Before you start.

LeetQuidity is a complete preparation course for quant trading and quant research interviews.

It began as an intensive two-month course taught at MIT by an MIT graduate. According to the course founders, more than half of the original class went on to secure relevant roles at leading quantitative trading firms, market makers and hedge funds.

We have rebuilt that course as a self-paced platform combining rigorous lectures, interview problems, worked solutions, realistic practice and performance calibration. It is the mathematical foundation, interview methodology and deliberate practice required to compete for selective roles in quantitative finance.

MIT’s secret quant course, now available outside the classroom.

LeetQuidity is for candidates preparing for quant trading and quant research internships, graduate positions and early-career roles.

Most members come from mathematics, computer science, physics, engineering, economics and related quantitative disciplines. Prior finance experience is not required. The course works both for candidates starting from first principles and for strong mathematical candidates who need structured, interview-specific preparation.

Most quant resources provide one part of the process: a question bank, a collection of puzzles, isolated videos or a short bootcamp. LeetQuidity provides the full learning loop.

You learn the mathematics, see it applied, solve interview-style questions, receive worked explanations and use performance data to decide what to study next. The aim is not to memorise answers. It is to develop the mathematical instincts and repeatable methods needed for unfamiliar problems under pressure.

LeetQuidity covers the whole journey — learn the material, practise it, land the role. Active membership includes:

• The full quant trading and quant research lecture courses (80+ hours)
• Complete lecture notes for quant trading and quant research
• A curated path through 2,000+ interview questions with worked solutions
• Simulations of 5 real quant interview games, with scoring and leaderboards
• A platform to find people to mock interview with
• An active job board with an application tracker
• Mentorship: CV review, mock interviews and super-day preparation
• Performance calibration and readiness analytics

Yes. Both paths begin with a common mathematical foundation, then move into role-specific preparation.

The curriculum follows the LeetQuidity syllabus chapter by chapter:

• Coins — waiting problems, Bayesian coins, Gambler’s Ruin, urns and betting games
• Dice — sums, counts and occupancy, order statistics, coupon collectors and optimal stopping
• Cards — deck structure, matching problems, poker-style counting and pattern waiting
• Circles — geometric probability: random points, chords, arcs and coverage
• Grids — path counting, barriers and lattice random walks
• Market Making & Fermi — market-making strategy, hedging and Fermi estimation
• Statistics (quant research) — distributions, hypothesis testing, OLS, MLE and MCMC
• Linear Algebra (quant research) — projections, spectral analysis, SVD and random matrix theory

Each section follows a deliberate loop: lecture and LaTeX-style lecture notes with diagrams → worked examples → quiz with interview-style questions → immediate feedback and worked answers → progression.

Lectures establish the theory and demonstrate representative interview problems. You then solve questions that test whether you can reproduce the method independently. The objective is active mastery: derive the result, explain it, and adapt the method when an interviewer changes the problem.

That depends on how deep you want to go. The platform supports three speeds:

• The full experience: the LeetQuidity curriculum contains 80+ hours of lectures alongside quizzes, worked problems and interview practice — most students complete it over one to four months.
• Faster: skip to the relevant lectures and concept summaries, then select specific problem topics to master from the 2,000+ interview-style problems with detailed solutions and the 5 interview games with scoring and leaderboards.
• Fastest: select specific subtopics and run targeted preparation on exactly what your interviews will test.

No. The course teaches the relevant trading concepts from first principles.

You should be comfortable with algebra and basic mathematical reasoning. Some research-oriented sections become substantially more demanding, but the curriculum builds foundations before applying them to harder interview problems. A willingness to work through difficult problems matters more than prior knowledge of financial terminology.

LeetQuidity prepares candidates for the mathematical and problem-solving styles used by leading quantitative trading firms, market makers and hedge funds.

That includes formats associated with firms such as Jane Street, Citadel, Citadel Securities, Jump Trading, D. E. Shaw, SIG, Optiver, IMC, Millennium and Point72. The course teaches reusable probability, statistics, market-making and reasoning skills; firm-specific problems expose different interview styles rather than encouraging rote preparation.

Not yet as a complete standalone pathway. The current curriculum is strongest in probability, statistics, mathematical problem solving, game theory, market making and role-specific quantitative reasoning.

Candidates applying for coding-heavy positions should continue using a dedicated resource for data structures, algorithms and timed programming practice. LeetQuidity does not currently claim complete HackerRank, CoderPad or live coding preparation.

You are not ready simply because you recognise familiar questions or understand a solution after seeing it.

You are ready when you can solve unfamiliar problems accurately under time pressure and explain the reasoning clearly enough for an interviewer to follow. LeetQuidity’s calibration and performance analytics help identify strengths, weaknesses and progression across the main interview domains.

For live practice, LeetQuidity also offers mock interviews as a service and a peer-interview matching network, so you can rehearse with a real person before the real thing.

No serious preparation course can guarantee an offer.

Interview outcomes also depend on the hiring market, your academic and professional background, communication, coding performance and the process used by each firm. LeetQuidity gives you a rigorous system for mastering the material and understanding where your performance remains below the required standard. The final result still depends on your performance.

Yes. The LeetQuidity calibration is free and requires no payment details — use it to put a number on your starting point.

Beyond that, the monthly and annual plans open with a 1-day free trial of the complete platform: 80+ hours of lectures, 2,000+ interview problems with detailed solutions, the interview games and full analytics. Cancel from your account settings before the trial ends and you will not be charged. The Lifetime plan is a single payment and has no trial.

Comparable bootcamps and certificates run into the thousands of dollars — the trial gives you a day inside the full course to judge the value for yourself.

LeetQuidity is currently available at Founding Cohort Launch pricing: $49 per month or $299 per year, each opening with a 1-day free trial. A one-time Lifetime plan is $499.

The standard monthly price is planned to increase to $99 per month. Founding Cohort Launch pricing is held until noon UTC on 10 August 2026; after that the monthly price rises to the standard $99. Members who join at the launch price keep it for as long as their membership stays active.

The Founding Cohort Launch is the initial public release of the complete LeetQuidity platform.

Founding members receive access at the current launch price while LeetQuidity expands the curriculum, practice library and analytics. It is not a reduced version of the course: members receive the core platform and new material released during their active membership. Contact support for questions about a specific membership or renewal.

Yes. Universities, student societies, educational programmes and employers can provide LeetQuidity access to groups of candidates.

Institutional arrangements can include cohort onboarding, learner-progress visibility and access terms appropriate to the programme. Visit the Institutions page to discuss a cohort.