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Equifax, Incorporated (EFX) vs NZD/USD Exchange Rate
Correlation
of % moves
+21%
In sync
of periods
58%
History
daysdays · through 2026-05-15
1,237
These move in the same direction about 58% of the time
Their swing sizes only faintly line up (~5% 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
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)
58.0%
Headline metric
Movement correlation(i)
+21%
Based on % moves
95% CI
+16% → +27%
Likely range of correlation
Pipeline
Pipeline Summary
1,237 paired data points survived the daily window.
Raw input
1,253
13,869
Normalized
1,253
13,869
Prepared
1,253
13,869
Aligned
1,237
1,237
Invalid removed
R²(i)
4.6%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
1,237
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: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
+21%
No shift — both series at their actual dates.
1,236 overlapping points at this shift
Baseline
+21%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+21%
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
+28%
40 periods · Return correlation when both series rose
Both Falling
+18%
53 periods · Return correlation when both series fell
Diverging
-53%
54 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
12,648
A: 16 / B: 12632
Series A
Equifax, Incorporated (EFX)
EFX
Stock · 1,253 raw → 1,253 prepared
Series B
NZD/USD Exchange Rate
DEXUSNZ
FRED · 13,869 raw → 13,869 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
37
Estimated crossover points between normalized spreads.
Slope
0.0675
Linear regression slope.
Intercept
-0.0002
Linear regression intercept.
Saved 2 weeks ago · ID: fred-dexusnz_stock-efx_daily_5y