Everything you need to crack a quant interview.
QuantTrading.io brings together a tiered question bank, mental math drills, crash courses on core topics, and firm-specific guides — so you can walk in prepared, not just practiced.
Mental math drill
Speed round
Answer as many arithmetic questions as you can before the timer runs out.
Timer
01:30
200+
Practice questions
3
Difficulty tiers
8+
Crash courses
10+
Firm guides
Four tools. One goal.
Whether you need to sharpen your mental arithmetic, nail an options concept, or understand how Optiver structures its rounds — it is all here in one place.
Explore the platformTiered question bank
Hundreds of quant interview questions across beginner, intermediate, and advanced difficulty. Filter by topic and work at your own pace.
Mental math drills
Fast-paced timed arithmetic practice. Build the speed and accuracy that prop trading interviews demand.
Crash courses
Concise, practical introductions to options, probability, and other core topics — structured to get you interview-ready fast.
Firm-specific guides
In-depth breakdowns of interview formats at firms like Optiver, Jane Street, and Citadel so you know exactly what to expect.
Built around what the interviews actually test.
Every piece of content is chosen for its relevance to real quant hiring processes — no padding, no filler.
Question bank
- Beginner, intermediate, and advanced tiers
- Topics spanning probability, options, and mental math
- Track your progress as you go
Mental math practice
- Timed arithmetic rounds under pressure
- Addition, multiplication, fractions, and more
- Build speed under pressure
Crash courses & guides
- Options fundamentals for interview contexts
- Probability and expected value intuition
- Company-specific interview format breakdowns
Know before you go.
Our firm-specific guides break down the interview format, question style, and what evaluators are looking for — so you can prepare with a clear target, not a vague one.
"The Optiver guide told me exactly what to expect in the mental math rounds. I wouldn't have been as prepared without it."
Quant Trader Candidate
"Doing the timed drills every day for two weeks made a real difference to how comfortable I felt under pressure."
Incoming Quant, Prop Trading Firm
“The mental math drills made a noticeable difference. I was much faster under pressure in the actual Optiver test.”
Arielle T.
Quant Trader, London
“The firm guides are genuinely useful — knowing the format ahead of time meant I could focus on the content, not the surprises.”
Victor S.
Incoming QT, Chicago
Start practising today. Your next interview is closer than you think.
Sign up for free and get instant access to the question bank, mental math drills, and our introductory crash courses.