Zachary Chroman

Zachary 'Zack' Chroman is a mathematician and quantitative trader. He represented the United States at the 2017 International Mathematical Olympiad, earning a silver medal, and was an MIT PRIMES high-school researcher before an MIT BS in Mathematics (2021) and a Cambridge MASt (2022). He co-authored research in extremal combinatorics, including 'Lower bounds for superpatterns and universal sequences' (JCTA 2021). Since 2022 he has worked as a qualitative trader at Jane Street in New York.

Notes7

• Now a qualitative trader at Jane Street in New York since 2022, after a 2020 Jane Street quantitative trading internship; the math-olympiad pipeline into Jane Street is a common path for top US IMO/PRIMES alumni.2022
• Represented the USA at IMO 2017 in Rio, scoring 24 points (rank 49) for a silver medal per the official IMO record; AlphaStar Academy's alumni page labels him an 'IMO 2017 Gold Medal', so the gold label looks overstated.Jul 2017
• MIT BS in Mathematics (2018-2021) then a Cambridge MASt in Mathematics (2021-2022); attended The Nueva School (2014-2018), putting him at MIT by 2018 and at Jane Street from 2022.2022
• Co-authored 'Lower bounds for superpatterns and universal sequences' with Matthew Kwan and Mihir Singhal (arXiv 2020, published JCTA 2021), an undergraduate research result in extremal combinatorics.Apr 6, 2020
• Also co-authored 'Computations associated with the resonance arrangement' (arXiv 2106.09940), extending the same combinatorial research line.Jun 2021
• Listed in the MIT PRIMES alumni roster (2016) with destination MIT, and by AlphaStar Academy as 'MIT Class of 2022'.2016
• Taught 'A Lot of Meta-Mathematics' (Godel's Incompleteness Theorems) for MIT ESP's HSSP Spring 2019, showing an early record of math outreach/teaching before joining Jane Street.Feb 23, 2019
• Grader for Art of Problem Solving (2018-2019) and a 2019 quantitative research intern at Matrix Operations, tracing a straight line from competition math to quantitative finance.2019
• Maintains an OEIS wiki user page ('Undergraduate at MIT studying math') linking his superpatterns paper, and appears on chess.com as 'zacchro' - the same handle as his ESP teacher account and X profile.