Data●Mid
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david1-618
202mo ago
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GitHub Repository
Multi-factor equity risk model with classic factors, semantic LLM exposures, and residual factor discovery.
2 starsPython
Openfactor – A multi factor risk model
by rallies·Jun 24, 2026·2 points·1 comment
AI Analysis
●●SolidNiche GemBig Brain
Open-source Barra alternative with LLM-derived factor exposures for quant portfolios.
Strengths
- •Deterministic factor model with covariance matrices and idiosyncratic risk, not just API wrappers.
- •LLM semantic exposures add novel signal discovery beyond traditional style factors.
- •Python package with proper snapshot loading for reproducible portfolio analytics.
Weaknesses
- •No live demo or web interface, pure Python package limits accessibility.
- •Factor methodology documentation light for institutional adoption.
Category
Target Audience
Quant researchers, portfolio managers, finance developers
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Barra · Axioma · Northfield
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