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Jain Global hires former Credit Suisse prime services head to lead SMA investments

Reported by Hedgeweek
Nov 5, 2026· 2 min read
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Key Takeaways
  • • Jain Global has appointed Ryan Nelson, former Credit Suisse prime services co-head, as head of separately managed account (SMA) investments in London, according to eFinancialCareers.
  • • Nelson joins from Boothbay Fund Management, where he spent approximately three and a half years as head of portfolio construction for EMEA.
  • • Jain Global now operates exclusively with capital from Millennium Management, a shift from its original independent multistrategy hedge fund model founded by Bobby Jain.
  • • Nelson was among nine employees dismissed by Credit Suisse after the Archegos losses, which exceeded $5bn; a March 2024 FINRA panel awarded him just over $590,000 in arbitration.
  • • Jain Global has not disclosed the specific responsibilities attached to Nelson's new role.
Summary
Jain Global has appointed Ryan Nelson as head of separately managed account (SMA) investments in London, according to a report by eFinancialCareers. The appointment comes as the hedge fund continues operating under an exclusive capital management arrangement with Millennium Management. Jain Global was founded by former Millennium executive Bobby Jain and now runs exclusively on Millennium capital, a departure from its original independent multistrategy hedge fund model.

Nelson joins from Boothbay Fund Management, where he spent approximately three and a half years as head of portfolio construction for EMEA. Before that, he held senior positions at Credit Suisse, serving as co-head of prime services between 2019 and 2021. That period included the collapse of Archegos Capital Management, which resulted in losses exceeding $5bn for the Swiss bank.

Nelson was among nine employees dismissed by Credit Suisse following the Archegos losses. He subsequently pursued arbitration, seeking at least $7m in compensatory damages and $100m for reputational harm and lost future earnings. In March 2024, a Financial Industry Regulatory Authority (FINRA) panel awarded him just over $590,000 and recommended that his regulatory employment record reflect that he had been terminated without cause.

The hire is expected to strengthen Jain Global's expertise in portfolio construction and managed account structures, though the firm has not disclosed the specific responsibilities attached to Nelson's new position.

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Sources

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

Hedgeweek Jain Global hires former Credit Suisse prime services head to lead SMA investments