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Correlation Analysis

Apple Inc. vs MARATHON PETROLEUM CORPORATION

AAPL vs MPC

+0.755

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

MPC logo

MARATHON PETROLEUM CORPORATION

MPC

Marathon Petroleum is a leading integrated downstream and midstream energy company that operates 13 refineries in the Gulf Coast, Mid-Continent, and West Coast regions of the United States with an aggregate crude oil refining capacity of 3.0 million barrels per day. The company is one of the largest producers of renewable diesel in the U.S.; its Dickinson, North Dakota facility has the capacity to produce 184 million gallons per year, and its Martinez, California, joint venture facility (a 50/50 partnership with Neste) reached its full capacity of 730 million gallons per year in late 2024. Marathon also owns the general partner and approximately 64% of MPLX LP, a large-cap master limited partnership that owns and operates midstream energy infrastructure and logistics assets.

Market cap 71.1B · 18,500 employees

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

Time Series

Rebased to 100

Green: AAPLGray: MPC36 of 1,254 points (sampled)

Who Moves First

in sync

AAPL and MPC tend to move at the same time.

Best correlation after shifting: +0.755 (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

+0.139

11 periods · Return correlation when both series rose

Both Falling

N/A

3 periods · Return correlation when both series fell

Diverging

-0.700

21 periods · Return correlation when series moved apart

R-Squared

57.0%

Share of variance in one series explained by the other.

Trend Agreement

54.5%

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: [0.730, 0.778]

Scatter

XY Regression

112.3120140160180200220240260280285.637.450100150200250260.8Apple Inc.MARATHON PETROLEUM CORPORATIONData pointsFit (r = 0.755)

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

MPC logo

MARATHON PETROLEUM CORPORATION

MPC

Market cap 71.1B · 18,500 employees

Stock · 1,254 raw → 1,254 prepared

Sign agreement

100.0%

How often both values share the same sign.

Zero crossings

39

Estimated crossover points between normalized spreads.

Slope

0.8462

Linear regression slope.

Intercept

-27.5152

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 3 hours ago · ID: stock-aapl-vs-stock-mpc-daily-20260408-syh5j9