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Correlation
of % moves
-20%
In sync
of periods
44%
History
daysdays · through 2026-09-04
162
These move in the same direction about 44% of the time
Their swing sizes only faintly mirror each other (~4% 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.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Advanced
Statistics
In sync(i)
44%
Headline metric
Movement correlation(i)
-20%
Based on % moves
95% CI
-35% → -5%
Likely range of correlation
Pipeline
Pipeline Summary
162 paired data points survived the daily window.
Raw input
162
1,254
Normalized
162
1,254
Prepared
162
1,254
Aligned
162
162
Invalid removed
R²(i)
4%
Variance explained
Significance
p < 0.01
Statistical confidence
Data points(i)
161
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
-20%
No shift — both series at their actual dates.
161 overlapping points at this shift
Baseline
-20%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-20%
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
-33%
37 periods · Return correlation when both series rose
Both Falling
-11%
33 periods · Return correlation when both series fell
Diverging
-53%
91 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,092
A: 0 / B: 1092
Series A
Marsh (MRSH)
MRSH
Stock · 162 raw → 162 prepared
Series B
iShares Gold Trust (IAU)
IAU
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
14
Estimated crossover points between normalized spreads.
Slope
-0.2351
Linear regression slope.
Intercept
-0.0003
Linear regression intercept.
Saved 4 months ago · ID: stock-iau_stock-mrsh_daily_5y