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Correlation
of values
-47%
In sync
of periods
53%
History
monthsmonths · through 2026-04
664
These move in the same direction about 53% of the time
Their swing sizes loosely mirror each other (~22% 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
Decouples in drawdowns
The relationship weakens when both prices are falling — don't count on this pair as a hedge under stress.
Advanced
Statistics
In sync(i)
53.1%
Headline metric
Movement correlation(i)
-47%
Based on values
95% CI
-52% → -41%
Likely range of correlation
Pipeline
Pipeline Summary
664 paired data points survived the monthly window.
Raw input
1,360
13,869
Normalized
1,360
13,869
Prepared
1,360
665
Aligned
664
664
Invalid removed
R²(i)
21.9%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
664
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
-47%
No shift — both series at their actual dates.
664 overlapping points at this shift
Baseline
-47%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-47%
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
+46%
12 periods · Return correlation when both series rose
Both Falling
-14%
9 periods · Return correlation when both series fell
Diverging
-24%
16 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
697
A: 696 / B: 1
Series A
PPI: All Commodities
PPIACO
FRED · 1,360 raw → 1,360 prepared
Series B
NZD/USD Exchange Rate
DEXUSNZ
FRED · 13,869 raw → 665 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
-0.0017
Linear regression slope.
Intercept
0.9758
Linear regression intercept.
Saved 2 weeks ago · ID: fred-dexusnz_fred-ppiaco_monthly_5y