Loading market view
Loading market view
Loading correlations
Correlation
of % moves
-43%
In sync
of periods
36%
History
daysdays · through 2026-09-10
165
These move in the same direction about 36% of the time
Their swing sizes loosely mirror each other (~19% of the pattern is shared).
A real but noisy link — useful as context, risky as a standalone signal.
On a log scale so equal % moves take equal vertical space — best when one series has grown much faster than the other.
What to Watch
Slipping looser
The recent pattern is looser than its long-run baseline — keep an eye on whether this sticks.
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Advanced
Statistics
In sync(i)
36%
Headline metric
Movement correlation(i)
-43%
Based on % moves
95% CI
-55% → -30%
Likely range of correlation
Pipeline
Pipeline Summary
165 paired data points survived the daily window.
Raw input
1,254
165
Normalized
1,254
165
Prepared
1,254
165
Aligned
165
165
Invalid removed
R²(i)
19%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
164
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.
164 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
+20%
35 periods · Return correlation when both series rose
Both Falling
-6%
24 periods · Return correlation when both series fell
Diverging
-54%
105 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,089
A: 1089 / B: 0
Series A
Marvell Technology, Inc. Common Stock (MRVL)
MRVL
Stock · 1,254 raw → 1,254 prepared
Series B
Marsh (MRSH)
MRSH
Stock · 165 raw → 165 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
-0.1406
Linear regression slope.
Intercept
0.0007
Linear regression intercept.
Saved 4 months ago · ID: stock-mrsh_stock-mrvl_daily_5y