Google Svi Attention Spike
In plain terms
When Google searches for a stock spike, the stock pops then mean-reverts. Long the spike, short the reversal.
How it works
Google SVI captures retail attention bursts that push price beyond fundamentals on the day of spike with subsequent reversal over 1-4 weeks.
Live results
35 times picked on its own · 67 times inside a blend (57 beat the stock) · updated 2026-06-06Data dependencies
- Daily prices
Adjusted-close OHLCV for every US-listed ticker; primary price feed.
- Google trends svi
Google search-volume index for the ticker as keyword.
Expected edge
- Reported return
- +1.5% / -1.0%
- Reported Sharpe
- 0.5-0.8
- Tested over
- 2004-2008 (Da-Engelberg-Gao)
+1.5% over 2w then -1.0% over 1mo; Sharpe ~0.5-0.8.
Related families
When WallStreetBets suddenly piles into a name AND the chart is already trending up, that's a 2-5 day continuation. When they pile in and the chart isn't cooperating, ride the fade once the noise dies down a week later.
When Google Trends search interest spikes AND earnings-call sentiment confirms the direction, you get a ~1-3% short-term move.
When stock message-board chatter spikes on a name already declining, we short it for the next 1-2 weeks because the noise tends to fade.
Explore Google Svi Attention Spike on alphactor.ai
See which tickers this family is currently firing on, with live signals and rankings.