Valuation Metrics - GF Value is used for valuation, including price to GF Value, which is essential for back testing [1] - Back testing can be performed by ranking based on price to GF Value [1] Back Testing Analysis - Back testing functionality is supported, allowing users to add parameters [2][3] - Limiting the back testing to SP500 companies yields more sensible results [2] - A random GF Value back testing over the last three years (from 2022 to current) shows potential market outperformance [2]