Key takeaways
- Hamza Lemssouguer, founder of London credit hedge fund Arini Capital Management, has agreed to buy a Belgravia mansion for about £39 million while his flagship fund is down 32% for 2026.
- Arini lost 19.7% in October alone, according to an investor letter reported by Bloomberg, after heavy exposure to CCC-rated corporate debt turned against it.
- The fund has cut gross leverage to its lowest level since early 2022 and re-examined its five largest positions, which make up roughly two-thirds of its net asset value.
- Higher global interest rates, elevated energy prices and technical pressures in the CCC market are cited as drivers of the sell-off, making Arini a gauge of stress in speculative-grade credit.
Hamza Lemssouguer, the founder of London-based credit hedge fund Arini Capital Management, has agreed to buy a Belgravia mansion for about £39 million, according to reports published on November 11, 2026. The deal comes days after Arini told investors its flagship fund had lost 32% so far this year. The contrast has drawn attention because the fund’s losses come from a broad sell-off in the riskiest corporate debt, a segment that global investors are watching closely.
The purchase is not yet formally completed. According to Traders Union, the property is a Belgrave Square mansion being bought from Sir Dickson Poon, pending formal completion. The same report noted that Lemssouguer already owns a 400-year-old Tudor estate outside London and set up a Jersey-based family office, LIO Limited, in January to oversee his wealth and property holdings.
Who is Hamza Lemssouguer and what is Arini?
Lemssouguer is a former high-yield credit trader at Credit Suisse who left the Swiss bank in 2021. AlphaMaven’s summary of a Financial Times report describes Arini as a $22 billion, London-based manager that grew into one of Europe’s fastest-expanding hedge funds through leveraged, concentrated bets on struggling companies’ debt.
The record before 2026 was strong. The same summary cites returns of 27% in 2023, 21% in 2024 and 10% in 2025. Hedgeweek reported that the firm launched in 2022 with roughly $1 billion in assets.
Why has the Arini fund lost 32% this year?
The losses are concentrated in CCC-rated debt, one of the riskiest rungs of the credit market. Investing.com, relaying an exclusive Bloomberg report, said the flagship fund fell 19.7% in October and that its year-to-date decline had been about 26% as of October 23. Bloomberg’s account was based on an investor letter.
According to Hedgeweek, the letter acknowledged that the fund had underestimated the dislocation in CCC-rated debt, which makes up most of its exposure. Arini said it remains convinced of its core investments. It has re-underwritten its five largest positions, about two-thirds of the master fund’s net asset value, trimmed some holdings and cut gross leverage to the lowest level since early 2022.
The firm pointed to technical pressures, including limits on collateralized loan obligations (CLOs) buying CCC-rated securities and aggressive short selling, according to the Investing.com summary. A CLO is a vehicle that pools corporate loans and sells slices to investors. The same report listed debt issued by Altice International, Brightspeed and Aston Martin among its holdings.
Earlier setbacks fit the pattern. Hedgeweek reported that the fund fell about 8% in July after Aston Martin secured a £550 million financing package from HPS Investment Partners that effectively bypassed existing bondholders, including a creditor group led by Arini. Arini also lost money on equity tranches of credit-default swaps tied to Virgin Media debt, according to that report.
What does the Arini drawdown mean for credit markets?
Arini is a single manager, and no source reviewed here reports contagion to other funds or to the wider market. Its losses nonetheless illustrate how crowded, leveraged positions in weak credits can suffer when conditions turn. AlphaMaven’s summary of the Biggo Finance report attributes the pressure partly to higher global interest rates, elevated energy prices and the disruptive threat of artificial intelligence to weak-rated borrowers.
The rate backdrop remains firm. According to Saxo Markets, the US 10-year Treasury yield closed at 4.99% on November 10 after a hot inflation reading, and a 10-year note auction drew the weakest demand since early June. Vantage Markets noted that the Bank of England raised Bank Rate to 4.00% on November 5. For a fuller account of the US inflation data and the Fed debate, see Intelligence Report’s analysis of the October CPI release.
Higher funding costs matter most for borrowers with thin cash flow. That is the group in which Arini holds its largest positions.
How has the fund kept attracting capital?
Investor appetite did not vanish as losses built. Bloomberg reported on October 5 that Arini raised $1.5 billion for its Arini Credit strategy, reopening it to new money after two years, even though the main fund had lost money for five consecutive months. According to that report, more than $400 million was allocated at the start of October, with the rest due through February.
The Financial Times, in a post on X dated around October 22, said the fund was down over 21% for the year and had lost another 7% in three weeks. Separately, AlphaMaven’s summary of an earlier FT report said two of Arini’s top traders had left during the period of losses.
What to watch
- November performance: Arini’s next investor update will show whether the cut in leverage and trimmed positions stopped the October slide.
- CCC-rated debt prices: Further weakness in the names Arini holds, including Altice International, Brightspeed and Aston Martin, would test its decision to keep conviction in its core positions.
- Rate decisions: A US Federal Reserve move in December, which markets were pricing in after the November 10 inflation data according to Saxo and CentralFX, would raise funding costs further.
- Completion of the Belgravia purchase: Formal completion of the Belgrave Square deal, and any investor reaction to it.
- Capital flows: Whether the remaining Arini Credit inflows, scheduled through February per Bloomberg, arrive as planned.
Frequently asked questions
Who is Hamza Lemssouguer?
Hamza Lemssouguer is the founder of Arini Capital Management, a London-based credit hedge fund. He is a former high-yield credit trader at Credit Suisse, which he left in 2021. The Financial Times has described Arini as managing about $22 billion in assets.
How much has the Arini hedge fund lost in 2026?
According to an investor letter reported by Bloomberg, Arini's flagship fund is down 32% year to date after a 19.7% loss in October. The fund's exposure to CCC-rated corporate debt, one of the riskiest credit categories, drove most of the decline.
What is Hamza Lemssouguer buying in London?
Reports say Lemssouguer has agreed to buy a Belgrave Square mansion in Belgravia from Sir Dickson Poon for about £39 million. The deal is pending formal completion. He already owns a Tudor estate outside London, according to Traders Union.
Sources
- Arini's master fund losses deepen to 32% as manager trims positions
- Arini hedge fund losses deepen to 32% as credit selloff intensifies (Bloomberg via Investing.com)
- Arini founder agrees Belgravia mansion purchase as hedge fund losses mount
- Arini hedge fund falls 8% in July as credit bets turn sour
- Arini Raises $1.5 Billion Even as Its Main Fund Sees 13.5% Loss (Bloomberg)
- London hedge fund Arini falls 16 per cent on soured credit bets (Financial Times via AlphaMaven)
- Market Quick Take: US Treasury yields rip higher, 11 November 2026 (Saxo Markets)
- GBPUSD: Pound Slips Below 1.34 as Hot US CPI Erases BoE Boost (Vantage Markets)
Top image: Bernard Gagnon / Wikimedia Commons (CC BY-SA 4.0)
This article was produced by the Intelligence Report Desk. Sources are linked below.
