SmartStops are calculated using proprietary, patent-pending Smart(R ) models and algorithms which are trade secrets and not published. Rest assured that it is more then just focusing on volatility. The model was built from over 4 decades of actual market experience and continues to evolve as market dynamics change. The uniqueness of the model includes that unlike a normal % trailing stop , the price point generated by the model will move up and down. The model also is unique in that it switches based on macro trends as well the underlying combination of technical analytics. That way it better adapts to actual market behavior and let’s profits run while minimizing losses. You can read more about the limitations of other approaches here and why we feel that SmartStops is the superior approach.