Debt Doesn’t Hallucinate: What Credit Markets Signal for AI Infrastructure & Private Markets

Markets rallied strongly this week, reversing much of the prior week’s AI-driven selloff as resilient corporate earnings and easing geopolitical concerns restored investor risk appetite. Through Thursday, the S&P 500/NDX were +3%/+4% and semiconductor stocks advanced 6% for the week. The rebound was initially led by AI and technology shares following strong earnings and evidence that hyperscaler spending remains supportive of infrastructure demand. Sentiment also benefited from optimism surrounding Middle East negotiations, which pushed oil prices and Treasury yields lower earlier in the week and reduced concerns that energy-driven inflation would force the Federal Reserve to tighten policy further. YTD, the S&P 500 and Nasdaq 100 are now +13% each and our NPM Private Market tracker is +52%. (NPM; Bloomberg, 7/30/2026)

What are Debt Markets telling us about the AI Infrastructure Cycle?

Much has been written about the pace of AI infrastructure investment, with headlines mostly focused on hyperscaler capex, NVIDIA selling every GPU it can manufacture, and developers racing to secure power. In this weekly, however, we focus on what we view as one of the most informative indicators of the cycle, and one that has received far less attention: the debt markets.

The debt markets have become the primary source of funding for the AI buildout, likely the largest infrastructure spending cycle in modern economic history. And, as most readers probably know, credit investors ultimately care less about “narratives” and more about cash flows, refinancing risk, downside protection, and long-term asset values. As a result, the debt markets have become one of the best real-time indicators of whether the extraordinary pace of data center development is sustainable. Our current take is that the debt market is not currently suggesting a market approaching the end of a speculative bubble. Rather, to us the debt markets suggest a market transitioning from rapid expansion toward institutional maturity.

Why do we care about the debt markets?

Historically, credit markets have proven highly effective at identifying bubbles ahead of equity markets. To cite a couple of examples, during the telecom boom of the late 1990s, debt markets recognized that too much speculative fiber had been laid before equity markets. In the energy industry, the 2015–2017 shale restructuring cycle also began in the debt markets. (NPM, 7/31/2026)

A common misconception is that hyperscalers can fully fund AI infrastructure from internal cash flows. While Microsoft, Amazon, Alphabet, and Meta collectively generate hundreds of billions of dollars in annual cash flow, AI investment has become so large that balance sheet funding alone is increasingly inadequate. For example, in 2Q2026, Alphabet reported its first negative cash flow quarter as a public company. (Bloomberg, 7/23/2026) As a result, even companies with some of the best balance sheets in the world are seeking external capital through an “any and all” strategy including IG and HY corporate bonds, project finance, construction loans, private credit, infrastructure funds, asset-backed securities, and securitizations.

Importantly, and as we will discuss, bond markets have continued to absorb enormous issuance without requiring meaningful spread widening. AI-related issuance has accounted for roughly 15%/20% of total IG/HY corporate issuance in the US YTD. Credit investors appear broadly confident that these companies will generate sufficient cash flow to digest massive quantities of debt. If institutional investors believed AI infrastructure spending represented a speculative bubble, borrowing costs would already be rising materially. They have not. (NPM; Bloomberg, 7/30/2026)

While the equity markets have recently been volatile for AI infrastructure, today’s debt markets continue to send a relatively constructive, but increasingly nuanced, message. Credit markets continue to fund AI infrastructure at unprecedented levels, suggesting that institutional investors broadly believe demand for compute will remain strong for years.

At the same time, however, debt investors are becoming more selective about which projects deserve financing. Financing remains relatively abundant, but it is increasingly reserved for projects with contracted cash flows facing strong counterparties, secured power and strategic locations.

The debt market bonanza for data centers began in earnest on 10/16/25, when a Meta-backed entity called “Beignet Investor” priced $27.3bn of A+ rated bonds. Beignet is an entity 80%/20% owned by Blue Owl/Meta to develop the Hyperion data center for Meta in Richland Parish, LA. The bonds mature in 2049 and currently trade at a price/yield of $97.8/6.9%, only slightly higher than the yield at pricing of 6.6%. (Bloomberg, 10/16/2025)

Fast forward to today, and the most recent data point also comes from a Meta project. On 7/27/26, Sopaipilla Investor LLC priced $12.6bn of A+/AA- rated bonds maturing in 2048, to fund a data center near El Paso, TX to be owned 80%/20% by BlackRock/Meta. At issue, this bond yielded 7.5%, almost 100bp more expensive than the Beignet deal from 2025. However, this bond has traded well and is currently quoted $104.7/7.1%. To us, this is a strong confirmatory data point that the credit markets are still willing to fund data center projects at reasonable capital costs, so long as they are backed by contracts with high investment grade counterparties. In short, the investment grade debt markets are still open to data center projects, and, although the cost of debt has increased by ~50bp, we do not view this as a material move. (Bloomberg, 7/27/2026)

The corporate high yield market has, not surprisingly, been less resilient. On 4/9/26, data center bellwether CoreWeave priced a $2.75bn sr unsecured bond (B1/B) at a 9.75% yield. These bonds currently trade at $92/11.9%, which, in our view, suggests the unsecured market is currently closed. The bonds, however, have bounced meaningfully off lows of $86/13.6% on 7/29. We view high yield debt, however, as only a secondary financing source for data centers. (Bloomberg, 4/9/2026)

Despite our view that debt markets remain open for strong data center projects, we must acknowledge that underwriting standards have changed slightly. Two years ago, when the data center industry roughly began its meteoric growth, lenders evaluated projects primarily on location, sponsor quality, leverage, and tenant strength. Today, electricity has become just as important as any “traditional” credit metric, with projects having guaranteed utility capacity routinely commanding better financing terms.

Another key evolution in underwriting is the increasing importance of tenant quality. Long-term leases with hyperscalers such as Microsoft, Amazon, Google, and Oracle fundamentally change the risk profile of a project. These arrangements often transform data centers into infrastructure-like assets with predictable cash flows, lower default risk, and more stable residual values. As we mentioned, the unsecured bond markets for infrastructure providers such as CoreWeave have windows of being open and shut. The secured bond market for projects “wrapped” in IG hyperscaler credits has remained essentially continuously open.

What are the Risks?

Technology obsolescence remains a meaningful fear, particularly regarding future chip architectures and cooling technologies. Tenant concentration is another concern, as many projects rely heavily upon a single hyperscale customer. Refinancing risk may also become more important if interest rates remain elevated while construction timelines extend. And, most importantly, investors continue to debate whether current AI demand projections ultimately justify the unprecedented capital expenditures now underway.

YTD Return by Private Market Sector