The only quant interview training
you’ll need
Master 1,526 dynamic question templates across mental math, probability, statistics, options, market making and more. Every session changes, so you learn the reasoning instead of memorizing a question bank.
A training platform you can trust
The bank is measurable, the generation method is transparent, and every answer includes the reasoning needed to improve.
Two modes
Training with worked explanations after every question, or Interview with strict clocks and zero feedback until the report.
Real clocks
30 to 90 second training clocks, cut in half for interview sessions. The pressure is part of the curriculum.
Worked explanations
Every miss ends with the fair value and the fastest way to think about it: complements, linearity, unfoldings.
P&L scoring
Correct pays +€100, a miss costs −€50. Sessions close with a report by category, accuracy and speed.
Large enough to stay useful. Structured enough to teach.
QuantPrep separates the reusable interview archetype from the changing numbers. That creates breadth without sacrificing a clear method or a checkable answer.
Original questions, grounded in reported interview themes
We research recurring interview topics, convert them into original parameterized generators, and label firm profiles as style guides—not leaked question claims.
Automated generation checks completed in the latest expansion pass, alongside syntax and interaction testing.
Read the methodologyLike the real thing. Report at the end.
Interview mode hides every signal: no verdicts, no streaks, no running score. You quote, you move on, and the full report lands only when the session closes.
Interview mode
Half clocks, auto-advance, empty box skips. Exactly the shape of the online screening tests at major market makers.
Training mode
Relaxed clocks or untimed, with the fair value and a worked method after every single question.
Session reports
Accuracy by category, average speed, and a study list of every miss with its explanation.
The numerical test
Dozens of arithmetic questions on a brutal clock. Wrong answers are penalized, so knowing when to skip is a skill. Train it daily.
Probability rounds
Live puzzles with a trader. State assumptions, use linearity of expectation, think in complements, talk while you compute.
Market making games
Quote a bid and an ask on anything. Price uncertainty, manage the position, and avoid getting picked off by a better informed counterparty.
Final round
Simulations, betting games and behavioural rounds. Firms check calibration, bet sizing, and whether you tilt when a round goes wrong.
Every interview layer. Fourteen categories.
From speed arithmetic and probability to statistics, stochastic processes, options, microstructure, game theory and estimation.
Mental Math
Two digit products, squares, fractions to decimals, series sums, powers of two. The raw speed layer every firm screens first.
Probability
Exact counts, complements, conditional probability, and Bayes' theorem with base rate traps. The core language of trading.
Expected Value
Linearity of expectation, geometric waits, the coupon collector, max and min of dice, pattern matching coin flips.
Combinatorics
Handshakes, committees, arrangements, trailing zeros. Fast, structured counting without double counting yourself.
Markets & Betting
Implied probabilities, compounding, variance and the Kelly criterion. The bridge from puzzles to trading judgment.
Logic & Brainteasers
Two eggs, 25 horses, bridge crossings, Josephus circles, Nim games. The puzzles where interviewers watch how you think.
Geometry & Visual
Clock angles, lattice paths, darts and inscribed shapes, broken sticks. Questions with diagrams, answered by seeing structure.
Number Sequences
Arithmetic, geometric, alternating and second-difference sequences modeled on high-speed numerical reasoning screens.
Statistics & Inference
Variance, covariance, regression, estimators, standard errors and conditional moments for research-heavy interview tracks.
Stochastic Processes
Random walks, hitting times, Poisson arrivals, Markov chains, AR processes and Brownian scaling.
Game Theory & Strategy
Mixed strategies, auctions, take-away games, optimal stopping and information-driven strategic decisions.
Options & Derivatives
Put-call parity, forwards, payoff structures, one-step pricing, replication and delta hedging.
Market Microstructure
Order-book fills, VWAP, ETF NAV, leveraged products, inventory and adverse-selection updates.
Geometry & Estimation
Fermi estimates, spatial reasoning and approximation drills where assumptions matter as much as arithmetic.
1,526 templates. Practically endless variants.
A template defines the reasoning pattern. The engine then changes the inputs, constraints and answer—turning one archetype into repeated practice without fixed memorization.
The same archetype, three fresh exams
Generated this second, on your device:
Question archetypes
Answers in any format
The checker reads them all.
Visual questions
Clocks, grids, spinners and sticks drawn inline. Read the diagram, quote the number.
Unique families first
The trainer prioritizes unique question families within a session. Longer or narrowly filtered sessions may revisit a family with new parameters rather than serving the same fixed prompt.
Learn the topic. Then train it under pressure.
Search-friendly, practical guides explain the concepts and direct you into the matching randomized drills.
Quant interview questions
The 14 question families, what each tests, and how trader and researcher interviews differ.
Read the guide → PREPARATIONHow to prepare
A structured four-week approach for screening tests, technical rounds and trading games.
Build your plan → SPEEDQuant mental math tests
Products, percentages, fractions, squares and sequences—plus a repeatable speed routine.
Train arithmetic → CORE MATHProbability questions
Complements, conditioning, Bayes, expectation, dice, cards and stopping-time patterns.
Study probability → TRADINGMarket-making interviews
Fair value, bid–ask spreads, inventory, information and how to explain a quote.
Learn market making → FIRM GUIDEJane Street interview prep
Officially highlighted topics, a focused practice mix and the limits of firm-style preparation.
Open firm guide →Train by the firms that run these interviews
Choose a firm focus inside the trainer to prioritize original drills mapped to its publicly reported interview style.
Optiver
AMSTERDAMFamous for its rapid fire arithmetic screening test: high volume, short clock, penalties for errors. Speed math is non-negotiable here.
IMC Trading
AMSTERDAMHeavy on probability, logic puzzles and trading games, with a strong technology culture across its Amsterdam and Chicago desks.
Flow Traders
AMSTERDAMETF specialist whose interviews combine numerical testing with market intuition and product knowledge questions.
Da Vinci Derivatives
AMSTERDAMBoutique options desk. Expect probability, game theory and betting style questions in a small team setting.
Jane Street
The benchmark for probability and market making game interviews: EV puzzles, confidence intervals, repeated "make me a market" rounds.
Citadel Securities
Highly quantitative rounds spanning probability, statistics and mental math, plus rigorous technical interviews for quant roles.
Susquehanna (SIG)
Built its identity on decision making under uncertainty. Poker is part of trader training, and interviews probe betting logic and calibration.
Jump Trading
Research and technology driven. Quant interviews lean on probability, statistics and algorithmic thinking.
Hudson River Trading
Algorithmic trading firm with mathematically deep interviews covering probability, algorithms and estimation questions.
DRW
Broad trading house whose interview loops mix mental math, probability, and market scenario discussions.
Two Sigma
Research oriented quant fund. Expect statistics, probability and data driven problem solving over pure speed math.
Five Rings
Known for challenging probability and game theory interviews with a strong competition math flavour.
QuantPrep is an independent study resource and is not affiliated with, or endorsed by, any firm listed above. Interview formats change, so always verify each firm's own process.
What “firm-style” actually means
It means a drill matches a topic or format publicly associated with that interview. It does not mean the exact prompt was leaked, copied or guaranteed to appear.
Read the full methodology →A visible product history
Major bank expansions, trainer changes and quality improvements are documented by version so candidates can see that the platform is actively maintained.
See the changelog →Quant interview prep, answered
How many quant interview questions are in QuantPrep?
Will I keep seeing the same questions?
What topics do quant interviews test?
How should I prepare for a quant trading interview?
Are the questions copied from real interviews?
Is QuantPrep affiliated with Jane Street, Optiver, IMC or another firm?
Start with ten fresh questions
Choose a firm focus, difficulty and category mix. The trainer handles the clock, scoring and review.
Start Training