How Large Is Private Credit’s Total Addressable Market, Really?

Key takeaways

  • Private credit’s addressable market is big, but not as big as you may have heard: Popular estimates often lump together every loan that could theoretically be refinanced privately, overstating how much business private lenders are likely to capture versus banks and public markets.
  • Where private credit really has an edge is asset-based finance: When loans are backed by tangible cash flows such as mortgages, auto loans, equipment leases, or aircraft, banks are increasingly willing to step back, and private lenders may be well-positioned to step in.
  • A disciplined estimate puts the long-run opportunity at $6 trillion – $8 trillion: That figure strips out loans already packaged into securities, held by insurance companies, or owned by existing private funds, leaving the slice that could genuinely shift from traditional lenders to private credit over time.

One of the most debated topics in private credit is the size of the investment opportunity – or, in industry parlance, the total addressable market (TAM). But the way TAM is typically framed can be misleading. Properly defined, the concept applies mainly to asset-based finance (ABF) – and even then, only when it’s applied rigorously. Across the rest of private markets, TAM is a poor fit. Under a reasonable set of assumptions, which we detail below, we estimate the long-run opportunity at roughly $6 trillion – $8 trillion.

Imprecise definitions and gray areas complicate TAM estimates

The most common misapplication of the TAM label appears in direct lending, where the opportunity set is often defined as the combined size of the broadly syndicated loan (BSL) and high yield (HY) bond markets. We view this as a clear categorical error: It conflates current stocks with substitution flows, implicitly assuming borrowers are indifferent between public and private channels and that private capital can contest the entire outstanding balance.

However, it is actually the flow of new financing demand from borrowers willing to pay for certainty of execution, confidentiality, and flexibility that matters. Under normal conditions, large, established issuers – where most of the supposedly addressable dollars sit – appear to have little incentive to raise capital from private markets.

Of course, the substitution flow from public to private markets isn’t zero, and jumbo direct loans from single large lenders can, at times, displace syndicated deals (BSLs) from groups of lenders. A better way to frame this within the TAM debate is as a contested boundary between public and private markets, a boundary whose width changes with market conditions.

By contrast, less precise TAM definitions treat that boundary as fixed and fully capturable. By the same logic, one could argue that small businesses and public companies alike could represent the TAM for private equity. This is clearly incorrect. For direct lending, the relevant metric was never the TAM, but rather the marginal penetration of different lenders (and types of lenders) into the wider market, along with the gradual back-and-forth drift of this overlapping boundary.

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