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Correlation Analysis

Alphabet Inc. Class C Capital Stock vs Blackrock, Inc.

GOOG vs BLK

+0.772

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

BLK logo

Blackrock, Inc.

BLK

BlackRock is the largest asset manager in the world, with $14.041 trillion in assets under management at the end of December 2025. Its product mix is diverse, with 55% of managed assets in equity strategies, 23% in fixed income, 9% in multi-asset classes, 6% in money market funds, and 5% in alternatives. Passive strategies account for more than two-thirds of long-term AUM, with the company's ETF platform maintaining a leading market share domestically and on a global basis. Product distribution is weighted more toward institutional clients, which, by our calculations, account for around 80% of AUM. BlackRock is geographically diverse, with clients in more than 100 countries and more than one-third of managed assets coming from investors domiciled outside the US and Canada.

Market cap 149.2B · 24,900 employees

Apr 9, 2021 — Apr 7, 2026Daily1,254 observationsStockStockTechnologyFinancials

Time Series

Rebased to 100

Green: GOOGGray: BLK36 of 1,254 points (sampled)

Who Moves First

BLK leads GOOG by 6 days

BLK tends to move before GOOG.

Best correlation after shifting: +0.780 (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

+0.057

13 periods · Return correlation when both series rose

Both Falling

+0.543

7 periods · Return correlation when both series fell

Diverging

-0.577

15 periods · Return correlation when series moved apart

R-Squared

59.6%

Share of variance in one series explained by the other.

Trend Agreement

65.3%

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: [0.749, 0.794]

Scatter

XY Regression

72.7100150200250300326.95676007008009001,0001,1001,143Alphabet Inc. Class C Capital StockBlackrock, Inc.Data pointsFit (r = 0.772)

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

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

BLK logo

Blackrock, Inc.

BLK

Market cap 149.2B · 24,900 employees

Stock · 1,254 raw → 1,254 prepared

Sign agreement

100.0%

How often both values share the same sign.

Zero crossings

21

Estimated crossover points between normalized spreads.

Slope

2.1181

Linear regression slope.

Intercept

506.5860

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 3 hours ago · ID: stock-goog-vs-stock-blk-daily-20260408-zo37w8