Top 13
Prep plan
Updated weekly · Last refresh Oct 6Citadel Quantitative Trader Interview Questions
The questions to prepare for a Citadel Quantitative Trader interview. Questions from real interview reports rank first. Updated daily.
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Statistics & ProbabilityStart here. 8 questions · ~64 min
Probability of a Straight in CardsMedium
Evaluates knowledge of combinatorics and probability in card games.
combinatoricsprobability
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CitadelRandom Points on a SphereHard
Assesses geometric probability on spheres and origin containment.
probabilitygeometryCitadel
CitadelExpected Value of Two DiceEasy
Tests basic EV for sums of independent discrete variables.
probabilityExpected ValueCitadel
CitadelProbability of Two Heads with Biased CoinEasy
Assesses reasoning about probabilities with biased inputs.
probabilityExpected ValueCitadel
CitadelEV of Two Dice (Redundant)Easy
Duplicate of item 5; EV for two dice sums.
probabilityExpected ValueCitadel
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2
Behavioral & Leadership3 questions · ~24 min
Interest in Citadel Quant TraderEasy
Assesses motivation and alignment with Citadel's role in markets.
role fitcareer motivationcompany interestCitadel
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3
More topics2 questions · ~16 min
Random Forest in TradingMedium
Tests understanding of ensemble methods and their practical trading constraints.
Machine LearningCitadel
CitadelDeterminant of a MatrixMedium
Assesses linear algebra foundations applicable to quantitative work.
linear algebraCitadel
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