Key insights
- The debate between value and passive investing continues. While fundamental analysis aims to identify undervalued stocks, research suggests retail investors struggle to outperform the market consistently using this approach. Passive investing offers diversification and lower costs, potentially leading to better long-term results for average investors. The impact on US equities is slightly negative, reflecting the ongoing debate and potential shift towards passive strategies.

2 years ago a colleague and me started talking about investing. He started an online course on fundamental analysis and value investing, while I started getting interested in index funds, passive investing, John Bogle etc.
Long story short he just started value investing and I just started buying a simplified Bogle-type portfolio of sp500 + few others.
Now, he is convinced he is choosing the winning strategy and I am convinced I am choosing the winning strategy. We understand each other's points of view, but we can't prove each other wrong.
We are scientists, but from a field very different from economics. Can you, Reddit, show us proper research papers and evidence that fundamental analysis beats the market? Or better yet, that retail investors using fundamental analysis can beat the market? Also I'd like to hear your opinion.
Thanks.