Correlation Analysis
Apple Inc. vs UL Solutions Inc.
AAPL vs ULS
+0.653
Strong positive
When one moves up, the other tends to follow.
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
UL Solutions Inc.
↗ULS
UL Solutions is a global leader specializing in a broad range of product testing, inspection, and certification services. UL Solutions is the for-profit branch out of three organizations under the UL Enterprise. TIC operations make up nearly all of UL Solutions' total revenue and are composed of two segments: industrial and consumer. UL Solutions' remaining business includes software and advisory, which complements its core TIC offerings. The firm operates globally.
Market cap 16.9B · 14,851 employees
Who Moves First
in sync
AAPL and ULS tend to move at the same time.
Best correlation after shifting: +0.653 (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
-0.218
17 periods · Return correlation when both series rose
Both Falling
+0.316
7 periods · Return correlation when both series fell
Diverging
-0.804
11 periods · Return correlation when series moved apart
R-Squared
42.6%
Share of variance in one series explained by the other.
Trend Agreement
56.8%
How often both series moved in the same direction period-to-period.
Overlap Quality
497
Robust shared window — 497 usable pairs.
Significance
p < 0.001
95% CI: [0.599, 0.701]
Time Series
Rebased to 100
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
497 paired observations survived the daily window.
Raw input
1,254
497
Normalized
1,254
497
Prepared
1,254
497
Aligned
497
497
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
757
A: 757 / B: 0
Series A
Apple Inc.
AAPL
Market cap 3.8T
Stock · 1,254 raw → 1,254 prepared
Series B
UL Solutions Inc.
ULS
Market cap 16.9B · 14,851 employees
Stock · 497 raw → 497 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
17
Estimated crossover points between normalized spreads.
Slope
0.3582
Linear regression slope.
Intercept
-21.4538
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 3 hours ago · ID: stock-aapl-vs-stock-uls-daily-20260408-h2ynd2