attention spike
Mechanism
Abnormal Google search-volume on a ticker (SVI z-score) predicts: • SHORT-RUN OVERPRICING: investor attention spike → retail piles in → ~2-4 week mean-reversion as price corrects. • Especially in retail-heavy names (small/mid-cap, meme
Signal rule
z-score of Google Trends SVI; long quiet, short spike (no earnings catalyst)
Data dependencies
google_trends_sviGoogle search-volume index for the ticker as keyword.
Expected edge
2-week long for spike, 6-month short basket for unwinding (Da-Engelberg-Gao 2011)
Illustrative pattern only
NOT a backtestIllustrative pattern only — see /app for live backtests and the actual current equity curve.
Example tickers where this is likely to fire
Illustrative only — the signal fires based on the live data, not a fixed list.
Related families
wikipedia attentionSentimentAbnormal retail attention → 2-week price run-up, year-out reversal. Wikipedia pageviews is a cleaner orthogonal signal than Google Trends (Pyun 2024 shows it dominates Trends in OOS tests).
transcript finbert qa dispersionText-NLPHuang, Wang & Yang (2023) *Contemporary Accounting Research*: "FinBERT: A Large Language Model for Extracting Information from Financial Text." FinBERT-tone outperforms Loughran-McDonald wordcount on every post-call drift measure they tested (3-day CAR R² roughly doubles). Follow- up by Chen et al. (2024 *JFE*) shows a ~5% annualised long-short on the Q&A-dispersion
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