Tech firms drive borrowing boom

The biggest shift in credit markets over the past six months hasn’t come from banks or industrials, but from Big Tech. Alphabet, Amazon, and Meta have been issuing debt on a scale rarely seen in the sector, making them among the most significant contributors to global corporate bond supply.

This wave of issuance reflects a simple reality: the largest technology companies are entering a capital expenditure cycle that can’t be funded through cash flow alone. Two forces sit behind this shift.

First, artificial intelligence is driving the build-out of data centres, semiconductors, networks, and supporting infrastructure, which is extraordinarily capital intensive. As in previous investment cycles in telecoms and media, balance sheets are expanding to fund what is seen as the next phase of structural growth.

Second, US policy incentives have materially improved the economics of domestic capital expenditure, effectively accelerating investment. In practice, this acts as a subsidy, and corporates are responding accordingly.

Normally, a sharp increase in borrowing would place pressure on credit quality. But in this case, the scale of earnings matters more than the scale of issuance. With EBITDA across Alphabet, Amazon, and Meta running at roughly $150bn to $200bn, even large increases in debt translate into only modest changes in leverage.

The impact on debt-to-EBITDA is limited, and these issuers remain well within high investment grade rating thresholds. The more immediate effect is on market pricing, as bond markets tend to react to large increases in supply by demanding a higher spread.

This dynamic is well established, particularly in sectors experiencing capex-driven issuance cycles. What makes the current episode notable is that it is occurring in some of the highest-quality names in the market, which are becoming a larger part of major bond indices, such as the Bloomberg Global Aggregate Corporate Index.

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Yet, there are structural constraints on the demand side, as bond portfolios are typically subject to strict diversification limits, capping exposure to any single issuer well below levels commonly seen in equities.

In the short term, the bond market simply finds it difficult to absorb issuance at this scale, resulting in a notable dislocation. Some of the largest, most profitable companies in the world are issuing debt at spreads that appear attractive relative to the broader investment grade market.

For investors, that creates a clear opportunity, as the combination of strong fundamentals, policy-driven investment, and temporary supply pressure is opening a window into high-quality credit at more favourable valuations than might otherwise be expected.

Investors can consider rates and their impact on investment decisions.

The current surge in Big Tech borrowing is not just a story about funding growth – it is also creating a rare entry point for bond investors. They are likely to be influenced by the growing weight of these companies in the market.

As the market continues to evolve, it will be important to watch how these companies adapt to the changing environment and how investors respond to the opportunities and challenges presented by this shift.