EUROPEAN bond markets opened September in the worst shape in over a decade. Bund futures fell to 15-year lows in Asian trading Tuesday, while French OAT futures dropped to their lowest level since 2012. French and German 10-year yields both hit 15-year highs Monday, driven by mounting fiscal pressure in both countries.
The yield surge is not confined to Europe. The 10-year U.S. Treasury yield reached a 20-month high during Tokyo trading, and Japan's 10-year government bond yield touched three percent for the first time since 1996. Since late June, nominal 10-year Treasury yields have risen approximately 36 basis points against only nine basis points in breakeven inflation expectations, which measure the market's inflation outlook embedded in bond prices.
That 27-basis-point gap between nominal yield moves and inflation expectations points to rising term premium and higher real yields. Term premium is the extra return investors demand for holding longer-duration bonds rather than rolling short-term debt. By the New York Federal Reserve's own measure, the 10-year Treasury term premium more than tripled from roughly 26 basis points in January 2025 to above 80 basis points by June. The subsequent 36-basis-point climb in nominals since June suggests that premium has continued to widen through summer.
Rising real yields have sparked debate among market participants. Some read the move as a signal of better growth expectations rather than a pure flight from risk, arguing this limits damage to equities. The term premium expansion tells a different story: investors are demanding more compensation to own long-dated government debt, a development that raises borrowing costs for sovereigns already under fiscal strain.
Eurozone CPI data due Tuesday is widely expected to lock in market pricing for a European Central Bank rate hike at next week's policy meeting. A 25-basis-point increase would compound duration pain. With bund and OAT futures already at record lows, another policy move higher would push mark-to-market losses on sovereign bond portfolios dee. Energy markets are adding separate pressure on Europe's fiscal and inflation outlook. Benchmark European gas prices stood at 3.5-year highs as of Tuesday, driven in part by supply disruption from Qatar linked to the Iran conflict. The disruption has deepened backwardation in the gas market—a condition where near-term prices sit above prices for future delivery months, including winter contracts.
Backwardation destroys the economic logic of buying gas now and storing it for winter. When prompt prices exceed forward prices, a buyer who stockpiles gas locks in a guaranteed loss relative to purchasing in the forward market later. The result is that Europe enters autumn with storage incentives broken, holding a bet that this summer's heat does not give way to a severe winter cold snap.
President Donald Trump threatened additional strikes against Iran following the first military exchange between the two countries in roughly a month. The geopolitical tension keeps a risk premium in energy markets and complicates the ECB's task: higher gas prices feed directly into headline inflation, which in turn makes it harder for the central bank to pause rate increases even as European growth slows.
Equity markets across Asia reflected the bond and energy stress. Stocks fell in Seoul, Tokyo, Sydney and Hong Kong Tuesday. The Russell 2000, which carries heavier exposure to domestic credit conditions and floating-rate debt, fell 0.5 percent—consistent with a market repricing the cost of capital upward.
U.S. equity indexes are also lower on the day, though modestly. The S&P 500 is down 0.3 percent, the Dow Jones Industrial Average off 0.7 percent, and the Nasdaq down 0.1 percent.
Three data releases could shift the picture before the U.S. session closes. Eurozone CPI prints first and will set the tone for ECB rate expectations. U.S. JOLTS job openings data follows and will test whether labor demand is softening enough to give the Federal Reserve room to hold rates. ISM Manufacturing rounds out the session; a weak reading would add to evidence that the industrial economy is contracting under the weight of higher borrowing costs.
The setup heading into autumn is straightforward and uncomfortable: European sovereigns face a rate hike with gas prices near multi-year highs and bond markets already at generational lows; U.S. term premium has tripled in 18 months; and Japan's 10-year yield is at its highest in three decades. Duration risk—the sensitivity of bond portfolios to rising rates—is the defining variable of this rate cycle, and every major developed-market bond market is now pricing it in simultaneously.
