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Correlation
of % moves
+29%
In sync
of periods
56%
History
daysdays · through 2026-05-28
111
These move in the same direction about 56% of the time
Their swing sizes only faintly line up (~8% of the pattern is shared).
A faint pattern — interesting as colour, not strong enough to act on alone.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Tighter in drawdowns
The relationship is stronger when both prices are falling than when both are rising — typical risk-off behaviour.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Advanced
Statistics
In sync(i)
56.4%
Headline metric
Movement correlation(i)
+29%
Based on % moves
95% CI
+11% → +45%
Likely range of correlation
Pipeline
Pipeline Summary
111 paired data points survived the daily window.
Raw input
834
111
Normalized
834
111
Prepared
834
111
Aligned
111
111
Invalid removed
R²(i)
8.4%
Variance explained
Significance
p < 0.01
Statistical confidence
Data points
111
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
+29%
No shift — both series at their actual dates.
110 overlapping points at this shift
Baseline
+29%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+29%
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%
29 periods · Return correlation when both series rose
Both Falling
+46%
33 periods · Return correlation when both series fell
Diverging
-42%
48 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
723
A: 723 / B: 0
Series A
Cencora, Inc. (COR)
COR
Stock · 834 raw → 834 prepared
Series B
Medline Inc. Class A common stock (MDLN)
MDLN
Stock · 111 raw → 111 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
0.3010
Linear regression slope.
Intercept
-0.0003
Linear regression intercept.
Saved 3 weeks ago · ID: stock-cor_stock-mdln_daily_5y