A leveraged loan is a senior secured, floating-rate loan made to a below-investment-grade company, typically to fund a buyout, acquisition, or recapitalization. The benchmark for the asset class is the Morningstar LSTA US Leveraged Loan Index, formerly the S&P/LSTA Leveraged Loan Index, which tracks a US institutional loan market that reached a record $1.55 trillion in outstandings at year-end 2025.
If you have searched for the "S&P leveraged loan primer" or the "S&P/LSTA Leveraged Loan Index," note that both names are now historical. Morningstar acquired the Leveraged Commentary & Data (LCD) business, including the loan index family, from S&P Global in a deal that closed June 1, 2022, and rebranded the indexes as Morningstar LSTA indexes effective August 29, 2022. The underlying market and mechanics are unchanged. This primer covers what leveraged loans are, how the index works, who actually owns these loans, and how high-net-worth investors can get exposure.
Key takeaways
- Leveraged loans are senior secured, floating-rate corporate loans to below-investment-grade borrowers, usually rated B or BB, sitting at the top of the capital structure.
- Since the LIBOR panels ended on June 30, 2023, US leveraged loans price at SOFR plus a credit spread, commonly in the range of 300 to 400 basis points for performing credits.
- The benchmark is the Morningstar LSTA US Leveraged Loan Index, with history back to 1997. It returned 7.00% for the 12 months ended September 30, 2025.
- Collateralized loan obligations (CLOs) are the dominant buyer, holding roughly two thirds of the institutional loan market as of mid-2025.
- Retail access runs through the BKLN ETF (0.65% expense ratio), actively managed bank-loan mutual funds, and interval funds. Each carries meaningful fee and liquidity tradeoffs.
- The big risks are credit risk in recessions, slow loan settlement, and covenant-lite documentation, which now covers roughly 91% of outstanding loans and has dragged recoveries below historical norms.
What is a leveraged loan?
A leveraged loan is a loan to a company that already carries significant debt, typically because a private equity sponsor loaded it up in a leveraged buyout. Ratings agencies generally rate these borrowers BB+ or lower, the same credit tier as high-yield bonds. What separates loans from bonds is structure, not credit quality.
Three features define the asset class:
Senior secured. Leveraged loans sit at the top of the borrower's capital structure and are secured by a first lien on the company's assets. If the company fails, loan holders get paid before bondholders and equity holders. Historically that seniority translated into materially better recoveries than unsecured high-yield bonds, though recent recoveries have weakened (more on that in the risk section).
Floating rate. Loan coupons reset periodically, usually every one or three months, at a base rate plus a fixed credit spread. Since the USD LIBOR panels ceased on June 30, 2023, that base rate is SOFR, the Secured Overnight Financing Rate. A loan quoted at SOFR + 350 pays whatever SOFR is at each reset plus 3.50 percentage points. This is why loans have near-zero duration: when the Fed hikes, loan income rises within a quarter; when the Fed cuts, income falls just as fast. Loan investors earned unusually fat coupons in 2023 and 2024 with SOFR above 5%, and that tailwind has been fading as rates come down.
Syndicated and institutionally held. A lead bank arranges the loan and sells pieces to institutional investors. Banks originate but mostly do not hold. The loans trade in an over-the-counter secondary market that set a record with $971 billion of trading volume in 2025, per LSTA data.
Leveraged loans vs high-yield bonds
| Feature | Leveraged loans | High-yield bonds |
|---|---|---|
| Position in capital structure | Senior secured, first lien | Usually senior unsecured |
| Coupon | Floating (SOFR + spread) | Fixed |
| Interest rate duration | Near zero | Typically 3 to 4 years |
| Typical ratings | BB to B | BB to CCC |
| Callability | Callable at par, often with a short soft-call period | Call protection for several years |
| Trading and settlement | OTC, settlement often takes one to several weeks | OTC, T+1 settlement |
| Historical recovery in default | Higher (secured), though eroding | Lower (unsecured) |
The rate profile is the key portfolio decision. Loans win when rates rise or stay high; fixed-coupon bonds win when rates fall. For a deeper look at how rate cycles ripple through asset classes, see our interest rates hub.
The index: from S&P/LSTA to Morningstar LSTA
The Morningstar LSTA US Leveraged Loan Index is a market-value-weighted index of US institutional leveraged loan facilities, calculated daily, with history back to 1997. It was built by S&P's Leveraged Commentary & Data unit in partnership with the Loan Syndications and Trading Association (LSTA), the loan market's trade body, and was known for decades as the S&P/LSTA Leveraged Loan Index. Morningstar bought LCD from S&P Global for up to $650 million (closed June 1, 2022) and renamed the index family that August.
Two versions matter in practice:
- The flagship Morningstar LSTA US Leveraged Loan Index covers the broad institutional market, the benchmark against which bank-loan fund managers are measured.
- The Morningstar LSTA US Leveraged Loan 100 Index tracks the 100 largest, most liquid facilities, and is the index the BKLN ETF replicates.
Per the index sponsor's data, the flagship index returned 7.00% for the 12 months ended September 30, 2025, and LSTA reported that 2025 finished with an above-average annual return driven by high coupon income, even as secondary prices softened late in the year. Index outstandings hit a record $1.55 trillion at year-end 2025, up from roughly $1.4 trillion a year earlier.
Who buys leveraged loans: CLOs and the private equity connection
Leveraged loans exist mostly because private equity exists. Buyout sponsors fund the debt portion of LBOs in this market, which makes loan supply a direct function of deal activity. If you follow private equity, the loan market is where the leverage in "leveraged buyout" actually lives.
On the demand side, the dominant buyer is the collateralized loan obligation. A CLO is a securitization vehicle that buys a diversified pool of 200 to 400 leveraged loans and funds itself by issuing tranches of rated debt, from AAA down to equity. Per Invesco and PineBridge data from mid-2025, CLOs held roughly 64% to 66% of the institutional loan market, up from 57% in early 2023, and bought 61% of new-issue loans in 2024. Bank-loan mutual funds, ETFs, insurers, and pensions make up the rest.
This matters for two reasons. First, CLO formation drives loan pricing: heavy CLO issuance (as in 2024 and 2025) supports loan prices almost regardless of retail fund flows. Second, CLOs are locked-up vehicles that cannot be forced to sell in a panic, which has historically made the loan market's investor base stickier than the high-yield bond market's.
Private credit context. The syndicated loan market now competes head-on with private credit, the roughly $1.7 trillion (Preqin, 2025) universe of directly originated loans held by nonbank lenders. Direct lenders and syndicated desks fight over the same sponsor-backed borrowers, and deals now move between the two markets depending on where pricing is better. For HNW investors the practical distinction is liquidity: syndicated loans trade daily and can be held in funds with daily NAVs; private credit lives in BDCs and drawdown funds with limited or no liquidity.
How HNW investors access leveraged loans
There is no practical way to buy individual leveraged loans as an individual; minimum allocations and settlement mechanics make it an institutional market. Access runs through funds:
| Vehicle | Example | Cost | Liquidity | Notes |
|---|---|---|---|---|
| Index ETF | Invesco Senior Loan ETF (BKLN) | 0.65% net expense ratio | Intraday | Tracks the Morningstar LSTA US Leveraged Loan 100; about $7 billion AUM; launched 2011 |
| Active ETFs | Several bank-loan and senior-loan ETFs from major managers | Roughly 0.6% to 0.9% | Intraday | Active selection; compare fees and credit quality tilt |
| Bank-loan mutual funds | Open-end floating-rate funds | Often 0.7% to 1.1% | Daily NAV | The oldest retail wrapper; watch for loads on advisor-sold share classes |
| Interval funds | Credit interval funds holding loans, CLO debt, and private credit | Frequently 1.5%+ all-in | Quarterly repurchases, typically capped near 5% of assets | Higher yield potential, but you cannot exit on demand |
| CLO tranche ETFs | AAA and BBB CLO ETFs | Roughly 0.2% to 0.5% | Intraday | Exposure to CLO debt rather than loans directly; AAA tranches have never defaulted through 2008 and 2020 |
A structural caution on daily-liquidity wrappers: ETFs and mutual funds promise same-day or T+1 exits while their underlying loans settle far slower. That mismatch is manageable in normal markets and gets tested in stressed ones, which is one reason BKLN and peers can trade at discounts to NAV during selloffs.
Investors comparing loans against other yield-oriented alternatives may also want to read our analysis of hedge fund performance vs the S&P 500, since bank loans, hedged credit, and private credit often compete for the same sleeve of an HNW portfolio.
Risks
Credit risk. These are junk-rated borrowers, mostly single-B. In recessions, defaults cluster. The conventional payment default rate ended 2025 at a benign 1.2% by amount, but that headline understates stress: per PitchBook LCD, liability management exercises (out-of-court distressed exchanges where lenders accept new debt worth less than they were owed) now account for about two thirds of default activity by issuer count. Counting LMEs, the effective default rate has run meaningfully higher than the headline number.
Covenant-lite documentation. Roughly 91% of outstanding US leveraged loans were covenant-lite at year-end 2024, and about 93% of 2024 new issuance. Cov-lite loans lack the maintenance covenants that once let lenders intervene early when a borrower deteriorated. The measurable consequence is lower recoveries: PitchBook LCD data puts recent recoveries on cov-lite first-lien loans around 65 to 67 cents on the dollar, versus 75 cents or better on covenanted loans, and well below the long-run 70 to 80 cent assumption many allocators still use. "Senior secured" means less than it did in 2007.
Settlement and liquidity risk. Loan trades are not securities trades. Par loan settlements routinely take a week or more, and distressed trades take far longer, versus T+1 for bonds and stocks. Daily-liquidity funds bridge that gap with cash buffers, credit lines, and bond sleeves, all of which cost return and can strain in a redemption wave.
Rate risk in reverse. The floating-rate feature that made loans a star of 2022 to 2024 works against them in a cutting cycle. Every Fed cut directly reduces loan coupons. Falling rates also squeeze the interest coverage of borrowers less than rising rates did, so this is a return headwind more than a credit tailwind.
Callability. Borrowers can typically repay or reprice loans at par with minimal penalty. In strong markets, issuers refinance their spreads down, which caps price upside above par.
Bottom line
Leveraged loans are a genuine institutional asset class with a real yield premium, a credible benchmark in the Morningstar LSTA index family, and cheap beta available through BKLN at 0.65%. They earn their place as a rate hedge within a credit allocation. But the market has migrated from "senior secured with covenants" to "senior secured in name," recoveries are trending down, and the highest-yielding access vehicles lock up your capital. Size the position as junk credit with low duration, not as a bond substitute, and prefer liquid wrappers unless you are being clearly paid for the lockup.
Sources: Morningstar Indexes and Morningstar press releases (2022 LCD acquisition and index rebrand; index returns through September 30, 2025); LSTA Morningstar LSTA Leveraged Loan Index analyses (2025, including December 2025 wrap reporting $1.55 trillion outstandings and record $971 billion secondary volume); Invesco and PineBridge CLO market data (2025); PitchBook LCD covenant-lite, default, and recovery research (2024 to 2025); Preqin private credit AUM estimates (2025); Invesco BKLN fund documents (2025). Market figures are as of the dates indicated and change over time. This article is for information only and is not investment advice.