Tech bonds squeeze European debt

European public finances face increased pressure as American technology firms flood global markets with new debt instruments. This shift intensifies competition for fixed income funds that typically support sovereign and corporate borrowing across the continent.

Four major US tech companies, including Amazon, Alphabet, Meta, and Oracle, have issued approximately $250 billion in dollar-denominated bonds since early 2025. They have also sold $41 billion in euro-denominated bonds, according to data from AI Industry Reviews. Microsoft recently joined this trend with a $25 billion bond sale, all issued in dollars.

Analysts project that total new bond sales by these hyperscalers will reach $420 billion next year. Dutch bank ING estimates that about €60 billion of this volume will be issued in euros. This influx of corporate debt coincides with rising yields on government bonds in key European economies.

France illustrates the strain on public finances. The country’s public debt stands at 119% of GDP, with a deficit exceeding 5%. Yields on French 10-year bonds have climbed from roughly 3.7% to nearly 5% over the past six months. Consequently, the government’s interest bill is expected to rise from €79 billion to €91 billion next year, surpassing €100 billion by 2028.

Viktor Hjort, global head of credit strategy at BNP Paribas, describes this situation as bond abundance. He notes that the presence of tech giants in the euro bond market is already creating competition within the corporate sector and between corporates and governments for available capital. Hjort points out that recent yield increases were driven by rebounding energy prices and France’s political crisis, which revealed growing competition for capital.

The European Central Bank economists warned in August that while the euro bond market is adapting, the large and concentrated debt inflows could make it harder for other economic sectors to access finance. They expressed concern about potential spillover effects on the sovereign and supranational segments of the bond market, which could raise borrowing costs for governments and international lenders.

Goldman Sachs reported last week that rising interest costs are beginning to hurt earnings at European companies. For firms in the Stoxx 600 index, interest costs as a share of sales have risen by nearly half since 2022, cutting earnings by more than 5% over the same period. These companies may face pressure to cut investments in new plants and equipment, as well as shareholder payouts, to prioritize loan repayments.

A January study by the OECD found that in European countries where AI adoption is spreading fastest, borrowing costs for cities and regions tend to rise. Christos Makridis, a co-author of the study from Arizona State University, noted that this trend contrasts with the United States, where AI investments are linked to lower borrowing costs for municipalities. This suggests that local governments funding schools and transport may feel the effects of the AI boom.

The additional billions in new bonds planned for next year could add further pressure to Europe’s widening fiscal strains. While AI bonds are not the sole cause of these issues, the massive capital appetite of US Big Tech firms creates a direct link between American innovation spending and European borrowing costs.