I tried to beat the S&P 500 with machine learning. The bugs taught me more than the model.
The short version I could not build a stock picker I can prove beats the S&P 500, and the most useful thing I found was a list of bugs that made weak results look strong. Over several weeks I tested CAN SLIM rules, a momentum study, a volatility-targeting overlay, a machine-learning ranking model a…
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- 2026-10-18 09:48 · DEV Community — Machine Learning
I tried to beat the S&P 500 with machine learning. The bugs taught me more than the model.