Why an ECB Rate Hike on June 11 Would Be the Wrong Response to the Iran Oil Shock

The ECB meets this Thursday, June 11, and barring a monumental surprise, it is going to hike. This is no longer a theoretical possibility: Euribor futures are pricing a 99% probability of a 25 basis-point increase, lifting the deposit rate from the current 2.00% to 2.25%. It would be the first hike since 2023, breaking the pause the council has held since the April 30 meeting. And here’s the uncomfortable part: inflation really is coming back. Eurozone harmonised CPI moved from 2.2% in February to 3.0% in April. Core has been rising for three months. And the council’s hawks — Schnabel, Holzmann, Nagel — have spent weeks preparing the ground with increasingly hawkish speeches.

My opinion, unvarnished: doing it would be the ECB’s worst monetary policy mistake in a decade. Not because inflation doesn’t exist — it does, the data doesn’t lie — but because this inflation doesn’t look anything like 2022’s. It isn’t demand overheating. It isn’t a tight labour market. It isn’t a consumer with post-COVID excess savings. It’s a structural, exogenous, geopolitical supply shock called the Iran war. And hiking rates to fight a supply shock is like taking paracetamol for a broken leg: noisy, useless.

First: where the inflation rebound is coming from

Since the Iran-Israel conflict escalated into open war at the end of the first quarter, Brent has moved from $72 to settle around $105-115. That’s a 50-55% jump in less than four months. European TTF natural gas, which had normalised around 28-32 EUR/MWh after the 2022 adjustment, is back above 55. Wholesale diesel is up 28% year-to-date. Maritime insurance through the Strait of Hormuz has multiplied by six, and a third of the world’s oil passes through there.

Decompose April’s European CPI and you see exactly that: 70% of the increase in inflation comes from energy and second-round effects in transport, logistics and basic food. The narrow core component — excluding energy, unprocessed food and regulated services — is essentially flat. Services are where they were before — not firing up — because collectively-bargained wages haven’t renegotiated higher since the shock.

Translation: we’re not seeing inflation feeding itself through a wage-price spiral. We’re seeing the direct, mechanical pass-through of a more expensive energy input moving down the value chain. It’s accounting, not behaviour.

Why the demand-vs-supply distinction changes everything

This is the lesson that just won’t stick at central banks: monetary policy works on the demand side. Hiking rates cools consumption, slows investment, cools credit, reduces wage pressures coming from an economy running faster than its factors can sustain. It works against demand inflation. Great. That’s what it was invented for.

What doesn’t work — because mathematically it cannot work — is supply inflation. If oil rises because Iran blocks the Strait of Hormuz, what exactly are you going to do by hiking Euribor 25 basis points? Convince the regime in Tehran to reopen the strait? Make Ras Tanura refine more barrels? Manufacture additional LNG in Qatar? No. What you will manage to do is destroy enough oil demand in Europe — through an induced recession — that the barrel comes down. In other words, you’re going to impoverish the continent until it can afford less energy.

It works, yes. That’s the mechanism. But it’s an enormous cost to fix a problem the central bank cannot solve at the root. Supply inflation ends on its own when supply gets restored — whether the conflict de-escalates, new routes open, energy substitution accelerates, or simply months pass and base effects do the job. Supply inflation doesn’t need a monetary assassination. It needs time and a response from the right side.

The European economy, reminder: it can’t take more restraint

This is the part that turns tragic when you stitch it together with the above. The economy the ECB would be tightening into is, plainly, in bad shape. Q1 eurozone GDP: +0.2%. Germany: -0.1%, technically in recession again. France: +0.1%. Italy: +0.2%. Spain: +0.5% — the only one moving, partly on tourism. German industrial production has been thirty-something months below pre-COVID levels. Manufacturing PMIs have been in contraction for two years.

And here’s the detail many people forget: the European economy is already absorbing the oil shock on the real side. Italian and Spanish petrol stations are 22% more expensive than in February. French and German utilities have raised industrial tariffs 18-25%. European households are cutting discretionary spending again, the same way they did in 2022. Consumer confidence has fallen eight points in four months. Which is to say, the energy shock is already doing its own recessionary work without the ECB lifting a finger.

Hiking rates on top of this is stacking a policy-induced recession on top of a contraction already caused by the external shock. Two punches in a row. One exogenous and unavoidable; the other perfectly avoidable and self-inflicted.

The exact precedent: July 2008

In July 2008, Brent was brushing $145. European inflation stood at 4%, almost entirely energy-driven. The economy was already showing serious signs of slowing. What did Trichet do? He hiked 25 basis points to “anchor expectations.” Three months later, Lehman Brothers collapsed, oil crashed to $35, and the ECB had to cut 325 basis points in six months. History remembers that hike as one of the worst monetary policy mistakes of the modern era.

The parallel with June 2026 is uncomfortably direct. Same structure: energy supply shock, headline inflation jumping, an economy weakening from the shock itself, council hawks pushing for a visible response. And, once again, the risk of acting against what looks like inflation when what you have in front of you is a supply problem your tool cannot fix.

European transmission, once again, is brutal

An often-forgotten detail: the European financial system doesn’t look like the American one. In the US, companies finance themselves mostly through bonds, with some buffering. In Europe, 75-80% of corporate credit runs through banks, and European banks lend at variable rates indexed to Euribor. A 25 basis-point ECB hike turns within weeks into more expensive commercial paper, credit lines and revolvers for hundreds of thousands of SMEs — the same SMEs already paying an energy bill 25% higher.

Mortgages are the same story. In Spain, Italy, Ireland and Portugal, a significant share of the outstanding mortgage stock is variable or mixed-rate, repricing annually against 12-month Euribor. Each 25 basis points costs an average Spanish family 30 to 50 euros more per month, indefinitely. On top of a fuel, gas and electricity bill already inflated by the shock. The spending power withdrawn from the real economy — through mortgage and energy at the same time — is huge.

The sovereigns and the fragmentation risk

European public debt is the highest since the Second World War. Italy is around 140% of GDP, France 115%, Spain 105%, Belgium 105%. Italian debt service already exceeds health spending. In France it’s a top-3 budget item. Each new issuance at higher rates raises the average cost of the stock over years — an effect that creeps in, but is irreversible once applied.

And then there’s the specifically European risk: fragmentation. The BTP-Bund spread — the gap between what Italy pays and what Germany pays on 10-year debt — moves every time investors think the euro is under stress. Today it sits around 175 basis points. In 2011, with Trichet hiking into a sovereign crisis, it blew past 500 and almost cost us the euro. A Middle East war, an energy-shock recession and an ECB hiking at the same time is exactly the cocktail to send that spread spiralling.

What they should do instead

First, distinguish clearly in their communications between supply inflation and demand inflation. Say it plainly. Acknowledge in the press conference, without ambiguity, that May’s inflation is dominated by the energy component and that monetary policy is not the right tool to combat an external shock.

Second, hold rates. The ECB is already in neutral-restrictive territory — deposit rate at 2.00%, refi at 2.15%, balance sheet shrinking in orderly fashion. That’s enough to fight any demand inflation that doesn’t exist. Anchor expectations through credibility and message, not through an unnecessary trigger pull on Thursday the 11th.

Third, push — within their mandate and through dialogue with the Commission and the Eurogroup — for the response to come from the right side: temporary, targeted energy support packages for vulnerable households and energy-intensive industries, accelerated investment in renewables and nuclear, coordinated use of strategic reserves, long-term contracts with non-OPEC producers. Fiscal policy has the tools monetary policy doesn’t. Use them.

And fourth, be patient. Supply shocks have a beautiful feature: they end. Either because the conflict resolves, or because base effects do the work (remember that twelve months from now the comparison base will already include this shock), or because substitution accelerates. The mistake in 2008 was not waiting. The mistake in 2026 would be repeating it knowingly.

What this means for your portfolio

Although this is a macro piece, there are practical implications. If you think, as I do, that the ECB shouldn’t hike but might do so under internal pressure, you need to position for both scenarios.

• Energy and commodities: this shock is structural, not transitory. Integrated European oil majors (Shell, BP, Repsol, Eni, TotalEnergies) trade at 6-8x earnings with 6-8% dividend yields. If Brent stays at $100-110, that cash generation is absurd.
• Gold: the classic insurance against monetary policy error and against geopolitical escalation. Up five years running, thesis intact.
• Long-duration euro bonds — 10-year Bund and OAT — are attractive if the ECB stays put or, better, cuts when it acknowledges the error. Decent coupon with potential capital gain.
• European banks: be careful. Short-term benefit if rates rise, but deteriorating credit to SMEs and households — squeezed both by energy and by mortgages — can eat the margin in six quarters. Selective.
• Large exporters (LVMH, ASML, SAP, Novo Nordisk, Roche): a rising euro on Fed-ECB divergence hits them. Pick on quality and pricing power, not the whole basket.
• Periphery (Italian BTP, Spanish and Italian corporate debt): attractive while fragmentation stays away. If it returns, you buy cheaper. Small position, patience.

Closing, no fluff

What we have in front of us in June 2026 is not 2022’s demand inflation. It’s not an out-of-control consumer. It’s not a tight labour market. It’s the shadow of Hormuz cast over every petrol station and every electricity bill on the continent. Monetary policy has no power to make oil cheaper. It only has the power to make Europe afford less oil. That difference, over the medium term, is the difference between a fragile recovery and a serious recession.

The ECB has a chance to show it learned from Trichet in 2008. The easy thing is to hike 25 basis points and dress it up as “credibility.” The hard thing — and the right thing — is to say in public what they all know in private: this isn’t our problem, this isn’t our tool, and we’re going to wait. Prudence, this time, isn’t called hiking. It’s called knowing the difference.

And if in the end they do it — let’s hope not — at least let the European investor have a portfolio ready to absorb the error. Because monetary error, when it lands on top of a geopolitical shock, doesn’t forgive.