Stanford Paper Uses CNN on Raw Prices to Predict S&P 500, Challenging Factor Tradition

mdancho84 · x · 2026-10-12

A Stanford paper by Rahul Gupta challenges quant finance's long-held consensus that raw prices are too noisy and require hand-crafted indicators. It feeds multivariate raw data (including split/dividend events) into a CNN as image-like matrices to predict S&P 500 movements, reporting promising results across single stocks, sectors, and portfolios.

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