Market Timing Strategy Based on Principal Component Analysis

Paper linkhttps://papers.ssrn.com/sol3/papers.cfm?abstract_id=1509811

Use PCA on S&P 500 stocks to detect market states; shift to risk-free assets in extreme conditions, otherwise trade long/short based on historical state-matching of return and risk metrics.

PCA extracts key market drivers, enabling forecasts by comparing current states with historical patterns of market behavior.