Quantitative Trader Interview Questions

1,133 quantitative trader interview questions shared by candidates

Phone Interview - asked about a market sizing question and confidence level and a question about comparing two companies (stocks) and which one I would choose and my reasoning. Interviewer was pretty disrespectful and hard to communicate with. Tbh a very bad experience.
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Quantitative Trader

Interviewed at Citadel Securities

4
Dec 21, 2020

Phone Interview - asked about a market sizing question and confidence level and a question about comparing two companies (stocks) and which one I would choose and my reasoning. Interviewer was pretty disrespectful and hard to communicate with. Tbh a very bad experience.

Three stages. Timed online assessment on probability, combinatorics, mental math, and estimation. Short recruiter call on fit and motivation. Virtual onsite with several 30 to 45 minute rounds on market making, risk reward tradeoffs, brainteasers, data interpretation, and teamwork. Decision in about a week.
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Quantitative Trader

Interviewed at Citadel Securities

4
Dec 2, 2025

Three stages. Timed online assessment on probability, combinatorics, mental math, and estimation. Short recruiter call on fit and motivation. Virtual onsite with several 30 to 45 minute rounds on market making, risk reward tradeoffs, brainteasers, data interpretation, and teamwork. Decision in about a week.

A train leaves Glasgow with one hundred and two passengers onboard. It drops off three passengers in Edinburgh and does not pick up anymore on its way to Newcastle where it will terminate. How many words are in the sentence preceding this one.
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Quantitative Trader

Interviewed at Mako Trading Group

3.7
Dec 15, 2025

A train leaves Glasgow with one hundred and two passengers onboard. It drops off three passengers in Edinburgh and does not pick up anymore on its way to Newcastle where it will terminate. How many words are in the sentence preceding this one.

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