Key Takeaways
- • Balyasny Asset Management (BAM) has hired Limin Yang, a quant veteran who served as chief investment officer at Nebula Research and Development, a New York-based statistical arbitrage fund, according to eFinancialCareers.
- • Nebula was founded in 2019 by Michael Graves, a former top quant portfolio manager at Cubist, who reportedly died of a heart attack at age 49 while on vacation with his family, leaving his wife to run the fund.
- • Yang's LinkedIn profile lists him as CIO at Nebula from August 2022 until September 2025; Balyasny declined to comment on the hire.
- • Business Insider reported that Paloma Capital Partners, which had seeded Nebula, pulled its money from the fund following Graves' death.
Summary
Balyasny Asset Management (BAM) has hired Limin Yang, a quant veteran who spent the past few years as chief investment officer at Nebula Research and Development, a New York-based statistical arbitrage fund, according to eFinancialCareers. Balyasny declined to comment on the appointment, and the publication did not disclose Yang's start date or the specific role he will take at the firm.
Nebula was founded in 2019 by Michael Graves, a former top quant portfolio manager at Cubist, where he spent nine years before resigning in 2018. Graves reportedly died of a heart attack at age 49 while on vacation with his family three years after founding the fund, leaving his wife to run it. Business Insider reported that Paloma Capital Partners, which had seeded Nebula, withdrew its capital following Graves' sudden death.
According to Yang's LinkedIn profile, he served as CIO at Nebula from August 2022, a few months after Graves' death, until September 2025. Before Nebula, Yang was a managing director on the quant research team at BlackRock's alternative asset management business, a portfolio manager at Laurion Capital Management, and a prop trader at Credit Suisse.
Nebula was founded in 2019 by Michael Graves, a former top quant portfolio manager at Cubist, where he spent nine years before resigning in 2018. Graves reportedly died of a heart attack at age 49 while on vacation with his family three years after founding the fund, leaving his wife to run it. Business Insider reported that Paloma Capital Partners, which had seeded Nebula, withdrew its capital following Graves' sudden death.
According to Yang's LinkedIn profile, he served as CIO at Nebula from August 2022, a few months after Graves' death, until September 2025. Before Nebula, Yang was a managing director on the quant research team at BlackRock's alternative asset management business, a portfolio manager at Laurion Capital Management, and a prop trader at Credit Suisse.
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