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Correlation
of values
+92%
In sync
of periods
76%
History
monthsmonths · through 2026-04
214
These move in the same direction about 76% of the time
When one swings, the other almost always swings by a closely matched amount (~85% of the pattern is shared).
Strong enough to use as a signal — check the stability and regime notes below before relying on it.
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
USD/LKR Exchange Rate moves ~18 months before Potential GDP
Watch USD/LKR Exchange Rate for an early read on Potential GDP.
Flips between sync and inverse
Sometimes the two move together, sometimes opposite. Don't treat this as a stable signal.
Advanced
Statistics
In sync(i)
76.2%
Headline metric
Movement correlation(i)
+92%
Based on values
95% CI
+90% → +94%
Pipeline
Pipeline Summary
214 paired data points survived the monthly window.
Raw input
352
13,015
Normalized
352
13,015
Prepared
352
641
Aligned
214
214
Invalid removed
Likely range of correlation
R²(i)
84.6%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
214
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: -18 to 18 months.
Selected shift
-18 months
Correlation at this shift
+99%
+7% stronger than no-shift baseline
USD/LKR Exchange Rate shifted 18 months later. Reads: "Does Potential GDP today line up with USD/LKR Exchange Rate 18 months ago?"
196 overlapping points at this shift
Baseline
+92%
No-shift correlation, matching the main time-series chart above.
Peak shift
-18 months
+99%
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
+23%
160 periods · Return correlation when both series rose
Both Falling
N/A
0 periods · Return correlation when both series fell
Diverging
-54%
53 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
565
A: 138 / B: 427
Series A
Potential GDP
GDPPOT
FRED · 352 raw → 352 prepared
Series B
USD/LKR Exchange Rate
DEXSLUS
FRED · 13,015 raw → 641 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
0.0145
Linear regression slope.
Intercept
-105.6864
Linear regression intercept.
Saved 2 days ago · ID: fred-dexslus_fred-gdppot_monthly_5y