Private credit investing explained — BDCs, interval funds, and the 2026 stress test

The US private credit market has grown to roughly $1.3 trillion by one widely cited estimate, filling a lending gap left by banks pulling back from middle-market business financing. Market size estimates vary meaningfully by source and methodology — some 2026 research puts the broader global private credit market at closer to $2–2.1 trillion currently, with figures like $2.6 trillion representing longer-term projections. Treat any single market-size figure as an estimate, not a precise count. Retail access has expanded rapidly through BDCs, interval funds, and evergreen structures — but early 2026 delivered a real-world stress test: popular evergreen direct lending vehicles capped redemptions when withdrawal requests surged, driven partly by fears that AI could disrupt the software companies many of these loans were made to. Here's what private credit actually is, how to access it, what it really yields after fees, and what that stress episode revealed. A note before diving in: every market-size figure in this piece is a model-based industry estimate, not a precise official count — different research providers arrive at meaningfully different numbers depending on methodology and scope.

What private credit is

Private credit — also called direct lending — refers to loans made directly to companies by non-bank lenders, rather than through public bond markets or traditional bank financing. These loans are privately negotiated, don't trade on public markets, and are typically held to maturity by the lending fund rather than bought and sold like a bond. Two structures come up repeatedly in this guide: a BDC (Business Development Company) is a regulated closed-end fund structure specifically created to channel capital into private US businesses — some trade publicly like a stock, others don't. An interval fund is a fund that offers to buy back a limited percentage of its shares from investors at set intervals (often quarterly), rather than offering daily liquidity like a mutual fund or ETF.

Direct lending is the largest and most established segment of private credit, but the category also includes asset-based finance (loans secured by specific assets like equipment or receivables), mezzanine debt (subordinated loans that sit between senior debt and equity), and opportunistic or distressed credit strategies.

Why private credit exists — the bank lending gap

Private credit's growth is directly tied to regulatory changes following the 2008 financial crisis. Stricter capital requirements made it more expensive for banks to hold certain types of loans on their balance sheets — particularly loans to middle-market companies (roughly $10 million to $1 billion in revenue) that are too small for public bond markets but too large or complex for traditional small-business lending. Regulatory constraints on US banks created a gap in financing, especially for middle-market firms, that private credit filled.

Non-bank lenders — private credit funds, BDCs, and specialized asset managers — stepped into that gap, offering borrowers faster execution and more flexible terms than banks typically provide, in exchange for higher yields than traditional bank loans or public bonds carry.

How retail investors can access private credit

What private credit actually yields — after fees

Headline gross yields on private credit funds often look attractive — frequently in the 10-12%+ range. But fees take a meaningful bite before that yield reaches investors:

The gap between gross and net yield is substantial — roughly 2.5 to 3.5 percentage points in this specific illustrative example. Private credit vehicles show wide dispersion in management fees, incentive structures, leverage, and expense loads — don't assume any given fund lands in this exact 8.5–9.5% range; the point is the mechanism, not a universal number. Always compare net-of-fee returns across funds, not the headline gross yield — two funds advertising similar gross yields can deliver meaningfully different results to investors depending on their fee structure.

Historically, listed BDCs have offered notably high dividend yields — in 2025, the top eight constituents in the S&P BDC Index offered yields ranging from approximately 6% to 16%, per S&P Dow Jones Indices data — reflecting the wide range of risk and leverage across different BDC strategies. A higher stated or historical yield does not necessarily translate to a higher realized return once defaults, fee drag, and potential redemption gating are factored in.

The early 2026 stress test

Private credit's growth story ran largely uninterrupted through several years of strong performance — but early 2026 delivered its first significant real-world test of the liquidity promises made by evergreen and semi-liquid structures. Popular evergreen direct lending vehicles capped redemptions, leaving a queue of investors waiting to cash out, amid a broader surge in redemption requests from investors in these strategies. Concerns about AI's potential to disrupt the business models of some underlying software borrowers were cited as one contributor to the anxiety driving redemptions — though this should be understood as one factor among several, not established as the sole or primary cause.

The episode pushed previously fine-print details — liquidity terms, valuation methodology, and underlying portfolio quality — into mainstream financial headlines. It's worth being precise about what this episode actually demonstrates. This was a liquidity mismatch stress test, not a credit-collapse event — the underlying loans weren't reported as broadly defaulting; the strain was on redemption mechanics, not loan performance. The lesson is that a mismatch existed between investor expectations of liquidity and the underlying illiquidity of the loans backing these vehicles — especially in structures marketed around periodic redemption windows. "Semi-liquid" structures can behave a lot like fully illiquid ones exactly when investors most want to exit, which is the core lesson worth internalizing regardless of how any single fund's situation ultimately resolves.

Separately, payment-in-kind (PIK) usage — where a borrower pays interest with additional debt rather than cash — has risen notably in recent years. Public BDCs now receive an average of approximately 8% of their investment income via PIK rather than cash, according to industry tracking of BDC disclosures. Elevated PIK usage can be a signal of borrower stress, since it often means a company doesn't have enough cash flow to make full cash interest payments, even though it doesn't show up as a default in headline statistics.

Risks beyond the headline yield

• Liquidity risk. As the early 2026 episode demonstrated, "semi-liquid" structures can gate redemptions during exactly the periods investors most want to exit. Treat capital allocated here as illiquid, regardless of the periodic redemption feature advertised.
• Valuation risk. Private loans aren't marked to a public market price daily — NAV is based on periodic manager or third-party valuations of illiquid assets, which can lag real-world credit deterioration, similar to the NAV lag risk in evergreen funds generally.
• True default rate underestimation. As noted above, the gap between headline default rates (below 2%) and true default rates including liability management exercises (approaching 5%) means published default statistics may understate actual credit stress in a portfolio.
• Fee drag. As shown in the yield breakdown above, management and incentive fees can consume a quarter or more of gross yield — always evaluate net-of-fee returns, not headline gross yields.
• Interest rate sensitivity. Many private credit loans carry floating rates, meaning yields rise with rates — beneficial in a rising-rate environment but a headwind if rates decline, and floating-rate structures also mean borrower debt service costs rise with rates, which can increase borrower stress during periods of elevated rates.
• Concentration and manager selection risk. Unlike broadly diversified public bond funds, private credit fund performance depends heavily on a specific manager's underwriting discipline and sector concentration. Manager selection matters considerably more here than in most public fixed income investing.

Frequently asked questions

Is private credit riskier than high-yield bonds?

They're related but structurally different asset classes. Both involve lending to below-investment-grade borrowers, but private credit loans are privately negotiated and illiquid, while high-yield bonds trade on public markets with daily price discovery. Private credit lenders often negotiate stronger covenants and closer monitoring relationships with borrowers than public bondholders typically get, which can be a genuine credit-quality advantage — but the illiquidity means problems may take longer to surface in valuations, and you can't exit quickly if you become concerned about a specific credit or the broader market.

Do I need to be an accredited investor to invest in private credit?

It depends on the structure. Listed BDCs (like ARCC, MAIN, FSK) are publicly traded and available to any investor with no accreditation requirement — the most accessible entry point. Many interval funds are also SEC-registered and open to non-accredited investors. Non-traded BDCs and true evergreen private credit funds typically require accredited investor status (generally $200,000 annual income, or $300,000 joint, or $1 million net worth excluding primary residence, per SEC rules). Always verify the specific fund's eligibility requirements in its prospectus rather than assuming based on the general category.

How is a BDC different from a private credit fund?

A Business Development Company (BDC) is a specific regulatory structure created by Congress in 1980 under the Small Business Investment Incentive Act, designed to channel capital into private US businesses. BDCs are a type of closed-end fund with specific regulatory requirements, including distributing most of their income to shareholders. Some BDCs are publicly listed and trade daily; others are non-traded. "Private credit fund" is a broader term that can refer to BDCs, but also includes interval funds, evergreen structures, and traditional closed-end drawdown funds that aren't organized as BDCs at all.

What does the early 2026 redemption gating mean for someone considering private credit now?

It's a useful, concrete reminder that liquidity terms matter and should be read carefully before investing, not treated as a formality. It doesn't necessarily mean private credit as an asset class is fundamentally broken — the underlying loans in most gated funds were not in default, and gating is a liquidity management tool, not evidence of asset failure. But it does mean investors should size private credit allocations as genuinely long-term, illiquid capital, verify a specific fund's redemption history and gating provisions before investing, and not rely on "evergreen" or "semi-liquid" marketing language as a substitute for actual liquidity.

How does private credit fit into a diversified portfolio?

Private credit is generally considered part of the fixed income or alternatives sleeve of a portfolio, offering a yield premium over public bonds in exchange for illiquidity and credit risk. Given the illiquidity and concentration risks discussed above, most financial advisors suggest keeping private credit and other illiquid alternatives to a modest percentage of total investable assets — commonly cited ranges are in the single digits to low double digits of a portfolio, though the right allocation depends heavily on individual liquidity needs, time horizon, and overall net worth. This isn't a substitute for a core diversified bond allocation, but a complementary satellite position for investors who can genuinely tolerate the illiquidity.