Analyst Recommendation Revision Drift
In plain terms
When 2 or more analyst upgrades (or downgrades) cluster on the same stock within 2 weeks, the stock drifts in that direction for 2-6 weeks. Go long upgrade clusters, short downgrade clusters.
How it works
Cluster upgrades or downgrades (>= 2 same-direction rating-transition events within 14 days) predict drift over the subsequent 10/20/30 trading days. Womack 1996 documents +2-4% on upgrade clusters; Jegadeesh-Kim 2009 shows symmetric -2-3% on downgrade clusters. The herd-effect literature shows clusters resolve disagreement uncertainty.
Live results
0 times picked on its own · 5 times inside a blend (1 beat the stock) · updated 2026-06-06Data dependencies
- Daily prices
Adjusted-close OHLCV for every US-listed ticker; primary price feed.
- Analyst estimates
A data feed this strategy reads, refreshed on its normal schedule.
Expected edge
- Reported return
- +/-2-4% over 10-30d
- Tested over
- T+1 to T+30d
+2-4% LONG / -2-3% SHORT over 10-30d on cluster events.
Example tickers where this is likely to fire
Illustrative only, the signal fires based on the live data, not a fixed list.
Related families
A big overnight gap NOT preceded by an analyst revision is mispriced — the revision arrives ~5 days later and the price drifts further in that direction.
Approximates analyst-revision breadth from the direction of consensus EPS-estimate changes over the last four quarters (we lack per-analyst revision data). Long when estimates have been rising in most recent quarters by a meaningful amount; short when falling. A simplified stand-in for the paper's per-analyst up/down revision counts.
When analyst EPS estimates spread WAY wider than usual for a stock (top z-score over the trailing year), it's a stronger signal of unresolved disagreement than just the absolute level. Short the stock for 1-3 months.
Explore Analyst Recommendation Revision Drift on alphactor.ai
See which tickers this family is currently firing on, with live signals and rankings.