Big Tech's AI Bond Wave Is Repricing Canadian, Swiss and Sterling Credit

How AI Funding Is Flooding Smaller Currency Bond Markets

Hyperscale technology companies have become a sudden force in non-US credit markets this year by selling bonds in Canadian dollars, Swiss francs and sterling. Rather than borrowing only in dollars or euros, AI infrastructure giants such as Alphabet and Amazon are tapping smaller currency markets for large volumes, pushing up long-term borrowing costs and prompting local issuers to rearrange their deal calendars.

The scale is visible in specific transactions. Alphabet raised C$8.5 billion early this year, briefly the largest bond sale on record in the Canadian market, before Amazon returned weeks later with a C$14 billion deal. In Canada, the AA-rated corporate credit index has weakened so much that its spread over government bonds is now wider than that of the lower-rated A index, an inversion market participants link directly to the concentrated supply from the two technology giants.

The same pattern is appearing in Europe. Amazon and Alphabet have executed significant Swiss franc transactions, and Google's parent company has sold a 100-year sterling bond. Analysts say the heavy supply from data centre builders is making long-dated investment-grade debt harder for other companies to issue, while also changing the composition of local benchmarks. According to S&P, Amazon and Alphabet now jointly account for 7.7% of the Swiss investment-grade credit index after having no presence until this year.

Some market participants argue that the effect is not all negative. The new issuance brings attention, diversification and liquidity to smaller debt markets, and Rob Lamb of RBC Capital Markets notes that the deals have shown more capacity in those markets than many thought existed. Still, the concentration is creating a new risk: if either issuer runs into trouble, the smaller markets that have absorbed so much of their debt will be disproportionately exposed.

Where the Hyperscaler Bond Wave Hits Curves, Issuers and Index Investors

The Canadian AA anomaly: Alphabet and Amazon repriced the top of the curve

The article's most concrete market signal is in Canada, where heavy issuance from Alphabet and Amazon has left the AA corporate index trading wider than the A index. That is an unusual break from the normal relationship, in which higher-rated borrowers pay less relative to government debt than lower-rated ones. Souheir Asba of AllianceBernstein said the tech issuers essentially come in and reprice the entire high-quality curve. It is a supply effect: many bonds of similar rating arriving in a market of limited local depth forces spreads wider for all borrowers of comparable credit quality.

Long-end access: why other borrowers are being crowded out

Deutsche Bank's Steve Caprio points to the long end of the market as the area most affected. The hyperscalers have concentrated issuance in long-dated debt, which is precisely where other companies want to borrow for their own large projects. Caprio's view is that other firms cannot issue as much long-term debt as they would like because the technology giants are absorbing available demand. This follows from the funding needs of AI infrastructure, which require very large and durable liabilities. The result is a competitive squeeze in specific currencies and maturities even when the broad market appears open.

The European underweight: smaller buyer bases, wider spreads

Deutsche Bank's underweight stance on European investment-grade credit versus US credit is based partly on slower growth and political risk, but also on an expected wave of technology issuance in euros. The bank argues that euro-denominated high-grade debt does not have as broad a natural buyer base as dollars, so the arrival of big tech borrowers could widen spreads by more than in the larger dollar market. Ian Horn of Muzinich adds that the rise in borrowing costs for long-dated sterling debt is partly a consequence of technology firms' long-duration issuance across markets. When a new class of very large borrower begins tapping a currency, it changes the supply-demand balance in maturities where few alternative buyers can absorb the volume.

Index concentration: a new single-name risk in Switzerland

S&P's calculation that Alphabet and Amazon now represent 7.7% of the Swiss investment-grade credit index turns an issuance phenomenon into a benchmark problem. Investors who track or must respect local index composition are effectively forced to take a growing exposure to two US technology companies inside a relatively small domestic market. Asba warns that if either issuer develops a problem, the smaller markets will be much more affected because of the concentration. That cuts against the usual diversification rationale for buying an index: a local credit investor is no longer only exposed to Swiss corporates, but also to the credit risks of two AI infrastructure companies.

The bullish take: liquidity and diversification

Not every market participant sees the change as a threat. Al Cattermole of Mirabaud Asset Management argues that hyperscaler issuance is excellent for smaller, less liquid markets because it adds diversification, attracts attention and keeps cash in domestic markets. Rob Lamb of RBC adds that the deals have demonstrated more capacity in those markets than previously assumed. These arguments are not contradictory with the crowding-out concern; they describe the same event from two sides. The supply raises costs for other issuers, but also deepens the market for investors, which is why the timing and sequencing of deals now matter so much.

What Borrowers and Credit Investors Can Do as Big Tech Sets the Calendar

The repricing is most relevant to corporate borrowers planning long-dated deals in Canadian dollars, Swiss francs, sterling or euros, and to credit investors holding those currencies.

• Treat hyperscaler earnings as debt-market events. RBC's Rob Lamb says the quarterly results of hyperscalers have become a fixed calendar event for bond issuance, comparable to US payrolls or central bank decisions. Corporate treasurers should check Alphabet's and Amazon's reporting dates before finalising long-dated issuance windows in smaller currency markets.
• Model the Canadian AA/A spread anomaly before pricing high-grade issuance. Heavy supply from Alphabet and Amazon has left the Canadian AA corporate index spread wider than the lower-rated A index. Borrowers with AA ratings in Canada should expect less favourable relative pricing than historical relationships suggest; investors should question the information content of that inversion before treating it as a recession signal.
• Plan for constrained long-end capacity. Deutsche Bank's Steve Caprio says other companies cannot issue as much long-term debt as they would like because hyperscalers are absorbing issuer capacity. Treasurers should not assume the long end will remain open at stable spreads if large technology issuance coincides with their deal window.
• Account for index concentration in Swiss IG portfolios. With Amazon and Alphabet now 7.7% of the Swiss investment-grade index according to S&P, investors benchmarked to that index hold a growing single-name exposure to US technology companies. Portfolio managers should measure that exposure separately and decide whether to hedge or underweight it if their mandate is domestic Swiss credit.
• Reassess European IG positioning against the expected euro-denominated wave. Deutsche Bank's underweight on European investment-grade versus US credit is based partly on a smaller natural buyer base for euro technology bonds and the expectation of spread widening. Fixed-income allocators with euro credit exposure should stress-test portfolios for a large, long-dated technology supply pipeline rather than treating current spreads as a stable entry point.