Rarity radar · 2026-05-21
MU just had its biggest 20-day run since Jan 2026
MU's 20-day move is at +58% — biggest 20-day run, in the top 0.4% of its 10-year range. The last 17 times MU reached this extreme, the median move over the next 15 trading days was +7.2% (71% finished higher).
20-day move
+58%
top 0.4% in 10yr
Next 15d median
+7.2%
71% higher
Last seen
Jan 2026
Read this honestly
This is a base rate from MU's own history — what happened after prior visits to this extreme — not a prediction. 17 prior cases is a guide, not a guarantee. Extremes can persist far longer than they "should."
How Rarity Radar works
We measure MU on several conditions (distance from its 200-day average, RSI, recent momentum) against its own 10-year history, then surface the single most extreme one and the empirical forward returns that followed prior visits to that extreme.
Go deeper
See MU's full cohort of historical analogs and calibrated outcome distribution:
MU cohort →Open in Chart LibraryOther extremes on the radar
AAPL
RSI(14) 82
META
% from 200-day avg -9%
GOOGL
20-day move +14%
AMD
% from 200-day avg +96%
INTC
% from 200-day avg +155%
QCOM
20-day move +59%
DELL
% from 200-day avg +69%
CRWD
RSI(14) 94
PANW
20-day move +46%
DDOG
20-day move +71%
Built 2026-05-22T12:32:19Z. Refreshed daily. Historical data only — not financial advice.