# LeetQuant

> Practice real quant finance interview questions — probability, brain teasers, stochastic calculus, options and risk — with worked solutions, spaced-repetition review and role-based study tracks.

LeetQuant is a practice platform with 143 original quant interview problems across 9 topics, for candidates preparing for quant trading, research and risk roles. Problem statements and hints are public; full worked solutions, answer checking and progress tracking require a free account.

## Study plans
- [The Essentials](https://www.leetquant.tech/plans/essentials): Start here. A curated set of the highest-yield, most-asked problems every quant candidate should be able to do cold, whatever the role.
- [Quant Trader](https://www.leetquant.tech/plans/trader): Speed, intuition, expected value and market sense — the mental-math and game-theory muscle for trading desks (Optiver, IMC, SIG, Jane Street).
- [Quant Researcher](https://www.leetquant.tech/plans/researcher): Mathematical depth — probability theory, statistics, stochastic calculus and the numerical tools behind alpha research (Two Sigma, DE Shaw, Citadel).
- [Risk](https://www.leetquant.tech/plans/risk): Distributions, tail measures and portfolio sensitivities — VaR, CVaR, drawdown, the Greeks and duration. The risk-desk toolkit.
- [Complete · 30 Days](https://www.leetquant.tech/plans/complete-30): An intense one-month pass through the whole bank — every topic and all coding, interleaved so each one keeps coming back instead of being crammed once, ramping gently from easy to hard. About five problems a day.
- [Complete · 60 Days](https://www.leetquant.tech/plans/complete-60): A steadier two-month pass through every topic and coding problem at a gentler pace. A few problems a day across mixed topics, so earlier material stays fresh right up to interview day.

## Topics
- [Brain Teasers](https://www.leetquant.tech/category/brain) — 17 questions
- [Probability](https://www.leetquant.tech/category/probability) — 20 questions
- [Stochastic Processes](https://www.leetquant.tech/category/stochastic) — 10 questions
- [Calculus & Linear Algebra](https://www.leetquant.tech/category/calculus) — 16 questions
- [Algorithms & Numerical](https://www.leetquant.tech/category/algorithms) — 26 questions
- [Finance](https://www.leetquant.tech/category/finance) — 17 questions
- [Options & Greeks](https://www.leetquant.tech/category/options) — 16 questions
- [Portfolio & Risk](https://www.leetquant.tech/category/portfolio) — 11 questions
- [Statistics](https://www.leetquant.tech/category/statistics) — 10 questions

## Firms
- [Goldman Sachs interview questions](https://www.leetquant.tech/firms/goldman-sachs) — 55
- [Two Sigma interview questions](https://www.leetquant.tech/firms/two-sigma) — 35
- [Jane Street interview questions](https://www.leetquant.tech/firms/jane-street) — 29
- [Morgan Stanley interview questions](https://www.leetquant.tech/firms/morgan-stanley) — 26
- [Optiver interview questions](https://www.leetquant.tech/firms/optiver) — 25
- [Citadel interview questions](https://www.leetquant.tech/firms/citadel) — 19
- [DE Shaw interview questions](https://www.leetquant.tech/firms/de-shaw) — 17
- [Google interview questions](https://www.leetquant.tech/firms/google) — 13
- [IMC Trading interview questions](https://www.leetquant.tech/firms/imc-trading) — 11
- [SIG / Susquehanna interview questions](https://www.leetquant.tech/firms/sig-susquehanna) — 10
- [AQR Capital interview questions](https://www.leetquant.tech/firms/aqr-capital) — 9
- [J.P. Morgan interview questions](https://www.leetquant.tech/firms/jp-morgan) — 8
- [Barclays interview questions](https://www.leetquant.tech/firms/barclays) — 5
- [PIMCO interview questions](https://www.leetquant.tech/firms/pimco) — 5
- [Citadel Securities interview questions](https://www.leetquant.tech/firms/citadel-securities) — 4
- [HRT interview questions](https://www.leetquant.tech/firms/hrt) — 4
- [Jump Trading interview questions](https://www.leetquant.tech/firms/jump-trading) — 3
- [Akuna Capital interview questions](https://www.leetquant.tech/firms/akuna-capital) — 2
- [BlackRock interview questions](https://www.leetquant.tech/firms/blackrock) — 2
- [Man Group interview questions](https://www.leetquant.tech/firms/man-group) — 1
- [Millennium Management interview questions](https://www.leetquant.tech/firms/millennium-management) — 1

## Browse
- [All problems](https://www.leetquant.tech/problems)
- [Sitemap](https://www.leetquant.tech/sitemap.xml)