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Correlation Analysis

Tesla, Inc. Common Stock vs Comfort Systems USA, Inc.

TSLA vs FIX

+0.656

Strong positive

When one moves up, the other tends to follow.

TSLA logo

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

FIX logo

Comfort Systems USA, Inc.

FIX

Comfort Systems USA Inc provides comprehensive mechanical contracting services, including heating, ventilation, & air conditioning, or HVAC; plumbing; piping & controls; construction; and other electrical components. Projects are mainly for commercial, industrial, & institutional buildings, & tend to be geared toward HVAC. Revenue is roughly split between installation services for newly constructed facilities & maintenance services for existing buildings. The company installs & repairs products and systems throughout the United States. It operates in two segments, Mechanical services & Electrical services, the majority is from the Mechanical services segment.

Market cap 50.4B · 22,700 employees

Apr 9, 2021 — Apr 7, 2026Daily1,254 observationsStockStockConsumer

Who Moves First

in sync

TSLA and FIX tend to move at the same time.

Best correlation after shifting: +0.656 (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

+0.156

15 periods · Return correlation when both series rose

Both Falling

+0.738

5 periods · Return correlation when both series fell

Diverging

-0.383

15 periods · Return correlation when series moved apart

R-Squared

43.1%

Share of variance in one series explained by the other.

Trend Agreement

61.1%

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: [0.623, 0.687]

Time Series

Rebased to 100

Green: TSLAGray: FIX36 of 1,254 points (sampled)

Scatter

XY Regression

110200300400500509-3702004006008001,0001,2001,4001,533Tesla, Inc. Common StockComfort Systems USA, Inc.Data pointsFit (r = 0.656)

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

TSLA logo

Tesla, Inc. Common Stock

TSLA

Market cap 1.3T

Stock · 1,254 raw → 1,254 prepared

Series B

FIX logo

Comfort Systems USA, Inc.

FIX

Market cap 50.4B · 22,700 employees

Stock · 1,254 raw → 1,254 prepared

Sign agreement

100.0%

How often both values share the same sign.

Zero crossings

15

Estimated crossover points between normalized spreads.

Slope

2.5024

Linear regression slope.

Intercept

-365.0942

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 3 hours ago · ID: stock-tsla-vs-stock-fix-daily-20260408-x995ea