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Correlation Analysis

Apple Inc. vs Aflac Inc.

AAPL vs AFL

+0.908

Very strong positive

When one moves up, the other tends to follow.

AAPL logo

Apple Inc.

AAPL

Apple is among the largest companies in the world, with a broad portfolio of hardware and software products targeted at consumers and businesses. Apple's iPhone makes up a majority of the firm sales, and Apple's other products like Mac, iPad, and Watch are designed around the iPhone as the focal point of an expansive software ecosystem. Apple has progressively worked to add new applications, like streaming video, subscription bundles, and augmented reality. The firm designs its own software and semiconductors while working with subcontractors like Foxconn and TSMC to build its products and chips. Slightly less than half of Apple's sales come directly through its flagship stores, with a majority of sales coming indirectly through partnerships and distribution.

Market cap 3.8T

AFL logo

Aflac Inc.

AFL

Aflac Inc offers supplemental health insurance and life insurance in the United States and Japan. In addition to its cancer policies, the company has broadened its product offerings to include accident, dental and vision, disability, and long-term-care insurance. It markets its products through independent distributors, selling the majority of its policies directly to consumers at their places of work, and also reaches out to its customers outside of their worksite through digital mediums. The company has two reportable business segments: Aflac Japan, which generates the maximum revenue, and Aflac U.S.

Market cap 56.8B · 12,716 employees

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

Time Series

Rebased to 100

Green: AAPLGray: AFL36 of 1,254 points (sampled)

Who Moves First

in sync

AAPL and AFL tend to move at the same time.

Best correlation after shifting: +0.908 (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

+0.276

13 periods · Return correlation when both series rose

Both Falling

N/A

4 periods · Return correlation when both series fell

Diverging

-0.607

18 periods · Return correlation when series moved apart

R-Squared

82.5%

Share of variance in one series explained by the other.

Trend Agreement

58.3%

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: [0.898, 0.917]

Scatter

XY Regression

112.3120140160180200220240260280285.646.55060708090100110120121Apple Inc.Aflac Inc.Data pointsFit (r = 0.908)

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

AAPL logo

Apple Inc.

AAPL

Market cap 3.8T

Stock · 1,254 raw → 1,254 prepared

Series B

AFL logo

Aflac Inc.

AFL

Market cap 56.8B · 12,716 employees

Stock · 1,254 raw → 1,254 prepared

Sign agreement

100.0%

How often both values share the same sign.

Zero crossings

57

Estimated crossover points between normalized spreads.

Slope

0.4702

Linear regression slope.

Intercept

-7.4869

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 3 hours ago · ID: stock-aapl-vs-stock-afl-daily-20260408-oe47xf