150 Most Frequently Asked Questions — On Quant Interviews
The primary guide for 150 Most Frequently Asked Questions on Quant Interviews is the book by Dan Stefanica Rados Radoicic Tai-Ho Wang
Brainteasers: Riddles designed to test your ingenuity under pressure, such as the "manhole cover" logic or "light switch" puzzles. 150 Most Frequently Asked Questions On Quant Interviews
• Financial instruments: options, bonds, swaps, forwards, futures. • C++, algorithms, data structures. • Statistics and machine le... Dan Stefanica's Post - LinkedIn The primary guide for 150 Most Frequently Asked
The Insight: Interviewers are looking for the concept of Expected Value (EV) and Game Theory. In the dice game, you should re-roll if the first result is less than the expected value of a single roll (3.5). So, you keep 4, 5, and 6. This changes the calculation for the total value of the game. Explain cross-validation strategies
- Explain cross-validation strategies.
- Approach: C(10,3)=120.
- Tip: show formula nCk = n!/(k!(n-k)!)
Each question below lists: the question, why it’s asked, a concise approach to answer, and a succinct tip. For longer algorithmic or derivation questions, a short outline of the solution is provided so you can reproduce or expand in interviews.
- Master the Basics: Ensure your mental math is flawless. Use apps or flashcards for calculation drills.
- Derive, Don’t Memorize: Do not memorize the answer to the "coin toss" problem. Learn to derive the expected value using infinite series ($E = p(1) + (1-p)(1+E)$).
- Mock Interviews: Practice speaking your thought process out loud. Silence is fatal in a quant interview. They want to hear your train of thought, even if you are heading down a dead end.
- Learn the "Green Book": Heard on The Street: Quantitative Questions from Wall Street Job Interviews by Timothy Falcon Crack is the unofficial bible for these roles. It covers the majority of the 150 questions you will face.
Report: 150 Most Frequently Asked Questions on Quant Interviews
Purpose
To help candidates prepare for quantitative interviews at hedge funds, prop trading firms, and investment banks (e.g., Jane Street, Citadel, Two Sigma, Optiver, Goldman Sachs).