Correlation Analysis
Alphabet Inc. Class C Capital Stock vs Marsh
GOOG vs MRSH
+0.626
Moderate positive
When one moves up, the other tends to follow.
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
Marsh
↗MRSH
Marsh McLennan is a professional services firm that provides advice and solutions in the areas of risk, strategy, and human capital. The company operates through two main segments: risk and insurance services and consulting. In risk and insurance services, the firm offers services via Marsh (an insurance broker) and Guy Carpenter (a risk and reinsurance specialist). The consulting division comprises Mercer (a provider of human resource services) and Oliver Wyman (a management and economic consultancy). About half of its revenue is generated outside the US.
Market cap 84.5B · 55,700 employees
Time Series
Rebased to 100
Who Moves First
MRSH leads GOOG by 1 day
MRSH tends to move before GOOG.
Best correlation after shifting: +0.630 (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
N/A
4 periods · Return correlation when both series rose
Both Falling
+0.201
10 periods · Return correlation when both series fell
Diverging
-0.608
21 periods · Return correlation when series moved apart
R-Squared
39.2%
Share of variance in one series explained by the other.
Trend Agreement
46.4%
How often both series moved in the same direction period-to-period.
Overlap Quality
57
Thin shared window — 57 usable pairs.
Significance
p < 0.001
95% CI: [0.437, 0.762]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
57 paired observations survived the daily window.
Raw input
1,254
57
Normalized
1,254
57
Prepared
1,254
57
Aligned
57
57
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,197
A: 1197 / 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
Marsh
MRSH
Market cap 84.5B · 55,700 employees
Stock · 57 raw → 57 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
7
Estimated crossover points between normalized spreads.
Slope
0.2106
Linear regression slope.
Intercept
113.0077
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 3 hours ago · ID: stock-goog-vs-stock-mrsh-daily-20260408-itp9k4