MRNA just had its biggest 20-day run since Mar 2026
MRNA's 20-day move is at +35% — biggest 20-day run, in the top 7.7% of its 10-year range. The last 17 times MRNA reached this extreme, the median move over the next 15 trading days was -0.3% (47% finished higher).
This is a base rate from MRNA'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 MRNA 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.
See MRNA's full cohort of historical analogs and calibrated outcome distribution:
MRNA cohort →Open in Chart Library