Jane Street Quantitative Analyst Interview Questions

The questions to prepare for a Jane Street Quantitative Analyst interview. Questions from real interview reports rank first. Updated weekly.

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Expected Flips for Two HeadsMedium

Compute the expected waiting time to see two consecutive heads when flipping a fair coin.

DistributionsExpected ValueConditional Probability

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Coin Flip Probability

Easy

Tests basic understanding of probability for simple random events.

probability

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Expected Value After N Turns

Medium

Assesses your ability to model expected value using probability and linearity of expectation.

Expected Value

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Why Jane Street

Medium

Assesses motivation and fit for Jane Street’s quantitative, market-focused culture.

company interestmotivation

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Palindrome Coding ProblemHard

Evaluates your coding ability and correctness for a standard algorithmic problem.

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Estimation Questions, Coding Logic, Market Making

Medium

Assesses your ability to combine estimation, coding reasoning, and market-making thinking.

Estimationmarket making

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Implement and Explain an Algorithm

Medium

Assesses your ability to communicate and reason about a nontrivial algorithm.

implementation

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Fair Value of Three d4s

Medium

Assesses expected value calculation for discrete dice outcomes.

ValuationFinancial Modeling

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