Correlation Analysis
Apple Inc. vs W.W. Grainger, Inc.
AAPL vs GWW
+0.853
Very 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
W.W. Grainger, Inc.
↗GWW
Founded in 1927, W.W. Grainger originally distributed various motors via a mail-order catalogue. Over the course of the 20th century, the firm expanded into new industrial product categories and launched its first digital catalogue in 1995. Today, the company organizes itself into two segments focused on different customer bases. Its larger segment, high-touch solutions, offers a vast array of maintenance, repair, and operations, or MRO, supplies and bespoke inventory management services to larger businesses. Its smaller segment, endless assortment, operates two online platforms, Zoro and MonotaRO, that offer comprehensive catalogues of MRO supplies to smaller businesses. Grainger has operations throughout the world but primarily generates sales within the US.
Market cap 52.9B · 25,000 employees
Time Series
Relative Performance
Who Moves First
in sync
AAPL and GWW tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.853 (they moved in the same direction).
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
-0.331
11 periods · Return correlation when both series rose
Both Falling
+0.608
7 periods · Return correlation when both series fell
Diverging
-0.757
17 periods · Return correlation when series moved apart
R-Squared
72.7%
Share of variance in one series explained by the other.
Trend Agreement
61.6%
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: [0.837, 0.867]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired data points 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
W.W. Grainger, Inc.
GWW
Market cap 52.9B · 25,000 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
5.1005
Linear regression slope.
Intercept
-192.1717
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
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