Correlation Analysis
Tesla, Inc. Common Stock vs Norfolk Southern Corp.
TSLA vs NSC
+0.602
Moderate positive
When one moves up, the other tends to follow.
Tesla, Inc. Common Stock
↗TSLA
Tesla is a vertically integrated battery electric vehicle automaker and developer of real world artificial intelligence software, which includes autonomous driving and humanoid robots. The company has multiple vehicles in its fleet, which include luxury and midsize sedans, crossover SUVs, a light truck, and a semi truck. Tesla also plans to begin selling a sports car and offer a robotaxi service. Global deliveries in 2025 were nearly 1.64 million vehicles. The company sells batteries for stationary storage for residential and commercial properties including utilities and solar panels and solar roofs for energy generation. Tesla also owns a fast-charging network and an auto insurance business.
Market cap 1.3T
Norfolk Southern Corp.
↗NSC
Class I railroad Norfolk Southern operates in the Eastern United States. On more than 20,000 miles of track, the rail hauls shipments of coal, intermodal traffic, and a diverse mix of automotive, agricultural, metal, chemical, and forest products.
Market cap 64.7B · 19,300 employees
Who Moves First
in sync
TSLA and NSC tend to move at the same time.
Best correlation after shifting: +0.602 (13 shifts scanned)
Do They Crash Together?
Correlation by Market Regime
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
+0.633
10 periods · Return correlation when both series rose
Both Falling
+0.307
9 periods · Return correlation when both series fell
Diverging
-0.678
16 periods · Return correlation when series moved apart
R-Squared
36.3%
Share of variance in one series explained by the other.
Trend Agreement
57.6%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,254
Deep shared window — 1,254 usable pairs.
Significance
p < 0.001
95% CI: [0.566, 0.637]
Time Series
Rebased to 100
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired observations survived the daily window.
Raw input
1,254
1,254
Normalized
1,254
1,254
Prepared
1,254
1,254
Aligned
1,254
1,254
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
0
A: 0 / B: 0
Series A
Tesla, Inc. Common Stock
TSLA
Market cap 1.3T
Stock · 1,254 raw → 1,254 prepared
Series B
Norfolk Southern Corp.
NSC
Market cap 64.7B · 19,300 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
59
Estimated crossover points between normalized spreads.
Slope
0.2008
Linear regression slope.
Intercept
194.9259
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
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