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Arini’s master fund losses deepen to 32% as manager trims positions

Reported by Hedgeweek
Nov 7, 2026· 3 min read
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Key Takeaways
  • • Arini Capital Management's flagship master fund is down 32% year-to-date, following a 19.7% decline in October, according to an investor letter seen by Bloomberg.
  • • The losses stem from the fund underestimating dislocation in CCC-rated debt, which makes up the majority of its exposure.
  • • Arini has re-underwritten its five largest positions, roughly two-thirds of master fund NAV, and reduced gross leverage to its lowest level since early 2022.
  • • The firm has begun selling selected speculative-grade positions, with Pimco and Oaktree Capital Management among prospective buyers, and reported $389m in inflows over the past week as part of a $1.5bn fundraising effort.
Summary
Arini Capital Management's flagship hedge fund has lost 32% year-to-date, after a 19.7% decline in October, as persistent weakness in high-yield credit markets weighed on its concentrated portfolio. The losses were outlined in a recent investor letter seen by Bloomberg. The London-based credit specialist, led by Hamza Lemssouguer, acknowledged in the letter that the fund had underestimated the extent of dislocation in CCC-rated debt, which accounts for most of its exposure.

In response, Arini has re-underwritten its five largest positions, representing approximately two-thirds of the master fund's net asset value. The firm has trimmed selected holdings and reduced gross leverage to its lowest level since early 2022. It also plans to introduce greater portfolio diversification, after a period in which concentrated exposure to lower-rated credit left it vulnerable to mounting volatility. Arini has already begun selling selected positions in large speculative-grade issuers, with further disposals under consideration. Previous reports indicated the assets sold were primarily more liquid and better-performing holdings, with Pacific Investment Management Company (Pimco) and Oaktree Capital Management among prospective buyers.

Arini attributed the market pressure largely to technical factors rather than deterioration in underlying fundamentals. These include collateralised loan obligations approaching limits on their exposure to CCC-rated debt, and what the firm described as targeted short-selling at uneconomic levels. Despite the performance decline, the firm said its conviction in core investments remained intact, stating in the letter: "As for our core positions, let us be clear: Our conviction remains firm." It added that the fund has the structural duration of capital to see investments through to their anticipated catalysts. Some catalysts have accelerated while others have been pushed further out, though the underlying theses are unchanged.

The losses represent a significant reversal for Arini, which emerged as one of Europe's fastest-growing hedge fund managers following its 2022 launch with approximately $1bn in assets. The firm subsequently expanded into a $21.7bn credit-trading platform. Its portfolio has included debt issued by financially challenged companies such as Altice International, Brightspeed and Aston Martin, whose bonds have come under pressure from higher interest rates, elevated energy costs and concerns about the potential impact of artificial intelligence on certain industries. The fund also reported $389m in inflows over the past week, forming part of a broader $1.5bn fundraising effort.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Hedgeweek Arini’s master fund losses deepen to 32% as manager trims positions