Quant interview questions
1,322 questions in the style trading and research firms ask, from probability and brainteasers to options, statistics and coding. Every question is open to read; the 50 in the free sample show their worked solutions here.
378 questions · page 8 of 10 · Clear filters
- Your signal has a large positive loading on the value factor.Alpha and signal research · Advanced
- A signal has an information coefficient of 0.05 against returns, both approximately normal.Alpha and signal research · Advanced
- You hold 50 names at active weights of ±2%, each with 30% idiosyncratic…Alpha and signal research · Advanced
- Why did regulators move from value at risk to expected shortfall?Alpha and signal research · Advanced
- Two standardised signals are uncorrelated with each other and have ICs 0.04 and 0.03.Alpha and signal research · Advanced
- Positions are proportional to a standardised signal.Alpha and signal research · Advanced
- For normally distributed P&L with zero mean and standard deviation σ, the 97.5%…Alpha and signal research · Advanced
- A strategy earns 10 bp gross per trade.Alpha and signal research · Advanced
- What does the probability of backtest overfitting measure?Alpha and signal research · Expert
- You are asked to "predict demand" for a bike-share operator. What do you say first?Research case studies · Foundation · Free solution
- Ten observations: nine average 2 and one is 100.Research case studies · Foundation
- Your evaluation metric is mean absolute error and the target is heavily skewed.Research case studies · Foundation
- A model’s errors on five cases are 1,−1,2,−2,6.Research case studies · Foundation
- The best bid has 300 lots and the best offer 100.Research case studies · Foundation
- You buy 100 shares at $10.00, 300 at $10.20 and 100 at $10.50.Research case studies · Foundation
- You buy at $100.03 when the mid-quote is $100.00.Research case studies · Foundation
- Why does an interviewer ask for a baseline before you describe your model?Research case studies · Applied · Free solution
- A feature is missing for 20% of rows. What do you establish first?Research case studies · Applied
- You are asked to build a five-minute return predictor from order book data.Research case studies · Applied
- You have finished describing your approach and have two minutes left.Research case studies · Applied
- Your churn model feeds a retention offer with a fixed budget.Research case studies · Applied
- You forecast demand to decide inventory, where being short costs four times as…Research case studies · Applied
- You are asked how to validate a demand forecasting model built on three years…Research case studies · Applied
- A short-horizon signal earns 8 basis points a trade before costs of 3 basis…Research case studies · Applied
- You must present a forecast whose confidence interval is wide enough to include…Research case studies · Applied
- You are asked to predict house prices, which range from tens of thousands to…Research case studies · Applied
- A target takes values 1,2,3,4,100.Research case studies · Applied
- An opera house expects ticket demand q = 1000−10p at price p and has 800 seats.Research case studies · Applied
- A customer churns with probability 0.3 and is worth $200 if retained.Research case studies · Applied
- Your churn model’s most predictive feature is "number of support calls in the…Research case studies · Applied
- Control converts 5.0% of 10,000 users and treatment 5.6% of 10,000.Research case studies · Applied
- You need to classify trades as buyer- or seller-initiated from trades and quotes.Research case studies · Applied
- A series has median 10 and median absolute deviation 2.Research case studies · Applied
- Small companies are much likelier to leave a financial field blank when their…Research case studies · Applied
- Ten features are each missing in 5% of rows, independently.Research case studies · Applied
- Midway through your case answer the interviewer says one of your key…Research case studies · Applied
- A retention programme is offered to customers whose usage has just dropped…Research case studies · Advanced
- You build a factor from quarterly fundamentals downloaded from a vendor today.Research case studies · Advanced
- You run a difference-in-differences study.Research case studies · Advanced
- Your model assigns a 10% probability to 1,000 cases and 150 of them occur.Research case studies · Advanced