Correlation Analysis
Alphabet Inc. Class C Capital Stock vs CoStar Group Inc
GOOG vs CSGP
-0.328
Light inverse
When one moves up, the other tends to move down.
Alphabet Inc. Class C Capital Stock
↗GOOG
Alphabet is a holding company that wholly owns internet giant Google. The California-based company derives slightly less than 90% of its revenue from Google services, the vast majority of which is advertising sales. Alongside online ads, Google services houses sales stemming from Google's subscription services (YouTube TV and YouTube Music, among others), platforms (sales and in-app purchases on Play Store), and devices (Chromebooks, Pixel smartphones, and smart home products such as Chromecast). Google's cloud computing platform accounts for roughly 10% of Alphabet's revenue. The firm's investments in up-and-coming technologies such as self-driving cars (Waymo), health (Verily), and internet access (Google Fiber) make up the rest.
Market cap 3.6T · 190,820 employees
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
Time Series
Rebased to 100
Who Moves First
GOOG leads CSGP by 6 days
GOOG tends to move before CSGP.
Best correlation after shifting: -0.356 (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
-0.301
9 periods · Return correlation when both series rose
Both Falling
-0.504
6 periods · Return correlation when both series fell
Diverging
-0.583
20 periods · Return correlation when series moved apart
R-Squared
10.8%
Share of variance in one series explained by the other.
Trend Agreement
64.4%
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: [-0.377, -0.278]
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
Alphabet Inc. Class C Capital Stock
GOOG
Market cap 3.6T · 190,820 employees
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
11
Estimated crossover points between normalized spreads.
Slope
-0.0602
Linear regression slope.
Intercept
86.1347
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 3 hours ago · ID: stock-goog-vs-stock-csgp-daily-20260408-zpnwoy