
Marco Ruijer
CFA, Partner, Portfolio Manager

About Marco
Marco Ruijer, CFA, partner, is a hard currency portfolio manager on William Blair’s emerging markets debt (EMD) team. Before joining William Blair, Marco was the lead portfolio manager on NN Investment Partners’ EMD team, where he was responsible for managing EMD hard currency portfolios. Before joining NNIP in 2013, Marco was a senior fund manager for EMD at Mn Services in the Netherlands, where he managed various EMD portfolios. Before that, he worked with Mn Services’ investment strategy and risk management team. Marco began his career in 1998 as an investment trainee at Mn. Marco received an M.A. in international financial economics from the University of Amsterdam.
Why We Invest Shapes How We Invest
Culture is more than the ethos that characterizes our organization; it’s the engine that guides our practices. Our people are defined by their shared values and curiosity. Our approach is defined by teamwork; a disciplined, proven methodology; and technology-enhanced collaboration. Our purpose is defined by a focus on our clients and communities. But don’t take our word for it. See what culture means to our colleagues.
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About William Blair
William Blair is a premier global partnership with expertise in investment banking, investment management, and private wealth management. We provide advisory services, strategies, and solutions to meet our clients’ evolving needs. As an independent and employee-owned firm, together with our strategic partners, we operate in more than 20 offices worldwide.*
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1935
Year William Blair was founded
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1,900+
Employees worldwide
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147 billion+
Client assets
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90 Years
Independent and employee-owned
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20+
Offices worldwide
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~650
Companies under coverage
As of December 31, 2024
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.