OpenQuant made its name as the quant job board — a curated feed of quant research, trading, and developer openings that many candidates check weekly — and it has added interview-prep material around that core. QuantVault comes from the opposite direction: it is an interview-prep platform first (problems, firm funnels, OA simulations, trading games) and does not list jobs at all. Because the cores barely overlap, this is less a rivalry than a question of which stage of the pipeline you are in. This page is written by the QuantVault team — the factual differences are easy to verify since both have free access.
What OpenQuant is best at
- The job board itself. A well-curated, quant-specific feed of openings with salary transparency — genuinely the best-known place to see what is hiring in quant finance right now.
- Market visibility. Compensation data points and hiring-trend signal you will not get from a prep site.
- Lightweight prep content. Interview questions and guides that are a reasonable orientation when you are starting out.
What QuantVault is best at
- Depth of practice. 2,800+ problems with full worked solutions, hints, and intuition — not a content side-project but the entire product.
- Firm funnels. 55+ firms mapped stage by stage: the OA, each interview round, and what each round actually tests.
- OA simulations and trading games. Timed assessments modeled on real firm OAs (Optiver, SIG, IMC and others) and interactive market-making games matching the rounds trading firms run.
- Adaptive drilling. An Elo-rated daily warmup that finds weak topics and feeds you the next problem worth doing.
Side-by-side comparison
| Dimension | QuantVault | OpenQuant |
|---|---|---|
| Core product | Interview preparation platform | Quant job board |
| Job listings | None | Curated quant openings with salary data |
| Problem bank | 2,800+ with full solutions, ~400 free | Smaller prep question sets |
| Firm-specific prep | 55+ firm funnels, stage by stage | Company pages oriented around openings |
| OA simulation | Timed, firm-modeled practice OAs | Not a focus |
| Trading games | Built-in market-making games | Not a focus |
Which one should you use?
Both, at different moments — this is the rare comparison where that is the straightforwardly correct answer. Use OpenQuant to find the openings and understand the market: what is hiring, at what compensation, in which cities. Use QuantVault once applications are in and interviews are scheduled: open the funnel for each firm that responded, see the stages in front of you, and drill each stage's actual format. The job board gets you into pipelines; the prep platform gets you through them.
Start practicing on QuantVault
When a first-round or OA lands on your calendar, start from the firm funnels to see the process end to end, then drill from the free problem set (~400 problems with full solutions) and the trading games — all free, no card required.
Frequently asked questions
Is QuantVault or OpenQuant better for quant interview prep?
For prep depth, QuantVault — 2,800+ problems with worked solutions, firm-by-firm funnels, timed OA simulations, and trading games; OpenQuant's core strength is its quant job board, with lighter prep content attached. Most candidates get the best result using OpenQuant to find openings and QuantVault to prepare for the resulting interviews.
What is the main difference between OpenQuant and QuantVault?
OpenQuant is a job board first (curated quant openings, salary transparency) with some prep material; QuantVault is a prep platform only — no job listings, all depth: problems, firm funnels, OA simulations, and games.
Does QuantVault list quant jobs like OpenQuant?
No. QuantVault does not list jobs — it prepares you for interviews at 55+ specific firms. For openings and compensation data, a job board like OpenQuant is the right tool.
Can I use OpenQuant and QuantVault together?
Yes — they cover different stages of the same pipeline. Find and track openings on OpenQuant; when interviews land, use QuantVault's firm funnels, free problem set, and OA simulations to prepare for each stage.
Practice the real thing
QuantVault has 2,800+ quant interview problems with full solutions, intuition, and hints, firm-by-firm interview funnels, and an auto-graded coding judge. Start free.