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Correlation
of values
+92%
In sync
of periods
55%
History
monthsmonths · through 2026-05
557
These move in the same direction about 55% of the time
When one swings, the other almost always swings by a closely matched amount (~85% 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
Tighter in drawdowns
The relationship is stronger when both prices are falling than when both are rising — typical risk-off behaviour.
Advanced
Statistics
In sync(i)
55%
Headline metric
Movement correlation(i)
+92%
Based on values
95% CI
N/A
Likely range
Pipeline
Pipeline Summary
557 paired data points survived the monthly window.
Raw input
809
11,660
Normalized
809
11,660
Prepared
809
559
Aligned
557
557
Invalid removed
85%
Variance explained
Significance
N/A
Statistical confidence
Data points(i)
557
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
+92%
No shift — both series at their actual dates.
557 overlapping points at this shift
Baseline
+92%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+92%
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
+32%
17 periods · Return correlation when both series rose
Both Falling
+55%
7 periods · Return correlation when both series fell
Diverging
-44%
19 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
254
A: 252 / B: 2
Series A
Monetary Base
BOGMBASE
FRED · 809 raw → 809 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
0.0025
Linear regression slope.
Intercept
3.0580
Linear regression intercept.
Saved 3 months ago · ID: fred-bogmbase_fred-dexsfus_monthly_5y