AI article
Teaching a 27B Model to Write Trading Alphas: 101 Formulas, 12 Rewards and One Unseen Year
Community description: How Qwen3.8-27B learns to write WorldQuant-style formulaic alphas: the formula language, alpha vs. beta, 12 reward channels and the hacks behind them, and train vs. holdout results.
Dev.to | Oct 10, 2026 | Aleksei Romanov
Automated excerpt
Alpha vs. beta: keeping the model off the market’s direction Beta is market exposure: a book with β = 1 gains 1% when the market gains 1%. Beta and correlation of the shipped book against the market on the unseen year. Market: equal-weight open-to-open return of the same 46 stocks.
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