New highs in Bund yields remain primarily driven by policy pricing, with value shifting toward the curve belly and forward steepening

Overview

The report explains why German government bond yields have reached new highs and assesses the outlook through the Middle East conflict, euro-area data, ECB communications, government bond supply, spillovers from US markets, and investor demand. Its central conclusion is that policy expectations continue to dominate yields, the market is pricing forward ECB rates too high, and the belly of the curve and forward steepening offer greater value, while the long end remains pressured by supply and seasonality.

Core views

The report argues that although bear steepening has occurred over recent weeks, the primary reason German government bond yields have reached new highs remains monetary policy expectations rather than a complete loss of control over the fiscal outlook. The firm believes the market is pricing an overly aggressive normalization of ECB policy and persistently high rates over the coming years, particularly through excessively high forward rates and insufficient pricing of rate cuts in the second half of 2027. It therefore retains the long 1y1y real-rate position initiated two weeks ago. Choosing real rather than nominal rates also left the trade relatively less affected by the subsequent rise in energy prices. The Middle East conflict is the most important external variable for the front end. The report acknowledges limited visibility into the conflict's trajectory and its impact on energy prices but expects the close relationship between energy prices and 2-year rates to persist. Historically, energy-driven rate sell-offs have had the greatest impact on the fourth through sixth contracts on the money-market curve. Client discussions have focused mainly on two questions: whether the far end of the money-market curve prices too much tightening, and whether a stagflationary shock would constrain ECB rate hikes. The report believes only a material military escalation or severe market dysfunction would likely trigger pronounced nonlinearity in the ECB's reaction function, and both scenarios currently appear relatively unlikely. The euro area's own data do not currently support the ECB rushing to protect economic activity. Flash PMIs for July and August and second-quarter 2026 GDP indicate a relatively solid economic foundation, while inflation is also rising at the margin, creating a modest negative for rates markets. Lane's comments this week were more hawkish than expected and drove a front-end sell-off. However, the report believes the ECB's framework-based forward guidance since the conflict began has been restrained and has not further amplified the rates sell-off. Even if a September rate hike is widely expected, meeting communications are expected to remain cautious. The long end also faces a recovery in supply. The timing of Germany's latest syndicated tap surprised the market, and supply will increase over the coming weeks as the summer lull ends, typically placing upward pressure on yields. The report also emphasizes that despite ongoing discussion of increased public spending, expectations for the euro area's aggregate 2026 budget balance have not changed materially, so the rise in yields cannot simply be attributed to region-wide fiscal deterioration. The euro area is expected to issue approximately €18–20bn of bonds through auctions next week. Germany brought forward its syndicated tap of a 30-year bond, while Finland issued a new bond as expected. The transmission of US factors to euro rates has also changed. Recent US macroeconomic data have reduced pressure on the Federal Reserve to raise rates in September. Although the July meeting minutes showed policymakers becoming increasingly impatient with above-target inflation, they did not suggest imminent tightening. Unexpected intervention by the US Treasury to limit increases in long-term rates has added further policy uncertainty. The report's term-premium update shows that since bottoming on July 23, the US curve's contribution to euro-area yields has turned positive, which the firm believes mainly reflects the market's response to the July FOMC outcome. The full impact of Treasury measures on the term premium still requires confirmation over the coming days. From a curve-value perspective, the report sees the area around 2y3y as the most attractive over the medium term because it has cheapened further recently. ECB and SMA surveys show a median consensus peak ECB deposit rate of 2.50%, followed by a gradual decline toward neutral over subsequent months. Market prices, however, embed only a few basis points of easing in the second half of 2027. The report explains that market pricing is a probability-weighted average of different scenarios, whereas survey consensus is closer to an average of the modes of individual forecasts. Money-market option skew indicates that, much like three months ago, the most likely rate view remains centered near neutral, but the market is highly concerned about the tail scenario of rates remaining higher for longer. Based on relative value and principal component analysis, the report adds a 3y2y/10y5y forward steepener. The 3y2y area is approximately 1.6bp undervalued, while the 10y5y area is approximately 1.9bp overvalued, reflecting a cheaper curve belly and relatively expensive valuations around the 15-year sector. The trade currently stands at 74bp, with a target of 78bp and a stop-loss of 71bp. The principal risk is that persistent geopolitical tensions push oil prices and front-end yields higher while increasing the probability of stronger second-round inflation effects. The report also maintains its long 1y1y real-rate position, entered at 53bp, with a 33bp target and 65bp stop-loss. Seasonality is bearish for both duration and curve direction. Based on market moves from 2009–2025, bearish duration seasonality in 10-year German government bonds begins on the report date, with a 71% historical probability of a sell-off over the next two months and a reported Sharpe ratio of 0.5%. This signal replaces the previous duration seasonality signal that began in June. However, the report cautions that Middle East developments are actually more important than seasonality: the 10-year Bund yield continued rising after the initial upward move. A seasonal curve-steepening trend will also begin the following week. Its duration characteristics are stronger than those of the pure duration signal and point toward steepening in 10-year Bunds and euro 10s30s. In European government bond relative value, the firm continues to favor low-deficit countries. Based on concerns about insufficient fiscal consolidation, the portfolio had previously been short France versus the EU, Belgium versus Ireland, and Austria versus the Netherlands. The France versus EU trade has reached its target, while the other two positions remain open. The short FRTR 11/36 versus EU 12/36 was entered at 38bp, with a 42bp target and 35bp stop-loss, and is now closed. The long EU 30-year bond versus swaps was stopped out due to broad risk-off sentiment. The EU 10/55 versus swaps trade was entered at 91bp, with an 84bp target and 100bp stop-loss, and is now closed. The report remains neutral on Italy versus Germany. Positive factors include continued fiscal discipline, market-friendly government policies, and potential EU financing for additional defense spending. Negative factors include a more uncertain global risk environment, rising energy prices, and gradually increasing domestic political pressure. A high-frequency model using energy futures and the S&P 500 Index as explanatory variables indicates that the recent widening in the 10-year Italy–Germany spread has been driven mainly by international factors. For investors seeking a more cautious expression, the report proposes being long the body of a BTP 2049-51-53 butterfly. The butterfly is close to zero and could turn significantly negative if spreads widen sharply because the low-coupon BTP 1.7% 2051 would become more attractive due to its lower price. Other relative-value opportunities include the green NETHER 2040, which has returned to its cheapest level versus conventional 2038 and 2042 bonds. BGB 3/35 cheapened markedly in August after trading rich to the interpolated BGB 6/33-6/36 curve for most of the preceding year. The trade portfolio also maintains a Netherlands 10s30s steepener versus Germany, entered at -7bp, with a -2bp target and -10bp stop-loss; a 2y2y €STR/6s widener, entered at 21.8bp, with a 26bp target and 18bp stop-loss; a long IRISH 10/32 and short BGB 6/32 position, entered at -19bp, with a -26bp target and -14bp stop-loss; and a short RAGB 2/36 and long NETHER 7/36 position, entered at 14bp, with a 19bp target and 10bp stop-loss. Demand data provide important support for euro-area bonds. ECB balance-of-payments data for June show that foreign investors purchased approximately €200bn of euro-area debt securities, nearly twice the previous recent peak and a clear all-time record. France received approximately €63bn, Italy approximately €54bn, and Germany approximately €27bn, while Spanish data have yet to be released. The firm regressed the sum of country-level net inflows excluding Spain against the corresponding euro-area series and concluded that although the June figure was exceptionally strong, it remained consistent with the historical relationship between country-level and regional totals and was not an obvious data error. Data from the Dutch central bank show that the market value of bonds from all regions held by Dutch pension funds increased in the second quarter of 2026, partly due to the decline in yields during the quarter. A stronger US dollar should have raised the value of US bond assets, but the actual increase was modest, indicating that interest in US bonds remained insufficient. The composition of Dutch government bond holders was broadly stable in the second quarter, unlike the active pension-fund purchases of maturities beyond 10 years in the first quarter. Available data indicate that international investors absorbed most net issuance beyond 10 years during the second quarter, providing context for the syndicated 20-year issuance in September.

Analysis framework

The report first decomposes the macro drivers behind new highs in Bund yields, including the energy shock, euro-area growth and inflation, ECB communications, supply, and the US term premium. It then compares survey consensus, market forward pricing, and option skew to assess whether the policy path is overpricing tightening. The firm subsequently uses yield-curve relative value, principal component analysis, and historical seasonality to identify trade locations, and applies a high-frequency model, cross-border capital flows, issuance allocations, and investor holdings data to test relative value across countries and maturities in European government bonds.

Methodology notes

• Fixed Income and Credit AnalysisYield curve analysis

  Forward Yield Curve and Steepening Analysis

  The report compares relative valuations at curve points including 2y3y, 3y2y, 10y5y, and 10s30s to assess value in the belly and long end and construct forward-steepening trades.

• Event-Driven Strategy and Behavioral FinanceExpectation Gaps/Expectation Management

  Comparison of Survey Consensus, Market Pricing, and Option Skew

  The report distinguishes probability-weighted market prices from survey forecasts that approximate an average of modes, and uses option skew to explain why the market pays a premium for the high-rate tail risk even while neutral rates remain the prevailing view.

• Quantitative/Factor/Portfolio Theory

  Principal Component Analysis (PCA)

  The firm uses principal component analysis to measure how each forward point deviates from the overall curve shape, concluding that 3y2y is approximately 1.6bp undervalued and 10y5y approximately 1.9bp overvalued.

• Quantitative/Factor/Portfolio TheoryMulti-factor model

  High-Frequency Spread Attribution Model

  The report uses energy futures and the S&P 500 Index as explanatory variables to conclude that the recent widening in the 10-year Italy–Germany spread has been driven mainly by international risk factors.

• Cycle and Business Conditions Framework

  Interest-Rate Seasonality Framework

  The firm uses historical market moves from 2009–2025 to estimate seasonal patterns in duration and curve direction after specific dates, identifying a bearish Bund duration signal for the next two months and a steepening signal beginning the following week.

• Sector/Industry Analysis FrameworkSupply-demand framework

  Government Bond Issuance and Investor Demand Analysis

  The report combines prospective issuance volumes, syndicated issuance allocations, balance-of-payments flows, and pension-fund holdings to assess whether domestic and foreign investors can absorb additional supply and how it may affect yields.

• Quantitative/Factor/Portfolio Theory

  Country-Level Capital Flow Regression Validation

  The firm regresses aggregate country-level net inflows excluding Spain against the euro-area total series to test whether the record foreign bond purchases of approximately €200bn in June deviate from historical relationships.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Euro-Area Rates and German Government Bonds

  Policy expectations are the primary driver of new highs in yields, and the curve belly is relatively cheap, but the long end faces supply and seasonal pressures.

  Strengths

  The market is pricing forward ECB rates too high, while the area around 2y3y has cheapened further recently.

  Weaknesses

  Government bond supply is about to recover, and 10-year Bunds are entering a seasonally bearish duration window.

  Comparison

  The report prefers the curve belly and forward steepening rather than indiscriminately adding nominal duration.

  Risks

  Persistently rising energy prices may keep front-end yields elevated and increase second-round inflation risks.

• French Government Bond FRTR 11/36 / EU EU 12/36

  The short France versus EU trade has reached its target and been closed.

  Strengths

  The trade was entered at 38bp with a 42bp target.

  Weaknesses

  The report is concerned that France lacks sufficient fiscal consolidation.

  Comparison

  France is viewed more cautiously relative to low-deficit countries and EU bonds.

  Risks

  Insufficient fiscal consolidation was the principal rationale for the report's relative short position.

• Italian BTPs Versus German Government Bonds

  The report maintains a neutral view, believing positive and negative factors broadly offset each other.

  Strengths

  Fiscal discipline, market-friendly policies, and potential EU support for additional defense financing.

  Weaknesses

  An uncertain global risk environment, elevated energy prices, and rising domestic political pressure.

  Comparison

  The recent widening in the 10-year Italy–Germany spread is explained mainly by energy and global risk factors rather than purely domestic deterioration in Italy.

  Risks

  If global risks and the energy shock intensify, spreads may widen further.

• Dutch Government Bonds and Green NETHER 2040

  The report maintains a Netherlands 10s30s steepener versus Germany and identifies relative value in the green NETHER 2040.

  Strengths

  The green NETHER 2040 has returned to its cheapest level versus conventional 2038 and 2042 bonds.

  Weaknesses

  Dutch pension funds did not purchase maturities beyond 10 years as actively in the second quarter as they did in the first.

  Comparison

  The Netherlands 10s30s steepener versus Germany was entered at -7bp, with a -2bp target and -10bp stop-loss.

  Risks

  The absorption of additional long-end supply still needs to be monitored ahead of the syndicated 20-year issuance in September.

• Austrian RAGB 2/36 Versus Dutch NETHER 7/36

  The report maintains its relative-value trade of short Austria and long the Netherlands.

  Strengths

  The trade was entered at 14bp, with a 19bp target.

  Comparison

  The relative trade has a 10bp stop-loss.

• Irish IRISH 10/32 Versus Belgian BGB 6/32

  The report maintains its relative-value trade of long Ireland and short Belgium.

  Strengths

  The trade was entered at -19bp, with a -26bp target.

  Comparison

  The relative trade has a -14bp stop-loss; the report's previous positioning generally favored low-deficit countries.

• EU 30-Year Bonds Versus Swaps

  The existing long position was affected by broad risk-off sentiment and stopped out, and is now closed.

  Weaknesses

  The trade failed to withstand the broader risk-averse environment.

  Comparison

  The EU 10/55 versus swaps trade was entered at 91bp, with an 84bp target and 100bp stop-loss.

  Risks

  Broad risk-off sentiment may continue to affect the performance of ultra-long EU bonds versus swaps.

• Belgian BGB 3/35

  The bond cheapened markedly in August, creating a localized relative-value shift.

  Strengths

  Its previously rich valuation has corrected significantly.

  Weaknesses

  It traded rich to the interpolated curve for most of the preceding year.

  Comparison

  The comparison benchmark is the interpolated BGB 6/33-6/36 curve.

Key data

• Consensus Peak ECB Deposit Rate2.50%The median estimate in the ECB and SMA surveys, followed by an expected decline toward neutral over subsequent months.
• 3y2y Relative ValuationApproximately 1.6bp undervaluedPrincipal component analysis shows that this part of the curve belly is relatively cheap.
• 10y5y Relative ValuationApproximately 1.9bp overvaluedPrincipal component analysis shows that this forward area is relatively expensive.
• 3y2y/10y5y Steepener74bp; target 78bp; stop-loss 71bpThe new forward-curve trade added in this report.
• Long 1y1y Real RateEntry 53bp; target 33bp; stop-loss 65bpThe report maintains this trade.
• Seasonal Probability of a 10-Year Bund Sell-Off71%Based on historical moves from 2009–2025, with an observation period covering the next two months.
• Sharpe Ratio of the Seasonal Signal0.5%As presented in the original report.
• Expected Euro-Area Issuance Next WeekApproximately €18–20bnExpected to be issued entirely through auctions.
• Foreign Purchases of Euro-Area Bonds in JuneApproximately €200bnAn all-time record and nearly twice the previous recent peak.
• French Bond Inflows in JuneApproximately €63bnOne of the principal beneficiary markets in the euro area.
• Italian Bond Inflows in JuneApproximately €54bnOne of the principal beneficiary markets in the euro area.
• German Bond Inflows in JuneApproximately €27bnForeign investors recorded substantial inflows.

Impact & implications

The report argues that new highs in Bund yields do not imply the same directional value across the entire curve. Excessively high forward ECB tightening expectations and a cheaper curve belly support long real-rate positions and forward steepening, while recovering supply, bearish seasonality, and energy shocks may continue to weigh on long duration. At the country level, fiscal discipline and cross-border demand remain important sources of relative-performance differentiation, while the recent widening in Italian spreads primarily reflects the transmission of international risks.

Risks

• Persistent geopolitical tensions in the Middle East may push oil prices and front-end yields higher and increase the probability of stronger second-round inflation effects, representing the principal risk to the forward-steepening trade.
• Italy's global risk environment, energy prices, and domestic political pressures may offset fiscal discipline and policy support.
• The central concern underlying relative-value shorts in France, Belgium, and Austria is insufficient fiscal consolidation.
• Broad risk-off sentiment has already caused the long EU 30-year bond versus swaps position to hit its stop-loss.

What to watch

• Monitor developments in the Middle East conflict, energy prices, and their linkage with 2-year rates and the fourth through sixth money-market contracts.
• Watch whether the ECB maintains cautious communications at its September meeting despite expectations of a rate hike.
• Monitor the recovery in euro-area supply over the coming weeks and the impact of approximately €18–20bn of auction issuance next week on yields.
• Track the full impact of US Treasury intervention on the US term premium and its transmission to euro-area yields.
• Await Spain's June capital-flow data to complete the country-level breakdown of record foreign purchases of euro-area bonds.
• Monitor supplementary Dutch pension-fund holdings data released in mid-September and demand for the syndicated 20-year Dutch government bond issuance in September.