Correlation Analysis
Tesla, Inc. Common Stock vs Comcast Corp
TSLA vs CMCSA
-0.320
Light inverse
When one moves up, the other tends to move down.
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
Comcast Corp
↗CMCSA
Comcast is made up of three parts. The core cable business owns networks capable of providing television, internet access, and phone services to 65 million US homes and businesses, or nearly half of the country. The firm provides services to about 47% of the locations in this territory. Comcast acquired NBCUniversal from General Electric in 2011. Following the spinoff of several cable networks, including CNBC, MSNBC, and USA, NBCU now consists of the NBC network, several local NBC affiliates, Bravo, the Peacock streaming platform, Universal Studios, and several theme parks. Finally, Sky, acquired in 2018, is a large television provider in the UK and Italy.
Market cap 99.5B · 179,000 employees
Time Series
Rebased to 100
Who Moves First
TSLA leads CMCSA by 6 days
TSLA tends to move before CMCSA.
Best correlation after shifting: -0.342 (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
+0.125
12 periods · Return correlation when both series rose
Both Falling
+0.590
12 periods · Return correlation when both series fell
Diverging
-0.857
11 periods · Return correlation when series moved apart
R-Squared
10.2%
Share of variance in one series explained by the other.
Trend Agreement
57.4%
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: [-0.369, -0.270]
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
Comcast Corp
CMCSA
Market cap 99.5B · 179,000 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
27
Estimated crossover points between normalized spreads.
Slope
-0.0308
Linear regression slope.
Intercept
49.3111
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
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