Correlation Analysis
Alphabet Inc. Class A Common Stock vs CPIAUCSL
GOOGL vs CPIAUCSL
+0.608
Moderate positive
When one moves up, the other tends to follow.
Alphabet Inc. Class A Common Stock
↗GOOGL
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
CPIAUCSL
CPIAUCSL
Time Series
Rebased to 100
Who Moves First
CPIAUCSL leads GOOGL by 6 months
CPIAUCSL tends to move before GOOGL.
Best correlation after shifting: +0.625 (13 shifts scanned)
Stability
Rolling Correlation
How the correlation evolves over time. A stable line means the relationship is reliable; large swings signal regime-dependent behavior.
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
+0.018
22 periods · Return correlation when both series rose
Both Falling
N/A
0 periods · Return correlation when both series fell
Diverging
-0.018
13 periods · Return correlation when series moved apart
R-Squared
37.0%
Share of variance in one series explained by the other.
Trend Agreement
59.6%
How often both series moved in the same direction period-to-period.
Overlap Quality
58
Thin shared window — 58 usable pairs.
Significance
p < 0.001
95% CI: [0.415, 0.749]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
58 paired observations survived the monthly window.
Raw input
1,254
949
Normalized
1,254
949
Prepared
61
949
Aligned
58
58
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
894
A: 3 / B: 891
Series A
Alphabet Inc. Class A Common Stock
GOOGL
Market cap 3.6T
Stock · 1,254 raw → 61 prepared
Series B
CPIAUCSL
FRED · 949 raw → 949 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
7
Estimated crossover points between normalized spreads.
Slope
0.1925
Linear regression slope.
Intercept
273.7987
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
GOOGL
Alphabet Inc. Class A Common Stock
Highest
+0.876
Nvidia Corp
NVDA · 1,254 observations
Lowest
+0.099
DGS2
DGS2 · 1,244 observations
Saved 4 hours ago · ID: stock-googl-vs-fred-cpiaucsl-monthly-20260408-lgjfgz