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Correlation Analysis

Amazon.Com Inc vs International Business Machines Corporation

AMZN vs IBM

+0.819

Strong positive

When one moves up, the other tends to follow.

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

IBM logo

International Business Machines Corporation

IBM

Incorporated in 1911, International Business Machines, or IBM, is one of the oldest technology companies in the world. It provides software, IT consulting services, and hardware to help business customers modernize their technology workflows. IBM operates in 175 countries and employs approximately 300,000 people. The company has a robust roster of business partners to service its clients, which includes 95% of all Fortune 500 companies. IBMs products, including Red Hat, watsonx, and mainframes, handle some of the worlds most important data workloads in areas like finance and retail.

Market cap 231.5B

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

Time Series

Rebased to 100

Green: AMZNGray: IBM36 of 1,254 points (sampled)

Who Moves First

in sync

AMZN and IBM tend to move at the same time.

Best correlation after shifting: +0.819 (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

+0.313

13 periods · Return correlation when both series rose

Both Falling

+0.665

6 periods · Return correlation when both series fell

Diverging

-0.377

16 periods · Return correlation when series moved apart

R-Squared

67.1%

Share of variance in one series explained by the other.

Trend Agreement

57.8%

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: [0.800, 0.837]

Scatter

XY Regression

75.380100120140160180200220240241.9105.6150200250300325.2Amazon.Com IncInternational Business Machines CorporationData pointsFit (r = 0.819)

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

IBM logo

International Business Machines Corporation

IBM

Market cap 231.5B

Stock · 1,254 raw → 1,254 prepared

Sign agreement

100.0%

How often both values share the same sign.

Zero crossings

49

Estimated crossover points between normalized spreads.

Slope

1.1195

Linear regression slope.

Intercept

-6.4022

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 3 hours ago · ID: stock-amzn-vs-stock-ibm-daily-20260408-tieckk