Correlation Analysis
Apple Inc. vs UNITEDHEALTH GROUP INCORPORATED (Delaware)
AAPL vs UNH
-0.310
Light inverse
When one moves up, the other tends to move down.
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
UNITEDHEALTH GROUP INCORPORATED (Delaware)
↗UNH
UnitedHealth Group is one of the largest private health insurers and provides medical benefits to about 51 million members globally, including 1 million outside the US as of December 2025. As a leader in employer-sponsored, self-directed, and government-backed insurance plans, UnitedHealth has obtained massive scale in medical insurance. Along with its insurance assets, UnitedHealth's Optum franchises help create a healthcare services colossus that spans everything from pharmaceutical benefits to providing outpatient care and analytics to affiliates and third parties.
Market cap 255.4B
Time Series
Rebased to 100
Who Moves First
AAPL leads UNH by 3 days
AAPL tends to move before UNH.
Best correlation after shifting: -0.311 (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
+0.315
10 periods · Return correlation when both series rose
Both Falling
-0.530
7 periods · Return correlation when both series fell
Diverging
-0.400
18 periods · Return correlation when series moved apart
R-Squared
9.6%
Share of variance in one series explained by the other.
Trend Agreement
57.2%
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: [-0.359, -0.259]
Scatter
XY Regression
Pipeline
Data quality details
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
Apple Inc.
AAPL
Market cap 3.8T
Stock · 1,254 raw → 1,254 prepared
Series B
UNITEDHEALTH GROUP INCORPORATED (Delaware)
UNH
Market cap 255.4B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
28
Estimated crossover points between normalized spreads.
Slope
-0.6487
Linear regression slope.
Intercept
585.4078
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
AAPL
Apple Inc.
Highest
+0.935
Arista Networks
ANET · 1,254 observations
Lowest
-0.847
Fiserv, Inc. Common Stock
FISV · 644 observations
UNH
UNITEDHEALTH GROUP INCORPORATED (Delaware)
Highest
-0.079
Exxon Mobil Corporation
XOM · 1,254 observations
Lowest
-0.611
Micron Technology, Inc.
MU · 1,254 observations
Saved 3 hours ago · ID: stock-aapl-vs-stock-unh-daily-20260408-dhzqe3