Correlation Analysis
Alphabet Inc. Class C Capital Stock vs Robinhood Markets, Inc. Class A Common Stock
GOOG vs HOOD
+0.836
Strong 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
Robinhood Markets, Inc. Class A Common Stock
↗HOOD
Robinhood is a diversified financial services provider best known for its retail brokerage platform, which historically caters to a young, risk-seeking clientele that trades heavily on margin and in higher-risk asset classes like options, futures, cryptocurrencies, and more recently, in prediction markets. As those customers' financial needs have begun to mature, Robinhood has rolled out a suite of more conventional products, from retirement accounts to high-yield cash sweep accounts to nascent advisory services (Robinhood Strategies). With $322 billion in customer assets and 27 million active accounts at year-end 2025, the firm has emerged as a significant player in the large and quickly growing US brokerage market.
Market cap 62.8B · 2,900 employees
Time Series
Relative Performance
Who Moves First
HOOD leads GOOG by 6 days
HOOD tends to move before GOOG.
After testing 13 timing shifts, the strongest relationship was +0.851 (they moved in the same direction).
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
+0.388
15 periods · Return correlation when both series rose
Both Falling
+0.075
9 periods · Return correlation when both series fell
Diverging
-0.655
11 periods · Return correlation when series moved apart
R-Squared
69.8%
Share of variance in one series explained by the other.
Trend Agreement
63.9%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,177
Deep shared window — 1,177 usable pairs.
Significance
p < 0.001
95% CI: [0.818, 0.852]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,177 paired data points survived the daily window.
Raw input
1,254
1,177
Normalized
1,254
1,177
Prepared
1,254
1,177
Aligned
1,177
1,177
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
77
A: 77 / 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
Robinhood Markets, Inc. Class A Common Stock
HOOD
Market cap 62.8B · 2,900 employees
Stock · 1,177 raw → 1,177 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
47
Estimated crossover points between normalized spreads.
Slope
0.5242
Linear regression slope.
Intercept
-48.5586
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
GOOG
Alphabet Inc. Class C Capital Stock
Highest
+0.948
Amphenol Corporation
APH · 1,254 data points
Lowest
-0.861
Fiserv, Inc. Common Stock
FISV · 644 data points
HOOD
Robinhood Markets, Inc. Class A Common Stock
Highest
+0.884
JPMorgan Chase & Co.
JPM · 1,177 data points
Lowest
+0.288
Exxon Mobil Corporation
XOM · 1,177 data points
Saved 5 hours ago · ID: stock-goog-vs-stock-hood-daily-20260408-2wj8tc