LeetQuant
LeetCode for quant finance interviews
LeetQuant launched on June 17, 2026 with 3 votes, #6,658 of 22,647 launches that month and more than 50% of that year's launches.
What it does
Free, LeetCode-style practice for quant finance interviews: 140+ original problems — probability, brainteasers, stochastic calc, options, coding — tagged by firm, with instant grading, worked solutions, spaced-repetition review, and day-by-day study plans.
Practice real quant finance interview questions — probability, brain teasers, stochastic calculus, options and risk — with worked solutions, spaced-repetition review and role-based study plans for traders, researchers and risk. Questions asked at Jane Street, Citadel, Optiver, Two Sigma and more.
188 problems across probability, stochastic calculus, options and risk — with spaced-repetition review and role-based tracks for traders, researchers and risk. Interviewers won’t give you hints. The full bank comes with worked solutions and review. skip → 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:…from leetquant.tech
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