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Correlation
of values
+29%
In sync
of periods
52%
History
daysdays · through 2026-05-15
8,935
These move in the same direction about 52% of the time
Their swing sizes only faintly line up (~8% 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.
Advanced
Statistics
In sync(i)
52.3%
Headline metric
Movement correlation(i)
+29%
Based on values
95% CI
+27% → +31%
Pipeline
Pipeline Summary
8,935 paired data points survived the daily window.
Raw input
9,190
10,398
Normalized
9,190
10,398
Prepared
9,190
10,398
Aligned
8,935
8,935
Invalid removed
Likely range of correlation
R²(i)
8.3%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
8,935
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
+29%
No shift — both series at their actual dates.
8,935 overlapping points at this shift
Baseline
+29%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+29%
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
1,718
A: 255 / B: 1463
Series A
VIX
VIXCLS
FRED · 9,190 raw → 9,190 prepared
Series B
USD/TWD Exchange Rate
DEXTAUS
FRED · 10,398 raw → 10,398 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
535
Estimated crossover points between normalized spreads.
Slope
0.0940
Linear regression slope.
Intercept
28.7222
Linear regression intercept.
Saved 2 weeks ago · ID: fred-dextaus_fred-vixcls_daily_5y