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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.

GOOG logo

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

HOOD logo

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

Jul 29, 2021 — Apr 7, 2026Daily1,177 data pointsStockStockTechnology

Time Series

Relative Performance

Green: GOOGGray: HOOD36 of 1,177 points (sampled)

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

74100150200250300332.2-1.1020406080100120140140.1Alphabet Inc. Class C Capital StockRobinhood Markets, Inc. Class A Common StockData pointsFit (r = 0.836)

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

GOOG logo

Alphabet Inc. Class C Capital Stock

GOOG

Market cap 3.6T · 190,820 employees

Stock · 1,254 raw → 1,254 prepared

Series B

HOOD logo

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

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