2,262 curated quant interview problems
Master every quant interview topic.
Deep solutions for every level.
From brain teasers to stochastic calculus — covering the full breadth of quant interviews with deep solutions at every level. Every solution includes proofs, intuition, and hints.
Topics tested across the industry
Why QuantVault
Built for the interviews other sites ignore.
Most prep sites stop at coin flips and expected value. Quant research interviews go far deeper — and so does QuantVault.
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Comprehensive Problem Coverage
2,262 problems covering every major topic area tested in quant interviews. Curated and organized by difficulty, not AI-generated filler.
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Every Level of Depth
From classic probability to stochastic calculus and portfolio optimization — problems at every difficulty level, with detailed solutions and hints.
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Built by Practitioners
Created by quant professionals who went through these interviews and saw what was missing from existing resources.
About
QuantVault is built by quant professionals who went through the interview process and found that existing preparation resources barely scratched the surface. This platform was created to fill that gap — covering the full breadth of quant interviews with the depth they actually demand.
Featured Problems
View all →FAQ
Common questions
What topics are covered?
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Probability, stochastic calculus, portfolio optimization, derivatives pricing, statistical modeling, brain teasers, coding challenges, and more. Problems span every major topic area tested in quant interviews, organized by difficulty and category so you can focus on what matters most.
Is this free?
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400 problems are free to access across all difficulty levels. Pro ($19/month) unlocks all 2,262 problems with full solutions, hints, and intuition.
Who is this for?
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PhD students, STEM graduates, and professionals preparing for quant research, trading, and software engineering roles at quantitative finance firms.
How is this different from other prep sites?
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Most sites focus on probability puzzles and brain teasers. QuantVault covers the full breadth of quant interviews — stochastic calculus, portfolio optimization, derivatives pricing, statistical modeling, and real coding challenges with financial data.