Free quant interview prep
188 problems across probability, stochastic calculus, options and risk — with spaced-repetition review and role-based tracks for traders, researchers and risk.
or start with The Quant 75 — the must-do list.
No credit card — just sign in with Google.
$ market-making/two-dice
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Interviewers won’t give you hints. The full bank comes with worked solutions and review.
A growing bank of original problems across the classic quant-interview canon — brain teasers, probability, stochastic calculus, options and risk — each tagged with the firms that ask it: Jane Street, Citadel, Optiver, Two Sigma, SIG and more.
Rate your recall after each problem and LeetQuant resurfaces it right before you’d forget — the Anki method, tuned for interview prep.
Curated, ordered paths for the seat you’re interviewing for: Quant Trader, Quant Researcher, or Risk. Each picks what that role actually gets asked.
Every topic they ask
Free to use. Sign in with Google — your progress syncs to every device.
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