Correlation Analysis
Apple Inc. vs Simon Property Group, Inc.
AAPL vs SPG
+0.829
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
Simon Property Group, Inc.
↗SPG
Simon Property Group is the largest retail real estate investment trust in the United States. Its portfolio includes an interest in 254 properties: 114 traditional malls, 108 premium outlets, 14 Mills centers (a combination of a traditional mall, outlet center, and big-box retailers), six lifestyle centers, and 12 other retail properties. Simon's portfolio averaged $736 in sales per square foot over the trailing 12 months. The company also owns a 22% interest in Klépierre, a European retail company with investments in shopping centers in 14 countries, and joint-venture interests in 33 premium outlets across 14 countries.
Market cap 61.8B · 3,600 employees
Time Series
Relative Performance
Who Moves First
in sync
AAPL and SPG tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.829 (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
+0.310
12 periods · Return correlation when both series rose
Both Falling
+0.895
7 periods · Return correlation when both series fell
Diverging
-0.606
16 periods · Return correlation when series moved apart
R-Squared
68.7%
Share of variance in one series explained by the other.
Trend Agreement
61.8%
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: [0.811, 0.845]
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
Simon Property Group, Inc.
SPG
Market cap 61.8B · 3,600 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
31
Estimated crossover points between normalized spreads.
Slope
0.5645
Linear regression slope.
Intercept
36.3340
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 5 hours ago · ID: stock-aapl-vs-stock-spg-daily-20260408-is6r93