Correlation Analysis
Amazon.Com Inc vs SBA Communications Corp
AMZN vs SBAC
-0.463
Moderate inverse
When one moves up, the other tends to move down.
Amazon.Com Inc
↗AMZN
Amazon is the leading online retailer and marketplace for third party sellers. Retail related revenue represents approximately 74% of total, followed by Amazon Web Services (17%), and advertising services (9%). International segments constitute 22% of Amazon's total revenue, led by Germany, the United Kingdom, and Japan.
Market cap 2.3T
SBA Communications Corp
↗SBAC
SBA Communications owns a portfolio of about 46,000 wireless towers throughout North America, South America, and Africa. It leases space on its towers to wireless service providers, who install equipment to support their wireless networks. The company has a very concentrated customer base, with most revenue in each market generated by the top few mobile carriers. It owns more than 17,000 towers in the US, which account for about 70% of leasing revenue. Internationally, SBA's largest markets are Brazil and Guatemala, where it owns roughly 12,000 and 5,000 towers, respectively. SBA operates as a real estate investment trust.
Market cap 22.4B · 1,844 employees
Time Series
Relative Performance
Who Moves First
SBAC leads AMZN by 6 days
SBAC tends to move before AMZN.
After testing 13 timing shifts, the strongest relationship was -0.475 (they moved in opposite directions).
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
-0.376
12 periods · Return correlation when both series rose
Both Falling
+0.438
7 periods · Return correlation when both series fell
Diverging
-0.605
16 periods · Return correlation when series moved apart
R-Squared
21.4%
Share of variance in one series explained by the other.
Trend Agreement
52.6%
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: [-0.506, -0.419]
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
Amazon.Com Inc
AMZN
Market cap 2.3T
Stock · 1,254 raw → 1,254 prepared
Series B
SBA Communications Corp
SBAC
Market cap 22.4B · 1,844 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
13
Estimated crossover points between normalized spreads.
Slope
-0.6127
Linear regression slope.
Intercept
358.2672
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 5 hours ago · ID: stock-amzn-vs-stock-sbac-daily-20260408-rk7u6l