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Yuyu Fan

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#large language models Sep 2026

Portfolio Optimization with Covariance from News-Derived Information Networks

Intercompany relationships change over time, but they are difficult to incorporate into traditional return-based covariance estimates. This article proposes a practical three-step framework for transforming financial news into a covariance input for portfolio optimization. First, a large language model extracts dynamic...

Zihan Chen, Andrew Chin, Yuyu Fan · 0 citations

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