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Correlation
of values
-32%
In sync
of periods
51%
History
monthsmonths · through 2026-04
808
These move in the same direction about 51% of the time
Their swing sizes only faintly mirror each other (~10% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
Both lines start at the same point — easy to compare when growth rates are similar.
Advanced
Statistics
In sync(i)
51.2%
Headline metric
Movement correlation(i)
-32%
Based on values
95% CI
-38% → -26%
Pipeline
Pipeline Summary
808 paired data points survived the monthly window.
Raw input
808
1,360
Normalized
808
1,360
Prepared
808
1,360
Aligned
808
808
Invalid removed
Likely range of correlation
R²(i)
10.4%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
808
Deep
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
-32%
No shift — both series at their actual dates.
808 overlapping points at this shift
Baseline
-32%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-32%
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
+68%
9 periods · Return correlation when both series rose
Both Falling
N/A
4 periods · Return correlation when both series fell
Diverging
-43%
23 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
552
A: 0 / B: 552
Series A
Housing Starts
HOUST
FRED · 808 raw → 808 prepared
Series B
PPI: All Commodities
PPIACO
FRED · 1,360 raw → 1,360 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
65
Estimated crossover points between normalized spreads.
Slope
-0.0583
Linear regression slope.
Intercept
205.1565
Linear regression intercept.
Saved last month · ID: fred-houst_fred-ppiaco_monthly_5y