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Correlation Analysis

Amazon.Com Inc vs American Tower Corporation

AMZN vs AMT

-0.192

Weak inverse

When one moves up, the other tends to move down.

AMZN logo

Amazon.Com Inc

AMZN

Amazon is the leading online retailer and marketplace for third party sellers. Retail related revenue represents approximately 74% of total, followed by Amazon Web Services (17%), and advertising services (9%). International segments constitute 22% of Amazon's total revenue, led by Germany, the United Kingdom, and Japan.

Market cap 2.3T

AMT logo

American Tower Corporation

AMT

American Tower owns and operates about 150,000 wireless towers throughout the US, Asia, Latin America, Europe, and Africa. It also owns and/or operates 30 data centers in 11 US markets after acquiring CoreSite. The company's customer base in the tower business is very concentrated, with most revenue in each market generated by the top three or four mobile carriers. The company operates more than 40,000 towers in the US, which accounted for about half of total revenue in 2025. Outside the US, American Tower operates about 47,000 towers in Latin America (dominated by Brazil), 33,000 towers in Europe, and 28,000 towers in Africa. American Tower operates as a REIT.

Market cap 82.1B · 4,866 employees

Apr 9, 2021 — Apr 7, 2026Daily1,254 observationsStockStockTechnologyReal Estate

Time Series

Rebased to 100

Green: AMZNGray: AMT36 of 1,254 points (sampled)

Who Moves First

AMT leads AMZN by 6 days

AMT tends to move before AMZN.

Best correlation after shifting: -0.196 (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

-0.072

10 periods · Return correlation when both series rose

Both Falling

+0.350

7 periods · Return correlation when both series fell

Diverging

-0.757

18 periods · Return correlation when series moved apart

R-Squared

3.7%

Share of variance in one series explained by the other.

Trend Agreement

54.2%

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: [-0.244, -0.138]

Scatter

XY Regression

75.380100120140160180200220240241.9162.7180200220240260280300303.6Amazon.Com IncAmerican Tower CorporationData pointsFit (r = -0.192)

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

AMZN logo

Amazon.Com Inc

AMZN

Market cap 2.3T

Stock · 1,254 raw → 1,254 prepared

Series B

AMT logo

American Tower Corporation

AMT

Market cap 82.1B · 4,866 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

-0.1520

Linear regression slope.

Intercept

242.6608

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 3 hours ago · ID: stock-amzn-vs-stock-amt-daily-20260408-y4bqod