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Correlation
of values
-48%
In sync
of periods
40%
History
monthsmonths · through 2026-04
244
These move in the same direction about 40% of the time
Their swing sizes loosely mirror each other (~23% of the pattern is shared).
A real but noisy link — useful as context, risky as a standalone signal.
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
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
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)
40.3%
Headline metric
Movement correlation(i)
-48%
Based on values
95% CI
-57% → -38%
Likely range of correlation
Pipeline
Pipeline Summary
244 paired data points survived the monthly window.
Raw input
964
5,107
Normalized
964
5,107
Prepared
964
245
Aligned
244
244
Invalid removed
R²(i)
23.4%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
244
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
No shift
Correlation at this shift
-48%
No shift — both series at their actual dates.
244 overlapping points at this shift
Baseline
-48%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-48%
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
+17%
58 periods · Return correlation when both series rose
Both Falling
+26%
40 periods · Return correlation when both series fell
Diverging
-81%
145 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
721
A: 720 / B: 1
Series A
Spot Crude Oil Price: West Texas Intermediate
WTISPLC
FRED · 964 raw → 964 prepared
Series B
US Dollar Index
DTWEXBGS
FRED · 5,107 raw → 245 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
13
Estimated crossover points between normalized spreads.
Slope
-0.2827
Linear regression slope.
Intercept
126.7400
Linear regression intercept.
Saved 3 weeks ago · ID: fred-dtwexbgs_fred-wtisplc_monthly_5y