Correlation Analysis
Amazon.Com Inc vs CoStar Group Inc
AMZN vs CSGP
+0.033
Near-zero positive
When one moves up, the other tends to follow.
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
CoStar Group Inc
↗CSGP
CoStar Group is a leading provider of commercial real estate data and marketplace listing platforms. Its data offering contains in-depth analytical information on over 5 million commercial real estate properties related to various subsectors spanning office, retail, hotels, multifamily, healthcare, industrial, self-storage, and data centers. It operates many well-respected brands such as CoStar Suite, LoopNet, Apartments.com, BizBuySell, and Lands of America, with more than 75% of its revenue classified as subscription-based. The company recently expanded its presence into Canada, the United Kingdom, Spain, and France.
Market cap 17.3B · 8,000 employees
Who Moves First
CSGP leads AMZN by 6 days
CSGP tends to move before AMZN.
Best correlation after shifting: +0.054 (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
+0.038
11 periods · Return correlation when both series rose
Both Falling
-0.331
10 periods · Return correlation when both series fell
Diverging
-0.573
14 periods · Return correlation when series moved apart
R-Squared
0.1%
Share of variance in one series explained by the other.
Trend Agreement
64.8%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,254
Deep shared window — 1,254 usable pairs.
Significance
n.s.
95% CI: [-0.022, 0.088]
Time Series
Rebased to 100
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
Amazon.Com Inc
AMZN
Market cap 2.3T
Stock · 1,254 raw → 1,254 prepared
Series B
CoStar Group Inc
CSGP
Market cap 17.3B · 8,000 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
45
Estimated crossover points between normalized spreads.
Slope
0.0082
Linear regression slope.
Intercept
75.2141
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 3 hours ago · ID: stock-amzn-vs-stock-csgp-daily-20260408-vrtniy