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Correlation
of values
+37%
In sync
of periods
46%
History
monthsmonths · through 2026-04
511
These move in the same direction about 46% of the time
Their swing sizes only faintly line up (~13% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
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
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Advanced
Statistics
In sync(i)
46.4%
Headline metric
Movement correlation(i)
+37%
Based on values
95% CI
+29% → +44%
Likely range of correlation
Pipeline
Pipeline Summary
511 paired data points survived the monthly window.
Raw input
808
10,398
Normalized
808
10,398
Prepared
808
512
Aligned
511
511
Invalid removed
R²(i)
13.4%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
511
Robust
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: -18 to 18 months.
Selected shift
No shift
Correlation at this shift
+37%
No shift — both series at their actual dates.
511 overlapping points at this shift
Baseline
+37%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+37%
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%
20 periods · Return correlation when both series rose
Both Falling
-16%
19 periods · Return correlation when both series fell
Diverging
-56%
45 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
298
A: 297 / B: 1
Series A
Housing Starts
HOUST
FRED · 808 raw → 808 prepared
Series B
USD/TWD Exchange Rate
DEXTAUS
FRED · 10,398 raw → 512 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
46
Estimated crossover points between normalized spreads.
Slope
0.0034
Linear regression slope.
Intercept
26.4146
Linear regression intercept.
Saved 2 weeks ago · ID: fred-dextaus_fred-houst_monthly_5y