Europe's Debt Pile Is Nearing €1 Trillion. It's Still Not a Safe Asset

By the end of 2026, the European Commission will have issued close to €1 trillion in bonds. They carry the highest possible credit rating. And they still don't trade like a safe asset — because of a technicality that has nothing to do with whether Europe can pay its debts.

Europe's Union Has Nearly €1 Trillion in AAA Bonds — and Still No Safe Asset

Think of a "safe asset" the way you'd think of a savings account that every bank in the world trusts completely — something so reliable that governments, pension funds, and central banks are happy to hold it instead of cash. In the United States, that role is played by Treasury bonds. In Europe, no single instrument plays that role, even though the European Union now borrows more than most of its member states.

The scale is already large. Research from Columbia University economist Giovanni Bonfanti, published through an analysis of what's blocking supranational EU debt from behaving like sovereign bonds, puts the European Commission on track to have roughly €1 trillion of bonds outstanding by the end of 2026 — more than Belgium and the Netherlands owe combined. Add in the European Stability Mechanism, the European Financial Stability Facility, and the European Investment Bank, and the total debt issued by EU-linked institutions is already close to €2 trillion. In 2025, the Commission was the single largest net issuer of euro-denominated debt in the world, ahead of France and Italy.

Every one of these bonds carries a AAA rating. And yet, as the chart below shows, they still borrow more expensively than Germany does.

AAA-Rated Doesn't Mean Treated Like a Government

Here's the part that should be confusing, and is the whole point of the research: credit quality isn't the problem. Bonfanti compared EU bond yields against three other AAA-rated issuers — the ESM, the EFSF, and the EIB — plus KfW, a German state-owned development bank that has no institutional connection to the EU at all. Despite completely different mandates and legal structures, all five trade at almost exactly the same yield, well above Germany, across every maturity. Even KfW, backed by the same German tax revenue as Bunds themselves, pays a real premium simply because it isn't legally a government.

That's the clue to what's actually going on. It isn't that markets doubt the EU can repay its debt — its credit-default-swap premia are low and stable. It's that none of these issuers is formally classified as a sovereign, so they all get treated the same way by the market's plumbing, regardless of who ultimately stands behind them.

The Rulebook, Not the Risk, Keeps Investors Away

So why does the market lump AAA-rated EU debt in with everything else instead of pricing it like the safe asset it technically is? The answer is almost entirely bureaucratic: EU bonds are excluded from the major sovereign bond indices that large investors use as benchmarks. Think of an index like a shopping list that a pension fund's computer follows automatically — if a bond isn't on the list, most of that fund's money is never allowed to buy it, no matter how safe it actually is.

Bonfanti modeled what would happen if index-tracking investors matched their benchmarks exactly. The result: demand for EU bonds would fall by over 80% compared to demand for an equivalent sovereign bond. That single classification decision — not the EU's credit quality — is what starves these bonds of buyers, and a smaller buyer pool means prices fall harder whenever markets get stressed, which pushes the yield premium up even further.

There's a second layer of volatility on top of this: how confident investors are that the European Central Bank will step in during a crisis. When that confidence is high, EU bonds trade almost like sovereigns. When it wavers, the spread widens quickly — because a bond with a smaller buyer base needs a bigger safety net to feel safe.

Why National Governments Won't Rewrite the Rulebook Themselves

If the fix is "just add EU bonds to sovereign indices," why hasn't it happened? The Commission has actually asked. Index providers have declined. Bonfanti's research points to a coordination problem: no provider wants to be first, because in the current setup, supranational bonds behave poorly during crises — precisely because they're excluded — so including them still looks risky from an index provider's chair.

There's also a political reason national governments quietly prefer the status quo. Reclassifying EU bonds as sovereign-equivalent would reduce the index weight — and raise the relative attractiveness — of national government bonds. For countries already paying more to borrow, that's an unwelcome trade-off, and it gives them an incentive to resist any change, even one that would ultimately deepen Europe's capital markets.

The euro-area pecking order isn't fixed, either, and it can move fast. As of January 2026, a snapshot of how euro-area borrowing costs have realigned this year shows France downgraded from AA to A by Fitch and S&P, with its yields drifting close to Italy's — a BBB-rated country. The ESM and EIB still trade just above Germany, the Netherlands, and Ireland at the safest end of the spectrum, while the EU itself sits roughly in the middle: about ten euro-area sovereigns currently borrow more cheaply than it does, and ten borrow more expensively.

None of this means a European safe asset is impossible. Bonfanti's proposed fix — consolidating the Commission, ESM, EFSF, and EIB's issuance into a single European Debt Agency — wouldn't require any new borrowing, just a bigger, more coherent market that index providers couldn't keep sidestepping. But it would require a politically costly treaty change, and the member states with the most to lose from a reshuffled index are the ones who'd have to agree to it. That's a familiar problem for the EU: Germany's own recent effort to shore up its fiscal position at home is a reminder that even the bloc's anchor economy is focused on national priorities first. And as Britain's own experience outside the bloc has shown, joint European financing arrangements are hard enough to build even among willing members — let alone with the ones sitting this one out. For now, Europe has nearly €1 trillion of AAA-rated debt and still no single instrument that trades like the safe asset that debt is meant to be.