Herd Detection identifies tickers where
3 or more politicians independently trade the same stock within a
30-day rolling window. When multiple members of Congress pile into the same ticker around the same time, it suggests they may be acting on shared information — or following each other's trades.
However, historical analysis shows that
herd trades average -5.4% return. By the time multiple politicians have traded, the information edge is already priced in. Herds indicate
crowded positions where you are likely late, not early.
Severity color coding:
3-4 politicians (moderate)
5-7 politicians (crowded)
8+ politicians (extremely crowded)