500+ quant interview questions for Jane Street, Citadel, Two Sigma, DE Shaw, and other top quantitative finance firms.
Statistical analysis and quantitative modeling problems
Trading MCQs, probability brainteasers, and market scenarios
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Difficulty: Easy
Category: statistical_analysis
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: statistics, sharpe, rolling, risk, performance-metrics
The rolling Sharpe ratio is a key metric for analyzing the time-varying performance of trading strategies and financial assets. It is calculated over a moving window to detect performance degradation, such as alpha decay or factor crowding, which is crucial for dynamic risk management. Quant desks use this diagnostic to adjust position sizes and manage portfolio risk. Task Implement solution(returns: list, window: int) -> list to calculate the annualized rolling Sharpe ratio for a series of ass
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