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Adam Theriault-Shay

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Adam Theriault-Shay manages a rates-and-currencies trading book exceeding $1 billion at Citadel — and he's not yet 30. In a world where macro hedge fund veterans spend decades building to that level of responsibility, Theriault-Shay's trajectory is remarkable for its speed and the old-school methodology behind it. His obsession isn't with data feeds and algorithms — it's with digging into obscure corners of global markets and conducting on-the-ground research to find answers that screens can't provide. Former colleagues at D.E. Shaw, where he started his career after graduating in 2019, describe a young analyst who would "disappear down rabbit holes in individual countries and companies and resurface with insights sharp enough to nudge the group's thinking" on currency positions. For a junior researcher to influence positioning at a firm managing $70 billion, that's extraordinary. Theriault-Shay stood out in D.E. Shaw's macro unit from day one, researching and trading currencies and emerging-market rates with a particular focus on Asia. What his colleagues noticed wasn't just analytical ability — it was an "inner, deep desire to figure out the truth and figure out what's really going on in markets." One described him as getting almost "giddy" about esoteric aspects of market microstructure. Citadel came calling in 2021, placing Theriault-Shay as an associate PM in the group run by Jon Tipermas, one of the firm's most respected bond basis traders. Within two years, he was promoted to full portfolio manager running his own team — a speed of advancement that signals exceptional performance in a firm not known for sentimentality about promotions. The combination of fundamental curiosity, willingness to get on planes and do the work, and quantitative rigor makes Theriault-Shay a throwback in an era increasingly dominated by systematic approaches. His under-the-radar status is nearly total: no Twitter, no Substack, no LinkedIn presence of note, no media appearances beyond the BI Rising Stars feature. He manages over a billion dollars and virtually no one outside Citadel's walls knows his name.

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