User wanted to download a small open LLM and test news. Did it: FinBERT scoring 10408 FNSPID
headlines (7 tickers, 1332 obs). corr(sentiment, same-day ret) +0.082 (weak, contemporaneous);
next-day +0.026 (~0); next-day trade net 10bp OOS Sharpe +0.05 (dead). News real but reaction
INSTANT (HFT-captured); no tradeable next-day drift for retail; net of cost = nothing. Matches
Lopez-Lira/Tang + FinGPT research. Model was never the constraint -- market structure is. Closes
the news/LLM thread; deployable answer remains the adaptive multistrat book (news = risk-managed).
(note: pin transformers<5 for torch 2.6.)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>