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Correlation
of % moves
+26%
In sync
of periods
58%
History
daysdays · through 2026-09-28
693
These move in the same direction about 58% of the time
Their swing sizes only faintly line up (~7% 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.
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Advanced
Statistics
In sync(i)
58%
Headline metric
Movement correlation(i)
+26%
Based on % moves
95% CI
+19% → +33%
Likely range of correlation
Pipeline
Pipeline Summary
693 paired data points survived the daily window.
Raw input
1,253
693
Normalized
1,253
693
Prepared
1,253
693
Aligned
693
693
Invalid removed
R²(i)
7%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
692
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: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
+26%
No shift — both series at their actual dates.
692 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
+29%
81 periods · Return correlation when both series rose
Both Falling
+63%
65 periods · Return correlation when both series fell
Diverging
-54%
94 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
560
A: 560 / B: 0
Series A
Norfolk Southern Corp. (NSC)
NSC
Stock · 1,253 raw → 1,253 prepared
Series B
Texas Capital Texas Oil Index ETF (OILT)
OILT
Stock · 693 raw → 693 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
9
Estimated crossover points between normalized spreads.
Slope
0.3099
Linear regression slope.
Intercept
0.0002
Linear regression intercept.
Saved 2 weeks ago · ID: stock-nsc_stock-oilt_daily_5y
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Top 10 by absolute correlation
Ranked across both sides of this comparison using the same dense row format as the single-symbol correlations view.