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Correlation
of % moves
+43%
In sync
of periods
74%
History
daysdays · through 2026-09-08
163
These move in the same direction about 74% of the time
Their swing sizes loosely line up (~18% of the pattern is shared).
Strong enough to use as a signal — check the stability and regime notes below before relying on it.
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)
74%
Headline metric
Movement correlation(i)
+43%
Based on % moves
95% CI
+29% → +55%
Likely range of correlation
Pipeline
Pipeline Summary
163 paired data points survived the daily window.
Raw input
163
1,253
Normalized
163
1,253
Prepared
163
1,253
Aligned
163
163
Invalid removed
R²(i)
18%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
162
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
+43%
No shift — both series at their actual dates.
162 overlapping points at this shift
Baseline
+43%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+43%
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
+41%
61 periods · Return correlation when both series rose
Both Falling
-4%
59 periods · Return correlation when both series fell
Diverging
-53%
42 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,090
A: 0 / B: 1090
Series A
Marsh (MRSH)
MRSH
Stock · 163 raw → 163 prepared
Series B
Broadridge Financial Solutions Inc (BR)
BR
Stock · 1,253 raw → 1,253 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
13
Estimated crossover points between normalized spreads.
Slope
0.5123
Linear regression slope.
Intercept
-0.0016
Linear regression intercept.
Saved 4 months ago · ID: stock-br_stock-mrsh_daily_5y