ECB Quantitative Tightening 2026: BTP Bund Spreads, Fiscal Compliance, and the Eurozone Absorption Test

From 4.00 to 2.50: the deposit facility cut path #

The Governing Council raised the deposit facility rate to 4.00 percent on September 14 2023, the tenth consecutive hike from the minus 0.50 percent floor of July 2022 and the highest level since the euro's introduction. The September 2023 statement framed the level as one that, if maintained for sufficiently long, would make a substantial contribution to returning inflation to the 2 percent target. That level held for nine months. The first cut, 25 basis points to 3.75 percent, was delivered on June 6 2024, with President Lagarde refusing to pre commit and anchoring on inflation outlook, dynamics of underlying inflation, and strength of monetary policy transmission.

Cuts followed at September 2024, October 2024, December 2024, January 2025, and March 2025, a cumulative 150 basis points to 2.50 percent. The Eurosystem staff projection of March 2025 placed headline HICP at 2.3 percent for 2025 and 1.9 percent for 2026, with core HICP at 2.2 percent and 2.0 percent. Compensation per employee printed 4.1 percent in Q4 2024, still above the 3 percent level the Council judges consistent with target. The Q1 2026 negotiated wages tracker decelerated to 3.2 percent, cited in the April 2026 decision as evidence that disinflation is becoming entrenched.

APP and PEPP runoff: balance sheet mechanics and the floor system #

The Asset Purchase Programme entered partial passive runoff in March 2023 and full passive runoff from July 2023, with no reinvestment of maturing principal. From a peak of EUR 3.26 trillion in mid 2022, APP holdings fell at an average pace near EUR 30 billion per month, leaving roughly EUR 2.6 trillion at end 2024, a cumulative reduction of approximately EUR 660 billion. The public sector purchase programme is around 80 percent of the total, and the PSPP runoff falls primarily on Bund, OAT, and BTP curves in capital key proportion, with a long end bias from legacy maturity profiles. PEPP reinvestments continued in full until end June 2024, halved in H2 2024, and ended on January 1 2025. With EUR 1.7 trillion peak holdings, the monthly runoff has been near EUR 17.5 billion. PEPP flexibility, which skewed reinvestment to stressed sovereigns, was the first defence against fragmentation in 2022 and 2023. Its end leaves the TPI as the only remaining sovereign backstop.

On March 13 2024 the Governing Council concluded its operational framework review. The deposit facility rate remains the policy stance instrument. Liquidity provision moves to a demand driven approach, with banks bidding for reserves at the main refinancing operations. The corridor between the deposit facility and the MRO narrowed from 50 to 15 basis points effective September 18 2024, with the marginal lending facility set 25 basis points above the MRO. This is a soft floor, not the abundant reserves regime of the Federal Reserve, engineered to coexist with a shrinking balance sheet. The framework signalled, without committing on size, that the Eurosystem will consider re introducing a Structural Bond Portfolio after 2026. A Structural Bond Portfolio of EUR 200 to 400 billion would re establish a central bank bid for euro area sovereigns and partially offset duration absorption pressure on the private sector.

BTP Bund basis: from 200 to 115 basis points #

The 10 year BTP Bund spread is the canonical fragmentation gauge. It traded above 200 basis points repeatedly through 2022 and 2023, hitting 250 basis points on October 4 2022 in the wake of the Truss crisis spillover and the early Meloni budget. The spread compressed through 2024 as the Meloni government's revised DEF and the September 2024 Piano Strutturale di Bilancio di Medio Termine were judged credible by the Commission, and as the new EU fiscal rules framed Italy's seven year adjustment path as compatible with debt sustainability. The March 2024 low of 138 basis points was followed by a 2024 average near 155 basis points and a Q1 2026 print near 115 basis points, the tightest level since 2021.

Three factors explain the compression. The first is the credibility premium attached to a stable Italian government with a primary balance turning positive in 2026 for the first time since 2019. The second is the relative supply story. France issued EUR 320 billion of negotiable medium and long term debt in 2025 against an Italian programme of EUR 360 billion, and per unit fiscal stress in the OAT curve has risen as French politics rotated through Barnier and Bayrou governments and the deficit overshoot to 6.0 percent in 2024 broke the historical Bund OAT relationship. The third is the absence of TPI activation pressure. With the BTP cash basis inside historical fragmentation thresholds, the TPI option is priced as out of the money, and Italian sovereigns trade closer to a normal core periphery convergence basis than to a stressed fragmentation basis.

EDP compliance: Italy, France, and the new fiscal rules #

The reformed Stability and Growth Pact, in force from April 30 2024, replaced the binary 3 percent deficit and 60 percent debt rule with country specific medium term fiscal structural plans. Member states submit a four year baseline path, extendable to seven years if conditioned on investment and reform commitments, with a net expenditure rule as the operational anchor. On June 19 2024 the Commission opened Excessive Deficit Procedures against Italy, France, Belgium, Hungary, Poland, Slovakia, and Malta, with Romania already in EDP since 2020. Italy submitted its Piano Strutturale di Bilancio di Medio Termine on September 27 2024, requesting the seven year window. France submitted its plan on October 31 2024, also requesting seven years, with a deficit target of 5.6 percent for 2025 against a 2024 outturn of 6.0 percent.

Italy's path holds debt at 137 percent of GDP through 2026 before a slow descent toward 134 percent by 2031, anchored on a primary balance that turns positive in 2026 and reaches 1.5 percent of GDP by 2027. The trajectory is consistent with the Commission's debt sustainability methodology, which weights the primary balance, the implicit interest rate, and nominal growth in stochastic projections. France's path is more demanding. The deficit must compress from 6.0 percent in 2024 to 2.8 percent by 2029, requiring a structural primary adjustment of around 1.0 percentage point of GDP per year. The Bayrou government, which succeeded the Barnier cabinet after the December 2024 no confidence vote, has retained the prior fiscal framework and committed in the April 2026 budget orientation to the 5.6 percent target for 2025. Slippage on this path would re open the OAT widening that started in mid 2024 and would interact with TPI eligibility, since TPI activation requires compliance with the EU fiscal framework.

TPI, NGEU, and the 2026 absorption test #

The Transmission Protection Instrument was introduced on July 21 2022 and remains unused. TPI eligibility rests on four conditions: compliance with the EU fiscal framework, absence of severe macroeconomic imbalances, fiscal sustainability per Commission and IMF analysis, and sound and sustainable macroeconomic policies. The conditionality set is more demanding than OMT in 2012, which required a full ESM adjustment programme, but it is also less explicit than OMT, leaving substantial discretion to the Council in defining unwarranted, disorderly market dynamics. The October 2025 strategy stocktake committed the Council to a quarterly internal review of fragmentation indicators, including BTP Bund basis swap mismatches and GC repo levels by jurisdiction, but stopped short of publishing a quantitative trigger.

The 2026 absorption test is the binding constraint. Combined Eurozone net long end issuance for 2026 exceeds EUR 700 billion, comprising roughly EUR 480 billion of sovereigns net of redemptions, EUR 150 billion of EU NextGenerationEU and SURE issuance, and EUR 70 to 90 billion of supranational and agency paper. With the Eurosystem no longer reinvesting either APP or PEPP, this is the largest year of net duration supply to private investors in the euro area's history. The buyer base has shifted toward European banks, which absorbed 35 to 40 percent of net 2024 and 2025 issuance under HQLA reinvestment of TLTRO repayment liquidity, foreign official sector buyers principally Asia central banks, and Japanese life insurance hedged out to the 30 year point. The clearing yield is the empirical question of 2026, and the variable that determines whether the BTP Bund basis stays inside 130 basis points or returns toward the 175 basis point average of the QE exit cycle.

Implications for managers, DMOs, and bank treasuries #

Three implications follow for fixed income managers. First, duration positioning in long end Eurozone sovereigns should be sized against the 2026 absorption clearing risk rather than the disinflation glide. Curve steepeners on Bund and OAT 10s30s express the supply story without outright periphery credit risk. Second, BTP positioning has a favourable fundamental setup of stable government, primary surplus, and EDP compliance, but an asymmetric tail of French OAT widening dragging BTP wider on a fragmentation contagion channel. Tactical longs in BTP versus structural shorts in OAT capture both legs. Third, EU NGEU paper trades 5 to 15 basis points cheap to the secondary curve of comparable AA sovereigns and is an underutilized relative value asset.

For sovereign debt management offices the implication is duration de risking. The Italian Tesoro extended the average residual maturity of Italian debt from 7.0 years in 2022 to 7.7 years in 2025, and the 2026 issuance plan front loads syndicated long dated benchmarks before the H2 2026 absorption stress window. The French AFT, the Spanish Tesoro, and the Belgian Debt Agency have signalled similar intent, with Belgium issuing a 50 year benchmark in February 2026 at 4.05 percent. For bank treasuries, the implication is LCR composition under a TLTRO drained system, where HQLA is increasingly held as sovereigns rather than central bank reserves, and where unrealized loss accumulation on hold to maturity books has become a material capital consideration following the 2023 Silicon Valley Bank precedent on AOCI.

The base case carries the BTP Bund basis inside 130 basis points through 2026, with TPI on standby, the deposit facility stabilising at 2.00 to 2.25 percent, and the Structural Bond Portfolio announcement landing in late 2026 or early 2027. The downside combines French fiscal slippage to 6.5 percent of GDP, OAT widening above 100 basis points to Bund, BTP contagion to the 175 basis point band, and a public TPI debate that itself triggers volatility. The upside combines a faster Italian primary surplus build, credible French consolidation, and a Structural Bond Portfolio of EUR 300 to 400 billion that re anchors private sector absorption capacity. Probability weights are 55, 25, and 20 percent on a Strategos discipline. The hinge variable is French execution.

Sources #

• ECB Monetary Policy Decisions, March 2024 to April 2026
• ECB Economic Bulletin, Issues 1 to 8, 2024 and 2025
• ECB Operational Framework Review, March 13 2024 statement
• ECB Consolidated Weekly Financial Statement of the Eurosystem
• ECB Transmission Protection Instrument, July 21 2022 statement
• Italy Piano Strutturale di Bilancio di Medio Termine, September 2024
• France Plan Budgetaire et Structurel a Moyen Terme, October 2024
• European Commission, Excessive Deficit Procedure decisions, June 19 2024
• European Commission, Reformed Stability and Growth Pact, April 30 2024
• Banca d'Italia Statistical Bulletin and Sovereign Issuance Reports
• Deutsche Bundesbank Monthly Report, 2024 and 2025 issues
• Eurostat Government Finance Statistics, deficit and debt notification
• IMF Article IV Consultation, Euro Area, 2025
• Reuters ECB and Eurozone fixed income coverage 2024 to 2026
• Financial Times Eurozone sovereign and ECB coverage