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Correlation
of values
+95%
In sync
of periods
—
History
monthsmonths · through 2026-01
185
These move together
When one swings, the other almost always swings by a closely matched amount (~89% 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)
N/A
Headline metric
Movement correlation(i)
+95%
Based on values
95% CI
N/A
Pipeline
Pipeline Summary
185 paired data points survived the monthly window.
Raw input
241
11,660
Normalized
241
11,660
Prepared
241
559
Aligned
185
185
Invalid removed
Likely range
R²(i)
89%
Variance explained
Significance
N/A
Statistical confidence
Data points(i)
185
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: 0 to 0 months.
Selected shift
No shift
Correlation at this shift
+95%
No shift — both series at their actual dates.
185 overlapping points at this shift
Baseline
+95%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+95%
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.
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
430
A: 56 / B: 374
Series A
Federal Debt
GFDEBTN
FRED · 241 raw → 241 prepared
Series B
USD/ZAR Exchange Rate
DEXSFUS
FRED · 11,660 raw → 559 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
0.0000
Linear regression slope.
Intercept
2.0115
Linear regression intercept.
Saved 3 months ago · ID: fred-dexsfus_fred-gfdebtn_monthly_5y