expects Japan to act to strengthen the yen, the clearest signal yet from Washington on Tokyo's policy. International investors now account for about two-thirds of monthly JGB cash trading, up from 12 percent in 2009, drawing capital that previously flowed into U.S. Treasuries back to Japan.
A synchronized tightening cycle
The Fed is not alone. Swap markets fully price a European Central Bank hike at its Sept. 10 meeting, put a 98 percent probability on a Reserve Bank of New Zealand move this week, and see a 92 percent chance the Bank of Japan raises rates Sept. 18, with October fully priced. Australia's central bank faces a 54 percent probability of a fourth hike after stronger-than-expected inflation. The last time major central banks tightened in such lockstep was the mid-2000s, when the 30-year Treasury last spent this long above 5 percent.
The September decision hinges on data due before the meeting. The Fed held its benchmark rate at 3.5 to 3.75 percent in July, with three of 12 FOMC voters dissenting in favor of a hike. July PCE inflation ran at 3.7 percent headline and 3.3 percent core, and Warsh said the readings "do not tell me that underlying trends have meaningfully improved." Friday's August jobs report, expected to show 55,000 new payrolls with unemployment steady at 4.1 percent, and the following week's CPI and PPI releases will determine whether the Fed follows through. If the Cleveland Fed's nowcasts prove accurate — core PCE easing to a 2.7 percent three-month annualized rate — futures may be overpricing the move, and the improving trend could keep the Fed on hold.
This article is for informational purposes only and does not constitute investment advice.