The massive capital expenditure for AI infrastructure will not primarily come from traditional unsecured corporate credit. Instead, a specialized form of private credit known as asset-based finance (ABF) is expected to provide over $800 billion of the required $1.5 trillion in external funding.

A financial flywheel, reminiscent of the pre-2008 crisis, is fueling the AI data center boom. Demand for yield-generating securities from investors incentivizes the creation of more data center projects, decoupling the financing from the actual viability or profitability of the underlying AI technology.

The huge capital needs for AI are creating a battleground between banks and private credit firms. Blue Owl's $27B financing for Meta's data center, which paid Meta a $3B upfront fee, shows how alternative asset managers are using aggressive debt structures to win deals and challenge incumbents like JP Morgan.

Unlike the asset-light software era dominated by venture equity, the current AI and defense tech cycle is asset-heavy, requiring massive capital for hardware and infrastructure. This fundamental shift makes private credit a necessary financing tool for growth companies, forcing a mental model change away from Silicon Valley's traditional debt aversion.

Private credit has become a key enabler of the AI boom, with firms like Blue Owl financing tens of billions in data center construction for giants like Meta and Oracle. This structure allows hyperscalers to expand off-balance-sheet, effectively transferring the immense capital risk of the AI build-out from Silicon Valley tech companies to the broader Wall Street financial system.

A major segment of private credit isn't for LBOs, but large-scale financing for investment-grade companies against hard assets like data centers, pipelines, and aircraft. These customized, multi-billion dollar deals are often too complex or bespoke for public bond markets, creating a niche for direct lenders.

The current AI infrastructure build-out is structurally safer than the late-90s telecom boom. Today's spending is driven by highly-rated, cash-rich hyperscalers, whereas the telecom boom was fueled by highly leveraged, barely investment-grade companies, creating a wider and safer distribution of risk today.

The key signal for an AI bubble isn't just stock market commentary. It's the transition of data center buildouts from being funded by free cash flow to being funded by debt, particularly from private credit firms. This massive, less-visible market is the real stress test for AI's financial stability.

The financing for the next stage of AI development, particularly for data centers, will shift towards public and private credit markets. This includes unsecured, structured, and securitized debt, marking a crucial role for fixed income in enabling technological growth.