4-Week Quant Interview Study Plan
A four-week quant interview study plan for probability, expected value, market making, mental math, mocks, and targeted review.
Candidates with about one month before quant interviews who need a focused schedule.
Week 1: diagnose and rebuild foundations
Start with a mixed diagnostic rather than a long reading list. Score probability, counting, expected value, mental math, statistics, and explanation quality separately. Spend the rest of the week repairing the largest method gaps, especially sample-space setup, conditioning, and arithmetic accuracy.
Week 2: probability and expected value
Use week two for the topics that appear across many quant interviews: coins, dice, cards, Bayes rule, combinatorics, linearity of expectation, and simple stopping rules. Keep a short error log. Each miss should produce one repair sentence such as "I treated unordered hands as ordered" or "I forgot to condition on the first step."
Week 3: games, estimation, and speed
Add market making games, betting decisions, estimation prompts, and mental math under light time pressure. The goal is not maximum speed; it is making a reasonable decision while explaining uncertainty. Review quote width, fair value, inventory, and whether your arithmetic supported the decision.
Week 4: mocks and targeted repair
Run two or three mock interviews in the final week, then repair the patterns they expose. If every mock breaks on conditional probability, do not spend the next day on options vocabulary. The shortest path is to fix the repeated failure mode and retest it in a mixed setting.
Concrete schedule example
A balanced week can include three focused problem sessions, one timed mixed set, one market making or estimation session, and one review block. For a candidate working full time, that may be five 60-minute sessions. For a student, it may be shorter daily sessions plus one longer weekend mock.
Common mistakes
Candidates often spend the final month collecting resources, redoing solved problems, or taking mocks without reviewing them. A four-week plan only works if every week converts misses into a narrower next assignment. If the plan does not change after your diagnostic, it is not a study plan.
Practice the pattern
Use the LeetQuidity curriculum and calibration to turn this topic into a focused practice plan.