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 combines course material, practice and a benchmark for your preparation. Active membership includes:

• A structured lecture curriculum covering the mathematical and practical core of quant interviews
• Dedicated preparation for quant trading and quant research
• Interview-style quizzes with worked solutions
• Practice organised by topic, role and problem style
• Probability, statistics, mental maths, game theory and market-making practice
• Performance calibration and readiness analytics
• New curriculum material and practice content as it is released

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

Quant trading focuses on probability, expected value, combinatorics, mental maths, numerical estimation, game theory, market making, pricing, risk and fast decision-making. Quant research places greater emphasis on probability, statistics, inference, data-driven reasoning and research-style problem solving. The curriculum makes the overlap and distinctions explicit rather than treating all quant interviews as interchangeable.

The curriculum covers the subjects that recur throughout serious quant interviews, including:

• Probability, conditional probability and expected value
• Combinatorics and probability distributions
• Statistics and statistical inference
• Mental maths and numerical estimation
• Game theory and strategic reasoning
• Market making, pricing, risk and trading intuition
• Brainteasers and structured problem solving
• Quant trading and quant research interview problem styles

Each section follows a deliberate loop: lecture → worked examples → interview quiz → immediate feedback → 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.

The released LeetQuidity curriculum contains 80+ hours of lectures, alongside quizzes, worked problems and interview practice.

Most students complete the core curriculum over one to four months. The original MIT course was taught intensively over two months. Your pace should reflect your mathematical background, target role and interview schedule; calibration data can help prioritise the areas with the highest expected impact.

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.

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. You can take the free LeetQuidity calibration and watch the introductory Gambler’s Ruin lesson without payment details.

The preview includes teaching and assessment, so you can experience the learning loop rather than a promotional extract. Use the calibration to identify your starting point and the free lesson to judge the depth and teaching style.

LeetQuidity is currently available at Founding Cohort Launch pricing: $49 per month or $299 per year.

The standard monthly price is planned to increase to $99 per month. No future annual price has been announced. The launch price is offered while the platform and curriculum continue to expand; no deadline, countdown or capacity figure is implied.

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.