Key takeaways
- Arini sold $800 million in debt amid mounting losses
- Its flagship fund lost over 20% during 2026
- Bank margin calls forced sales of liquid investments
In just five years, Hamza Lemssouguer built Arini Capital Management into a $22 billion investment firm. But in October 2026, one of its biggest strategies was struggling badly enough that the company began selling hundreds of millions of dollars in debt investments.
According to an October 30 Wall Street Journal investigation, Arini sold approximately $800 million in debt holdings over several weeks, partly to meet margin calls from banks. Its roughly $7 billion flagship fund had lost more than 20% during 2026 by mid-October.
The contradiction raises an important question: how can a financial firm managing $22 billion find itself selling assets to satisfy its lenders?
How Arini Built a $22 Billion Investment Business
Lemssouguer founded Arini in 2021 after working as a credit trader at Credit Suisse. His strategy centered on distressed debt, particularly bonds issued by financially troubled companies that could recover in value if their businesses stabilized.
The appeal is straightforward. A bond trading at 60 cents on the dollar can generate a substantial return if its issuer ultimately repays the full amount. But investors can also lose heavily if the company restructures its debt or defaults.
Arini expanded rapidly, attracting institutional investors and developing several investment strategies beyond its original hedge fund.
In an October 21 announcement, the company confirmed $22 billion in assets under management as of August 31. It also announced a new direct-lending fund targeting more than $4 billion in deployment, including anticipated borrowing.
However, those $22 billion represented assets managed across different strategies, not cash available to rescue one struggling portfolio.
The flagship fund's problems emerged from investments in distressed telecommunications companies, including Altice International, Optimum Communications, Virgin Media and Brightspeed.
Other exposures included Aston Martin and packaging company Multi-Color. Several of these businesses faced substantial debt obligations and uncertain financial prospects.
By September, the flagship strategy had lost approximately 15.7% for the year. Losses deepened in October as European corporate credit markets weakened.
Why Banks Forced Arini to Sell Investments
The immediate pressure came from margin calls.
Hedge funds frequently use borrowed money and derivatives to increase their investment exposure. Banks providing financing or derivatives contracts require collateral to protect themselves against potential losses.
When market movements reduce the value of positions or increase a bank's exposure, the bank may demand additional collateral. If the fund cannot provide enough cash, it must reduce positions or sell other investments.
Arini reportedly faced margin requirements connected to credit-default-swap indexes and other leveraged trades. These instruments can provide exposure to changes in corporate credit risk without requiring investors to purchase every underlying bond.
The mechanism resembles the credit-default swaps famously used by Michael Burry during the 2008 financial crisis, although the underlying trades and outcomes differ.
For Arini, the problem was liquidity.
Distressed corporate debt can become difficult to sell when investors fear defaults or restructuring. Consequently, a fund may sell relatively healthy and liquid bonds because buyers are available, even while retaining troubled positions.
This creates an uncomfortable situation: the investments responsible for losses may remain in the portfolio while other assets are sold to raise cash.
Does Arini's Loss Signal a Broader Credit Problem?
Arini's difficulties have emerged alongside a wider global bond selloff, with rising borrowing costs placing additional pressure on heavily indebted companies.
European debt markets have also faced concerns about France's borrowing costs, while corporate credit investors are increasingly sensitive to refinancing risks.
Similar pressures have appeared in technology financing. The rising cost of default protection on CoreWeave debt illustrates how quickly lenders can reassess an indebted business.
However, Arini's troubles do not mean its entire investment business is failing. Its collateralized loan obligation strategies have reportedly performed relatively well, and the company has continued expanding its private-credit operations.
