Man Group Plc said that bubble risks are mounting as bond sales for artificial intelligence projects reach record levels [1].

The warning comes as global investment firms and corporations accelerate spending on the physical infrastructure required to support AI. If the financial returns on these projects fail to meet the high costs of the debt used to fund them, it could lead to widespread instability in the bond markets.

Man Group, a global investment management firm, identified the surge in AI-related bond issuances as a primary driver of this risk [1]. The firm said that the rapid expansion of financing for AI infrastructure projects has created an environment prone to speculation [1].

Bond markets have seen a significant increase in activity as companies seek capital to build data centers and acquire specialized hardware. While this growth reflects the industry's ambition, the firm said that the pace of issuance is outstripping the immediate economic utility of the assets being built [1].

The firm said the current trend mirrors previous cycles where aggressive borrowing for new technology led to market corrections. By focusing on the debt side of the AI boom, Man Group highlighted a vulnerability that differs from the equity-market enthusiasm often discussed by analysts [1].

Market observers are now monitoring whether the revenue generated by AI services can keep pace with the interest payments on these record-breaking bond sales. The firm said that the sustainability of this growth depends on the actual deployment, and profitability, of the infrastructure [1].

Man Group said that "bubble risks" are mounting as AI‑related bond sales have surged to record levels.

This warning shifts the conversation about AI sustainability from stock valuations to the debt markets. While equity bubbles are common in tech cycles, a bond bubble implies that the underlying corporate debt used to build AI infrastructure may become unsustainable if the technology does not monetize quickly enough to service that debt.