How to Study for Quant Interviews
A practical quant interview study plan that balances probability, expected value, mental math, market making, coding, and review.
Candidates building a structured quant interview prep plan.
What a good plan covers
A good study plan covers probability, expected value, mental math, estimation, market making, statistics, and coding where relevant. It also includes review. Without review, more problems just make the same mistakes faster.
Concrete example
A weekly loop might be two probability sessions, one expected value session, one mental math session, one market making game, and one mixed review. The mix changes once calibration shows a specific weak area.
How to practice
Start with diagnostic problems, then assign topics by weakness. Keep a mistake log with three fields: method missed, arithmetic error, or communication gap. The log should decide the next session.
Adjust by role
Trader candidates should weight mental math and market games more heavily, research candidates should add statistics and modeling critique, and developer candidates should protect coding time.
Common mistakes
Candidates build giant resource lists instead of doing targeted practice. Another mistake is switching topics whenever a problem feels hard. Stay with a pattern until the method is usable under time pressure.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.