Summary
Highlights
The Price Earnings to Growth (PEG) ratio was the most effective metric for predicting stock performance in 2025, demonstrating a near-perfect linear relationship with median share price gains.
The Price to Book (PB) ratio also showed a strong downward-sloping pattern, with stocks under one PB achieving significant gains. However, caution is advised as asset values are dynamic and can quickly change, making PB less reliable if assets are not re-evaluated consistently.
Unlike PEG and PB, the Price to Earnings (PE) ratio showed a messy, less clear relationship with stock performance. While very high PEs generally indicated lower returns, very low PEs (0-10) often signaled underlying company issues rather than value.
Past growth in revenue and earnings consistently predicted higher share price gains. Companies with stronger growth in the prior five years and the preceding 12 months significantly outperformed those with lower growth, emphasizing that the market rewards growing businesses, not just cheap ones.
Companies with higher free cash flow performed better. Debt to Equity showed a U-shaped pattern, with a DE between 1 and 2 performing best. Return on Equity (ROE) was counterintuitive: very high ROE often led to declining share price gains, potentially due to excessive leverage or overvaluation.
The most effective investment strategy involves 'stacking' multiple metrics. By filtering for stocks with a low PEG (under two) and reasonable debt to equity (under two), the optimal ROE band for performance shifted to 15-20%. This multi-metric approach helps identify robust investment opportunities by combining value, growth, and financial strength.
Tracking two strategies (Lower Risk and Balanced) that employ stacked metrics showed consistent outperformance against the S&P 500 in 2025, beating the market 16 out of 17 times over six months. This demonstrates the practical success of focusing on a select group of fundamentally strong stocks.