Covariance Matrix Estimation in Financial Time Series
Benchmarked out-of-sample covariance forecasting methods for portfolio optimization. Evaluated sample covariance, adaptive EWMA, Ledoit-Wolf shrinkage, and random-matrix denoising across sliding windows.
- → Systematic backtesting framework evaluating in-sample vs. out-of-sample forecasting.
- → Adaptive EWMA model with dynamic half-life tuning to handle market volatility shifts.
- → White Paper and Jupyter Notebook suite detailing optimal estimation methods.