SI124: Why smart people often struggle with systematic investing ft. Jerry Parker

Systematic trend following relies on diversification, long-term commitment, and strict adherence to rules rather than predictive forecasting. The 2020 market environment underscored the necessity of holding non-correlated assets and maintaining discipline during periods of extreme volatility. Rather than fine-tuning models based on short-term data or complex academic theories, successful strategies prioritize simple, robust rules that capture market trends across diverse sectors, including commodities, currencies, and equities. While volatility-based position sizing is common, increasing exposure as volatility rises remains a risky approach that often contradicts core trend-following principles. Ultimately, effective trading systems minimize emotional interference, avoid over-optimization, and rely on historical back-testing to navigate unpredictable market crises, proving that simplicity and consistent rule execution remain the primary drivers of long-term performance.