Unlock the full vault.
Everything you need to walk into a quant interview ready. ~400 problems are free, no card needed.
3,200+problems
47company funnels
19trading games
40+courses
See plans, from $24 a month ↓
What people preparing with QuantVault say on Trustpilot
Zhenghao ZengSep 6, 2026
★★★★★
Incredible quant prep website
Solid and comprehensive learning materials, many real problems, personalized weakness evaluations. This is a really amazing website for preparing quant interviews!
Jeevaa SSep 17, 2026
★★★★★
Excellent prep for quant interviews
The firm-specific question sets are very useful, and the market-making games in particular gave me a much better way to practice the actual decision-making and mental math that comes up in interviews...
Dereck YangAug 17, 2026
★★★★★
Great practice site
QuantVault has tremendous amount of practice questions, and these questions are categorized nicely by its level of difficulty and formats. It has been really helpful for preparing for interviews!
A.Aug 18, 2026
★★★★★
realistic questions
I really liked the quality of questions for my interview prep. far beyond my expectations, and highly recommended.
Xin WanAug 10, 2026
★★★★★
Extremely reachable founder
what stands out is Stan's responsiveness. whenever i want a new feature, Stan gets it done in a few days.
Xiangyu WangSep 10, 2026
★★★★★
good questions
good questions, correct process
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Free
$0 /forever
Start with ~400 curated problems.
Get started with ~400 curated problems across every topic and difficulty.
- ~400 curated problems
- Solve mode & instant checking
- Progress tracking & XP
- Trading-game tutorials
- Skill assessment
Monthly
$24 /month
Billed monthly, cancel in two clicks.
Everything QuantVault has — unlocked.
- All 3,200+ problems
- Full solutions, hints & intuition
- Adaptive study plan
- Every company funnel (47)
- 40+ courses & all trading games
Most popularOne full season
Quarterly
$72$59 /3 months
$19.67/mo · $72 if paid monthly. Covers a whole recruiting cycle.
Most interviews land inside 3 months — this covers the whole run.
- Everything in Monthly
- All 3,200+ problems
- Adaptive study plan
- Every company funnel (47)
- 40+ courses & all trading games
Best value
Annual
$288$169 /year
$14.08/mo · $288 if paid monthly. Save 41%, best value for a full cycle.
Everything in Monthly — locked in for the year.
- Everything in Monthly
- All 3,200+ problems
- Adaptive study plan
- Every company funnel (47)
- 40+ courses & all trading games
Interview funnels for
What Pro unlocks
| Free | Pro | |
|---|---|---|
| Problem bank | About 400 curated problems | All 3,200+ candidate-reported problems |
| Worked solutions, hints and intuition | On the free problems | On every problem |
| Firm interview funnels | The free problems inside each funnel | Every problem in every round, all 47 firms |
| Timed OA simulations | Free examples and previews | The full timed run for every firm |
| Timed practice sprint | Free, no login needed | Yes |
| Trading and market-making games | Tutorials and the free games | Every game, including the market-making sims |
| Courses | The first 3 lessons | All 40+ courses, including the coding chapter |
| Adaptive study plan | Yes | Yes, drawing on the full bank |
Secure checkout via Stripe · Cancel anytime in two clicks, access runs to the end of the period you paid for
Questions
Can I cancel anytime?
▶
Yes. Cancel anytime from your account settings. You'll keep Pro access until the end of your billing period.
Are the problems AI-generated?
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No. Every problem traces back to a real, candidate-reported interview — debriefs from people who sat the actual rounds, plus firm processes we know first-hand. We do use AI, and we are open about where: it tidies wording, standardizes notation, and formats solutions consistently. It never invents problems. You can check the receipts yourself: most problems show the firm and date of their latest candidate report, user-reported corrections ship within days, and our OA replicas match real assessments down to their original graphics. And we put money on it: find a genuine error in a problem or solution, email [email protected], and if you are right you get a free month of Pro.
What payment methods do you accept?
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We accept all major credit and debit cards through Stripe. Your payment information is handled securely by Stripe and never stored on our servers.
Which problems are free?
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400 problems are free across all difficulty levels and topic areas. Free problems are selected to give you a representative sample of easy, medium, and hard questions across the full problem set.
Do I need an account?
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A free account (Google or GitHub sign-in) is needed to track progress and unlock Pro. Sign-in takes seconds.
Are the problems AI-generated?
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No. The ~400 free problems are built exactly the same way as the Pro ones — the only difference is how many you get. The best way to judge is to work through the free set and decide for yourself before paying anything.