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Correlation
of % moves
+14%
In sync
of periods
63%
History
daysdays · through 2026-05-22
108
These move in the same direction about 63% of the time
Their swing sizes only faintly line up (~2% of the pattern is shared).
A real but noisy link — useful as context, risky as a standalone signal.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Advanced
Statistics
In sync(i)
62.6%
Headline metric
Movement correlation(i)
+14%
Based on % moves
95% CI
-5% → +32%
Likely range of correlation
Pipeline
Pipeline Summary
108 paired data points survived the daily window.
Raw input
108
300
Normalized
108
300
Prepared
108
300
Aligned
108
108
Invalid removed
R²(i)
1.9%
Variance explained
Significance
n.s.
Statistical confidence
Data points
108
Usable
Time-Shifted Correlation
See how correlation changes when one series is offset in time. A taller bar at a non-zero shift means the two move together better when one leads the other — that's a potential lead/lag signal.
Correlation by shift
Click a bar to inspect. Range: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
+14%
No shift — both series at their actual dates.
107 overlapping points at this shift
Baseline
+14%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+14%
A non-zero peak suggests one series lines up better when shifted against the other.
Stability
How the correlation evolves over time. A stable line means the relationship is reliable; large swings signal regime-dependent behavior.
Do They Crash Together?
How these series behave when markets are rising, falling, or diverging. A correlation that holds in drawdowns is very different from one that only works in rallies.
Both Rising
+10%
33 periods · Return correlation when both series rose
Both Falling
-18%
34 periods · Return correlation when both series fell
Diverging
-62%
40 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
192
A: 0 / B: 192
Series A
Medline Inc. Class A common stock (MDLN)
MDLN
Stock · 108 raw → 108 prepared
Series B
USA Rare Earth, Inc. Class A Common Stock (USAR)
USAR
Stock · 300 raw → 300 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
11
Estimated crossover points between normalized spreads.
Slope
0.3693
Linear regression slope.
Intercept
0.0062
Linear regression intercept.
Saved 2 weeks ago · ID: stock-mdln_stock-usar_daily_5y