SeriesMagCorrSyncOverlapThrough
Correlation
+26%
of % moves
In sync
49%
of periods
History
1,254
days · through 2026-05-01
These move in the same direction about 49% of the time
Their swing sizes only faintly line up (~7% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
Time Series
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
Slipping looser
The recent pattern is looser than its long-run baseline — keep an eye on whether this sticks.
Tighter in drawdowns
The relationship is stronger when both prices are falling than when both are rising — typical risk-off behaviour.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Advanced
Statistics
In sync(i)
49.0%
Headline metric
Movement correlation(i)
+26%
Based on % moves
95% CI
+21% → +31%
Likely range of correlation
Pipeline
Pipeline Summary
1,254 paired data points survived the daily window.
Raw input
1,255
15,098
Normalized
1,255
15,098
Prepared
1,255
15,098
Aligned
1,254
1,254
Invalid removed
Explore
Top 5 by absolute correlation
Ranked across both sides of this comparison using the same dense row format as the single-symbol correlations view.
R²(i)
7.0%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
1,254
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
+26%
No shift — both series at their actual dates.
1,254 overlapping points at this shift
Baseline
+26%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+26%
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
-2%
68 periods · Return correlation when both series rose
Both Falling
-28%
67 periods · Return correlation when both series fell
Diverging
-52%
114 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
13,845
A: 1 / B: 13844
Series A
NSC
Stock · 1,255 raw → 1,255 prepared
Series B
US Economic Policy Uncertainty
USEPUINDXD
FRED · 15,098 raw → 15,098 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
241
Estimated crossover points between normalized spreads.
Slope
1.2915
Linear regression slope.
Intercept
-134.3301
Linear regression intercept.
Saved yesterday · ID: fred-usepuindxd_stock-nsc_5y