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Correlation
of % moves
+23%
In sync
of periods
56%
History
daysdays · through 2026-09-04
180
These move in the same direction about 56% of the time
Their swing sizes only faintly line up (~5% 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
Slipping tighter
The recent pattern is tighter than its long-run baseline — keep an eye on whether this sticks.
Decouples in drawdowns
The relationship weakens when both prices are falling — don't count on this pair as a hedge under stress.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Advanced
Statistics
In sync(i)
56%
Headline metric
Movement correlation(i)
+23%
Based on % moves
95% CI
+9% → +37%
Likely range of correlation
Pipeline
Pipeline Summary
180 paired data points survived the daily window.
Raw input
180
1,254
Normalized
180
1,254
Prepared
180
1,254
Aligned
180
180
Invalid removed
R²(i)
5%
Variance explained
Significance
p < 0.01
Statistical confidence
Data points(i)
179
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
+23%
No shift — both series at their actual dates.
179 overlapping points at this shift
Baseline
+23%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+23%
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
+34%
51 periods · Return correlation when both series rose
Both Falling
+3%
49 periods · Return correlation when both series fell
Diverging
-50%
79 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,074
A: 0 / B: 1074
Series A
Medline Inc. Class A common stock (MDLN)
MDLN
Stock · 180 raw → 180 prepared
Series B
Broadridge Financial Solutions Inc (BR)
BR
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
4
Estimated crossover points between normalized spreads.
Slope
0.1627
Linear regression slope.
Intercept
-0.0015
Linear regression intercept.
Saved 4 months ago · ID: stock-br_stock-mdln_daily_5y