Apollo vs. Ares vs. Blackstone: Comparing the Titans of Private Credit

They get lumped together as the giants of private credit, but Apollo, Ares and Blackstone are three different bets defined by where their money comes from. Treating them as interchangeable misreads the risk.

Key takeaways

• The three are the giants of private credit, but they are three different bets, not one. Treating them as interchangeable is the core error this comparison exists to correct.
• Apollo is the largest in credit ($749.2 billion, 31 Dec 2025) and the most insurance-funded, with an investment-grade and asset-backed lean and a 16-platform origination machine.
• The flagship retail funds (ADS, ARCC, BCRED) are US-domiciled, and the non-traded ones are usually adviser-gated and off-limits to a non-US retail investor. If you are outside the US, the route in is each firm’s European vehicle: Apollo’s Luxembourg ELTIFs, Ares’ AESIF ELTIF, or Blackstone’s ECRED, often through a local feeder.
• Figures move every quarter, and the Blackstone credit figure here is a quarter behind the other two. Verify against the latest filing before you rely on any single number.

Three firms sit at the top of private credit, and the easy mistake is to treat them as one trade. Apollo, Ares and Blackstone each run a credit book bigger than most national pension systems, and the headline numbers make them look interchangeable: enormous, fast-growing, hungry for the same corporate loans. They are not interchangeable. Where a firm sources its capital, and what it does with that money, changes the risk you are actually buying. Set side by side on the figures that matter, the three turn out to be three separate bets, not one.

Private credit is the reason these firms have grown so fast. Direct lending, where a fund lends straight to a company instead of the company borrowing from a bank or issuing a bond, has swelled into a market that Preqin sizes at roughly $1.7 trillion in assets under management, on a narrow direct-lending-heavy definition. Read broadly, to include the wider universe of non-bank corporate lending, Morgan Stanley puts the figure closer to $3 trillion at the start of 2025. The gap is a definitional argument, not a contradiction, and it is worth saying which one you mean before you compare anyone. Both agree on direction: this is one of the fastest-growing corners of finance, and the three firms below have captured much of the growth.

For the wider context on the asset class, our guide to private credit covers the mechanics, and our companion piece on the largest private credit firms sets the full league table.

The scoreboard: credit AUM and scale

Start with size, because scale in private credit is not vanity. A bigger book means a firm can write a larger single cheque, hold more of a loan rather than syndicating it out, and keep lending through a downturn when smaller managers are pulling back. It also means more fee revenue to reinvest in origination. Here is where the three stood at the most recent reporting.

Apollo is the largest of the trio in credit. Credit is its single biggest asset-management strategy, at $749.2 billion as of 31 December 2025, out of roughly $938 billion in total firm assets (Apollo credit strategy page; Apollo Q4 and full-year 2025 results). That figure is deliberately broad, spanning direct lending, asset-backed finance, multi-asset credit and opportunistic strategies, and it includes the money Apollo manages for its own insurance arm.

Blackstone comes next in credit despite being the largest of the three overall. Its Credit and Insurance unit, BXCI, held around $432 billion, up 22% year on year, as of 30 September 2025 (Blackstone Q3 2025 filing). Blackstone as a firm crossed $1.27 trillion in total AUM at the end of 2025 (Blackstone Q4 2025 results), so credit is a large but not dominant slice of a much wider empire that spans property, private equity and infrastructure.

Ares is the smallest of the three by total assets but the most credit-concentrated. Its Credit Group ran $406.9 billion as of 31 December 2025, across more than 305 funds, and credit is comfortably the largest part of the firm (Ares 2025 annual report; Ares Q4 and full-year 2025 results). Against total firm AUM of roughly $623 billion at year end, credit is the core business rather than one wing of a diversified house.

One honest caveat before the table: figures move every quarter, so verify before you rely on them. The Apollo and Ares credit numbers above are both as of 31 December 2025. The confirmed Blackstone BXCI figure is a quarter earlier, 30 September 2025, so on a like-for-like basis its year-end number will be a little higher than the $432 billion shown.

Apollo, Ares, Blackstone: the comparison table

Everything above assembled into one view, each figure sourced. This is the part worth keeping.

*Figures move quarterly. Verify against the latest filing before acting. Sterling and euro figures are indicative conversions at roughly £0.79 and €0.92 to the dollar, for scale only. Source keys: [1] Apollo, [2] Ares, [3] Blackstone BXCI, [4] Blackstone firm, [5] ADS 10-Q, [6] ARCC, [7] BCRED, [8] Apollo origination page. Full URLs in Sources below.*

Why they are three different bets

The table shows they are not the same size. The more useful point is that they are not the same shape.

Apollo: lending funded by insurance

Apollo’s distinguishing feature is where its money comes from. Through its retirement services arm, Athene, Apollo has a large and stable pool of insurance capital to deploy. That capital does not run for the exits when markets wobble, which lets Apollo lend for longer and lean into investment-grade and asset-backed credit rather than chasing higher-risk corporate loans. That is a genuinely different posture from a manager funded mainly by investors who can ask for their money back.

The second piece is origination. Apollo describes an ecosystem of 16 platform businesses that source loans directly, rather than buying them from banks (Apollo origination page). In 2025 that machine originated over $300 billion of assets, most of the debt investment-grade, priced at a spread Apollo puts at around 350 basis points over Treasuries on its own book. Because so much of Apollo’s credit sits inside the insurance business, the flagship retail fund, Apollo Debt Solutions BDC, is a smaller window onto the whole. ADS held $24.6 billion in total assets and $14.3 billion in net assets as of 30 September 2025 (ADS 10-Q), sizeable but a fraction of the group’s credit reach. Buy Apollo credit and you are mostly buying an insurance-funded, quality-tilted balance sheet, not a pure high-yield lender.

Ares: the direct-lending specialist

Ares is the closest of the three to a pure private-credit house, and direct lending to mid-market companies is what it does best. Its flagship, Ares Capital Corporation (ARCC), is the largest publicly traded business development company in the United States, with $31.2 billion in total assets and a portfolio of $29.5 billion spread across 603 companies as of 31 December 2025 (ARCC 10-Q, 30 Sep 2025). ARCC reported a net asset value of $19.94 per share at year end and a return on equity above 10% for the year, and it paid $1.92 per share in dividends across 2025 (Ares Q4 2025 press release).

The strength here is self-origination and a long track record in one discipline. Ares built its franchise financing companies that are too small for the bond market and too specialised for a plain bank loan, and it was doing it long before private credit was fashionable. The concentration cuts both ways: an investor gets a focused, well-understood exposure to mid-market corporate lending, without the insurance overlay or the property and infrastructure sprawl of the other two. If your view is that mid-market direct lending is the part of private credit worth owning, Ares is the most direct expression of it.

Blackstone: scale as the strategy

Blackstone’s advantage is that it is Blackstone. As one of the largest alternative managers in the world, it can write cheques few competitors can match and join the biggest, most complex financings. Its credit book is deliberately diversified: corporate credit, liquid credit, asset-based and infrastructure credit, and property credit all sit under BXCI, which lets it act as a single lender across a borrower’s whole capital structure.

The flagship, Blackstone Private Credit Fund (BCRED), is the clearest illustration of scale. It held $82.2 billion in investments and $47.6 billion in net asset value at the end of 2025, and raised $14.5 billion during the year, its strongest fundraising since inception (BCRED Q3 2025 update; BCRED overview). BCRED reports an annualised return of 9.9% for its Class I shares since its January 2021 launch, with a distribution rate around 9.7% as of December 2025. Those are the fund’s own reported figures and no guarantee of what comes next, but they show why it has pulled in capital so quickly. Buy Blackstone credit and you are buying reach and one-stop breadth, not the specialist focus of Ares or the insurance engine of Apollo.

What the differences mean for the money

The strategy tilts are not decoration. They change the risk. Apollo’s insurance funding and investment-grade lean should, in theory, make its credit book steadier when markets turn, and the trade for that steadiness is giving up some of the yield that riskier lending throws off. Ares gives a cleaner, higher-yielding exposure to one risk: mid-market borrowers who cannot easily refinance elsewhere. That is also the exposure that suffers most if defaults rise, so the concentration is a feature and a vulnerability at once. Blackstone spreads its credit risk across many types of lending, but in doing so ties the credit arm to the fortunes of a very large, property-heavy parent.

Fees follow the format. The retail BDCs cluster around similar terms: Apollo’s ADS and Blackstone’s BCRED both charge a 1.25% management fee on net assets and a 12.5% income incentive fee over a 5% hurdle, while ARCC’s institutional-heritage structure runs a 1.5% management fee and a 20% income incentive fee over a 7% annualised hurdle (ADS prospectus; BCRED and ARCC terms via fund disclosures, indicative, confirm against the current prospectus). The ARCC structure looks dearer on the incentive fee, but a higher hurdle means the manager earns it only above a higher bar, so the headline percentage does not tell the whole story.

This is not a recommendation to hold one over another. It is a point about what each firm actually is. The reader decides which of these risks they want to own. What they should not do is assume the three are the same risk wearing different logos, because they are not.

How you actually access them if you are not in the US

One thing the table hides: the three flagship retail vehicles above are all US-domiciled. ADS, ARCC and BCRED are American funds built for American distribution, and the non-traded ones (ADS, BCRED) are typically sold through US financial advisers with suitability and accreditation gates attached. For a retail investor in London, Frankfurt, Dubai or Singapore, that usually means they are off-limits directly. ARCC is the exception in kind, being a listed BDC that trades on the Nasdaq, so an international brokerage account can often buy the shares like any other US-listed stock, subject to your broker’s access and your own tax position on US-source income.

So what does someone outside the US do? All three firms have built parallel European vehicles for exactly this reader. These are mostly ELTIFs, European Long-Term Investment Funds, a regulated wrapper (revised under the ELTIF 2.0 rules) designed to let ordinary investors hold long-dated private assets. Some are also reachable through the UK’s Long-Term Asset Fund (LTAF) regime, the British equivalent aimed at pension and wealth platforms.

• Apollo runs a range of evergreen ELTIFs under its Luxembourg-domiciled Apollo Private Markets Umbrella SICAV, authorised by Luxembourg’s regulator (the CSSF). The credit-focused one is the Apollo European Private Credit ELTIF, lending to European upper-mid-market companies; there is also a global diversified credit ELTIF. Apollo states these are available to investors in Europe, Asia and Latin America, subject to local law and eligibility (Apollo ELTIF launch, Sep 2025).
• Ares offers the Ares European Strategic Income ELTIF (AESIF), a semi-liquid vehicle that invests in directly originated, senior-secured, floating-rate loans to European companies, drawing on the same Ares Credit Group engine behind ARCC (Ares AESIF ELTIF).
• Blackstone runs the Blackstone European Private Credit Fund, known as ECRED, a Luxembourg SICAV that is the European sibling of BCRED. In several countries it is reached through a local feeder fund: in Finland, for example, S-Bank built a feeder that channels its clients’ money into the Blackstone vehicle (ECRED).

The practical upshot: the strategy comparison above still holds, because the European vehicles run the same house strategies as the US flagships. What changes is the wrapper, the minimum, the fee schedule and the liquidity terms, which differ by fund and by country. Two more points that are true wherever you live. First, minimums on these semi-liquid vehicles are often higher than the roughly $2,500 entry on a US non-traded BDC, and access is usually through a wealth platform or private bank rather than a retail brokerage. Second, tax is where jurisdiction bites hardest: a fund’s own home-country treatment (Luxembourg withholding, US withholding on any US-source income inside a portfolio) is a property of the fund, but how the income and gains are taxed in your hands depends entirely on where you are resident. That is the one part of this you should take to a local adviser rather than read off a table. Sterling and euro sums are shown alongside dollars in the comparison below purely for scale; the funds themselves are priced in their own base currency, and a non-dollar investor also carries the currency move between their money and the fund.

FAQs

Which firm is the biggest in private credit?

By credit assets under management, Apollo, at $749.2 billion as of 31 December 2025. Blackstone is the biggest firm overall (~$1.27 trillion total AUM), but its credit arm (~$432 billion, 30 September 2025) is smaller than Apollo’s. Ares runs the most credit-concentrated book, at $406.9 billion.

What is the difference between their flagship funds?

Apollo Debt Solutions (ADS) is an insurance-adjacent, quality-tilted BDC and a small window onto Apollo’s larger credit book. Ares Capital Corporation (ARCC) is the largest listed US BDC, a focused mid-market direct-lending vehicle. Blackstone Private Credit Fund (BCRED) is one of the largest non-traded BDCs, built for scale and breadth.

Is Apollo, Ares or Blackstone the safest?

No firm is inherently safe; each carries a different risk. Apollo aims for steadiness through insurance funding, Ares gives concentrated mid-market exposure, and Blackstone spreads risk across credit types while tying the arm to a large parent. Past performance and reported yields are not a guide to future returns.

Can I invest in these funds if I am not in the US?

The US flagships (ADS, ARCC, BCRED) are American funds, and the non-traded ones are usually sold only through US advisers, so they are typically off-limits to a non-US retail investor. The route in from elsewhere is each firm’s European vehicle: Apollo’s Luxembourg ELTIFs (including the Apollo European Private Credit ELTIF), Ares’ AESIF ELTIF, or Blackstone’s ECRED, often accessed through a local feeder fund on a wealth platform or via a private bank. ARCC is the one that trades as a listed US stock, so an international broker can sometimes buy it directly. Availability, minimums and fees vary by country, and how you are taxed depends on where you are resident, so check locally before acting.

How reliable are these AUM figures?

They come from each firm’s 2025 filings, but change every quarter. The Apollo and Ares figures are as of 31 December 2025; the Blackstone credit figure is as of 30 September 2025. Check the latest filing before relying on any of them.

*This article is general information about the alternative-investment market, not personal financial advice. It does not recommend buying or selling any fund or security. Consider your own circumstances and take professional advice before investing.*

Next read

• Private credit: how the asset class works
• The largest private credit firms