The Hidden Lending Boom: Why Regulators Are Stress-Testing Private Credit

The Hidden Lending Boom: Why Regulators Are Stress-Testing Private Credit

One of the fastest-growing parts of global finance is not located inside traditional banks.

It is known as private credit: lending provided by investment funds, asset managers, insurers and other non-bank financial institutions rather than by ordinary commercial banks.

For years, private credit has been presented as a useful alternative to traditional banking. Companies that cannot easily borrow from a bank or issue public bonds can turn to private lenders. Investors can earn higher returns by funding those loans. Private-credit firms can often move faster, negotiate more flexible terms and lend to businesses that banks may consider too small, too specialised or too risky.

The market has expanded rapidly.

But the growth of private credit has also raised a difficult question for regulators: what happens when a large part of corporate lending sits outside the banking system, where risks may be harder to see?

The Bank of England is now trying to answer that question.

In June 2026, the central bank announced a system-wide exploratory scenario for private markets. More than 40 firms are taking part voluntarily, including major alternative asset managers. The exercise is designed to test how private-credit funds, banks, insurers and other financial institutions might react during a severe global shock.

The scenario is deliberately harsh.

It assumes a 35% fall in equity markets, inflation rising to 7%, a 4% contraction in the British economy and higher unemployment. The shock is linked to geopolitical disruption that affects supply chains and creates wider economic stress.

The Bank of England has stressed that this is not a forecast. It is not saying that such a crisis will happen.

Instead, the central bank wants to understand how different parts of the financial system could behave if it did happen.

That distinction matters.

Stress tests are designed to reveal weak points before they turn into a real crisis. Banks have faced these types of tests for years. Regulators use them to examine whether institutions have enough capital, liquidity and resilience to survive a severe downturn.

Private markets are different.

Many private-credit funds do not operate like banks. They do not take deposits from the public in the same way. They may lend directly to businesses, bundle loans into investment products or raise money from pension funds, insurers, wealthy investors and institutions.

Because they sit outside traditional banking, they may also face different rules.

That does not automatically make private credit dangerous. In some cases, it can make financial markets more diverse and reduce pressure on banks.

But it can also create blind spots.

When banks lend money, regulators can often see detailed information about their capital levels, loan books, liquidity and exposure to risk. Private-market lending can be more opaque. Loans are often negotiated privately, not traded on public exchanges. Valuations can be less transparent. Investors may not know exactly how much risk is building across the system.

That becomes more important during a crisis.

In good economic times, private credit can look attractive. Investors receive higher returns. Companies gain access to funding. Asset managers grow quickly. Borrowers may prefer flexible loan terms over the stricter rules of a bank.

But when interest rates rise, growth slows or borrowers begin struggling, the risks can become harder to manage.

A company with a private-credit loan may have limited options if it cannot repay. Unlike a public bond, the loan may not be easily traded. Unlike a bank loan, the lender may not have the same long-term relationship or regulatory obligations. Negotiations can become complicated, especially when several funds, banks or investors are involved.

The central question is whether stress in private credit could spread beyond private credit itself.

This is what regulators call contagion.

A private-credit fund may face rising defaults. That fund may be connected to pension funds, insurers, banks or other institutional investors. If investors suddenly worry about losses, they may pull back from related markets. If banks have provided financing to private-credit firms, they may also come under pressure.

One problem can become several problems.

The Bank of England’s test is intended to examine those links.

It will look at how banks and non-bank financial institutions interact during a major downturn. It will consider whether different firms might all try to sell assets, reduce lending or demand more collateral at the same time.

That kind of behaviour can make a crisis worse.

Imagine a severe market shock. Share prices fall. Interest rates are high. Companies face weaker sales and higher costs. Some borrowers cannot meet loan payments. Investors become nervous.

A private-credit fund may try to reduce its exposure. It may stop making new loans. It may ask borrowers for stricter terms. It may sell assets if possible.

At the same time, banks may also become more cautious. They may reduce credit lines, require more collateral or limit financing for investment funds.

If both banks and private lenders pull back at once, businesses can suddenly find it much harder to borrow.

That can turn a financial shock into an economic shock.

Companies may delay hiring, cancel investment plans or cut costs. Smaller businesses may be hit particularly hard because they often have fewer financing options.

This is why the private-credit market matters even to people who have never invested in a fund or borrowed from an asset manager.

It affects whether businesses can expand, whether jobs are created and whether companies can survive difficult periods.

Private credit has grown partly because traditional banks became more regulated after the global financial crisis.

Following the 2008 crisis, banks faced tighter rules on capital, liquidity and risky lending. Those reforms were designed to make the banking system safer.

But when banks lend less in certain areas, other financial institutions often step in.

Private-credit funds filled part of that gap.

In many ways, this was a natural market response. Companies still needed financing. Investors still wanted returns. Private lenders could offer capital where banks were more cautious.

The problem is that risk may not disappear. It may simply move.

Instead of sitting on the balance sheet of a regulated bank, it may sit inside a fund, an insurer, a pension portfolio or a complex network of financing arrangements.

That is why regulators around the world are paying closer attention.

The Financial Stability Board has warned that signs of stress are emerging in private-credit markets. Regulators are concerned that limited transparency could make it difficult to understand how serious problems are until they become visible.

The Bank of England’s exercise is unusual because it brings together different parts of the system rather than looking at one institution in isolation.

A normal bank stress test asks: can this bank survive?

A system-wide test asks: what happens if everyone reacts at once?

That is a more complicated question.

Financial crises are often not caused by one firm failing. They are caused by many firms making similar decisions at the same time.

They sell assets. They reduce lending. They demand collateral. They stop trusting each other.

The result can be a sudden shortage of liquidity.

Liquidity means the ability to access cash or sell assets without major losses. In normal conditions, markets can absorb buying and selling. In stressed conditions, everyone may want cash at the same time.

That is where private markets can face challenges.

Private-credit loans are often not easy to sell quickly. They may be tied to individual companies, specific contracts or complex terms. Their value may not be updated every day in the same way as publicly traded stocks or bonds.

This can make private credit appear stable during calm periods. Prices do not move every hour because the loans are not traded every hour.

But that does not mean the underlying risk has disappeared.

If borrowers begin missing payments or economic conditions worsen, those values can change rapidly. The challenge is that the adjustment may happen later and more suddenly.

Supporters of private credit argue that this is not necessarily a weakness.

They say long-term investors do not need to react to every market movement. Pension funds and insurers often invest over many years. They can tolerate temporary volatility better than short-term traders.

They also argue that private lenders can work more closely with borrowers than public markets can. Instead of forcing a company into default immediately, a lender may restructure a loan, extend repayment terms or provide additional financing.

That flexibility can help companies survive.

Critics respond that flexibility can also delay the recognition of problems.

A weak company may continue receiving support even when its finances are deteriorating. Loan values may remain optimistic for too long. Investors may not realise how much risk exists until conditions become severe.

Both arguments contain some truth.

Private credit is not automatically safer or more dangerous than bank lending. Its risks depend on how loans are structured, who provides the money, how transparent the terms are and what happens when borrowers struggle.

The Bank of England’s stress test is important because it tries to move the debate beyond assumptions.

Instead of asking whether private credit is good or bad, regulators want evidence about how it behaves under pressure.

The results will not be available immediately. The Bank plans to share initial findings by the end of 2026, then run a second stage before publishing a final report in early 2027.

Those findings could influence future regulation.

If the test shows that private-credit markets can absorb major shocks without spreading stress, regulators may focus on improving transparency rather than imposing heavy new rules.

If it reveals serious vulnerabilities, governments may demand stronger reporting, more liquidity safeguards or closer oversight of non-bank lending.

For investors, the message is clear: higher returns often come with higher complexity.

Private credit can offer attractive income when public markets are volatile. But investors need to understand where those returns come from. A loan that pays a high interest rate may also carry a higher risk of default, weaker liquidity or more complicated restructuring.

For businesses, private credit may remain an important source of funding. Traditional banks may not always be able or willing to provide the capital needed for expansion, acquisitions or restructuring.

But businesses that rely heavily on private lenders may need to prepare for tougher conditions if markets deteriorate.

The broader lesson is that finance is changing.

Banks are no longer the only institutions that matter when economies borrow, invest and grow. Private funds, insurers, asset managers and alternative lenders are becoming more important.

That can create useful alternatives.

It can also create risks that are less visible.

The Bank of England’s stress test is an attempt to see those risks before the next crisis forces everyone to look at them.

The question is no longer whether private credit will continue growing.

It almost certainly will.

The real question is whether the financial system can handle that growth when the economic environment turns against it.