Private Credit Hit $2.7 Trillion in AUM. Here Is How the Three Core Strategies Actually Work.

Investor allocation to private credit has grown to approximately $2.7 trillion as of the end of 2025, with forecasts placing the market at $3.8 trillion by 2029, per Morgan Stanley Investment Management.¹ That growth has been fast enough that direct lending now matches the broadly syndicated loan market at $1.5 to $2 trillion in size, per Cleary Gottlieb's January 2026 outlook.² Most of the capital chasing those numbers has a limited understanding of what it is actually buying. Private credit is not one strategy. It is at least three, each with a different position in the capital stack, a different return mechanism, and a different loss profile when a borrower gets into trouble.

Direct Lending: Senior Secured, Floating Rate, Covenant-Driven

Direct lending involves private credit funds making loans directly to companies, and it dominates the asset class: according to PitchBook, it accounted for close to 60% of the total raised by private debt in 2024.³ The mechanical appeal is straightforward. These are typically first-lien, senior secured loans to sponsor-backed middle-market companies, priced at a spread over SOFR. The floating rate structure means income rises with base rates, and the senior secured position puts the lender first in the waterfall if the borrower defaults.

What determines risk at this layer is not the collateral alone but the covenant package. KBRA DLD Research and ABF Journal data show that 98% of lower-middle-market loans with borrower EBITDA below $50 million retain full financial maintenance covenant packages, while Proskauer Rose's deal data found that only 15% of direct lending transactions tracked in 2024 were covenant-lite.⁴ Covenant maintenance gives the lender an early warning signal and a renegotiation seat before a borrower slides into distress. Covenant-lite removes both. The bifurcation matters: loans originated in the tightest competitive window, roughly 2023 to 2025, are the ones most likely to carry thinner protections into any deterioration.

Combining current base rates and spreads, direct lending continues to generate high single-digit unlevered asset returns, an attractive premium relative to public credit markets, per Northleaf Capital's Q1 2026 market update.⁵ The question is whether the spread compensates for the covenant erosion embedded in recent vintages.

Mezzanine: Subordinated Position, Equity Upside, Higher Yield

Mezzanine debt sits below senior debt but ahead of equity in a liquidation. That structural subordination is the source of both the higher yield and the higher loss severity in a default scenario. Unlike conventional loans that prioritize security over returns, mezzanine debt operates in the middle ground, offering lenders yields that typically run 12% to 20% while providing borrowers with flexible, non-dilutive growth capital. The return stack usually combines a cash coupon, PIK (payment-in-kind) accrual that compounds until maturity, and warrants or equity participation rights that create an equity kicker on top of the debt yield.⁶

The cost of that yield is subordination risk. Historical loss given default for mezzanine runs 30% to 50%, compared with 10% to 30% for senior debt, while annualized default rates for the strategy have historically averaged 2% to 4%, versus 1% to 2% for senior lending. In practice, a mezzanine lender recovers roughly half of what a senior lender recovers in the same default event. Investors should not treat the 10% to 16% coupon as a sufficient proxy for total risk: recovery in default is substantially below that of senior debt. The return is real, but it is compensation for a specific and quantifiable risk, not a free upgrade.

Specialty Finance: Asset-Backed, Structurally Distinct

Private credit has expanded beyond direct lending to include asset-backed finance, infrastructure debt, real estate lending, and debt-equity hybrid capital, per Cleary Gottlieb's January 2026 analysis.² Specialty finance lends against specific asset pools rather than against a company's enterprise value: consumer receivables, equipment leases, royalty streams, data center infrastructure. Because the loan is secured by the asset itself rather than a sponsor's balance sheet, the underwriting centers on the asset's cash flow predictability and its liquidation value, not the borrower's EBITDA trajectory.

That structural distinction produces a different correlation profile. A portfolio of equipment loans secured by hard assets does not behave like a portfolio of sponsor-backed software company loans when credit conditions tighten. The return is generally lower than mezzanine but can carry higher structural protection than unsecured corporate direct lending, depending on the asset type and advance rate.

What the Default Data Actually Shows

The definitional gap in private credit default reporting is itself a risk signal. Depending on which index you read, private credit default rates in 2025 were either 9.2%, 2.46%, or less than 1%. All three numbers are accurate. They measure completely different things.⁷

Fitch's 9.2% figure comes from a portfolio of 302 companies it tracks specifically because they carry elevated credit risk, making the sample a stress indicator rather than a market-wide measure.⁸ Proskauer's Private Credit Default Index, which tracks senior-secured and unitranche loans, recorded 2.46% for Q4 2025, up from 1.84% in Q3 and 1.76% in Q2.⁹ The Cliffwater Direct Lending Index reported a 20-year average annual loss rate of 1.01% across 21,000 loans. Each number is internally consistent; none is interchangeable with the others.

The EBITDA breakdown clarifies where the stress is concentrated: companies with EBITDA under $25 million posted a 15.8% default rate in 2025, while companies with EBITDA above $100 million posted 4.0%, nearly a four-times difference based on borrower size alone.⁷ Lender selection within the asset class, and specifically whether a manager is originating to larger or smaller borrowers, matters as much as strategy selection.

The Illiquidity Premium, Net of Fees

Investors in private credit give up daily liquidity in exchange for an illiquidity premium that typically runs 200 to 400 basis points above what a comparable public credit instrument would pay, per Family Wealth Report, August 2026.¹⁰ The gross figure is real. The net figure is smaller. After adjusting for leverage, rate exposure, and mark-to-market effects, the illiquidity premium has historically delivered approximately 3% of incremental annual excess return over liquid high yield bonds; but after management fees, net excess return compresses to approximately 0.5% to 1.5%, depending on the horizon, per NISA Investment Advisors' January 2026 analysis.¹¹

From a portfolio construction standpoint, private credit returns exhibit lower correlation to public markets than many alternatives; but the illiquidity that dampens mark-to-market volatility should not be confused with actual risk reduction.¹² The volatility smoothing reflects quarterly manager-estimated marks, not the absence of credit loss. As the asset class has grown, so too has the population of borrowers, and with greater volume comes greater dispersion in credit outcomes, per Cleary Gottlieb's January 2026 analysis.² That dispersion makes manager selection the dominant variable in realized returns, not strategy selection alone.

The asset class is mature enough that sophisticated allocators are no longer asking whether to include it. The question has shifted to which layer of the capital stack, with which covenant protections, originated by which manager, at what point in the vintage cycle. Those four variables determine whether the premium is real or illusory.

Sources

Footnotes

1. Morgan Stanley Investment Management, 2025 ↩

2. Cleary Gottlieb, January 15, 2026 ↩ ↩² ↩³

3. PitchBook, cited in Creative Planning, 2026 ↩

4. KBRA DLD Research, ABF Journal, and Proskauer Rose deal data, cited in Angel Investors Network, 2026 ↩

5. Northleaf Capital, Q1 2026 Private Credit Market Update ↩

6. Ascendant Global Credit Group, 2026 ↩

7. Angel Investors Network, Private Credit Default Rates 2025, October 2026 ↩ ↩²

8. Securitas Global, citing Fitch Ratings, 2026 ↩

9. Proskauer Rose, Private Credit Default Index, January 26, 2026 ↩

10. Family Wealth Report, August 25, 2026 ↩

11. NISA Investment Advisors, January 2026 ↩

12. Certuity, Private Credit in 2026, 2026 ↩