CorrlensCorrlens
Correlate

Correlation Analysis

Costco Wholesale Corp vs Robinhood Markets, Inc. Class A Common Stock

COST vs HOOD

+0.667

Strong positive

When one moves up, the other tends to follow.

COST logo

Costco Wholesale Corp

COST

Founded in 1983, Costco Wholesale now operates a global chain of membership-based warehouse clubs, delivering high-quality goods and services at consistently low prices. As of its most recent fiscal year, Costco operated approximately 910 warehouses, serving more than 80 million members across its three geographic segments: Costco US (approximately 73% of total revenue), Costco Canada (13%), and Costco International (14%).Costco's core value proposition—quality products at unbeatable prices—has yielded consistently strong member renewal rates (93% in the US and Canada and nearly 90% internationally). About 55% of Costco's fiscal 2025 revenue came from its grocery offerings, and another 25% from general merchandise.

Market cap 451.9B

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 pointsStockStockConsumer

Time Series

Relative Performance

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

Who Moves First

COST leads HOOD by 6 days

COST tends to move before HOOD.

After testing 13 timing shifts, the strongest relationship was +0.677 (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

+0.262

11 periods · Return correlation when both series rose

Both Falling

+0.198

5 periods · Return correlation when both series fell

Diverging

-0.703

19 periods · Return correlation when series moved apart

R-Squared

44.4%

Share of variance in one series explained by the other.

Trend Agreement

57.0%

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: [0.634, 0.697]

Scatter

XY Regression

3784005006007008009001,0001,060-1.1020406080100120140140.1Costco Wholesale CorpRobinhood Markets, Inc. Class A Common StockData pointsFit (r = 0.667)

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

COST logo

Costco Wholesale Corp

COST

Market cap 451.9B

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

3

Estimated crossover points between normalized spreads.

Slope

0.1183

Linear regression slope.

Intercept

-47.2162

Linear regression intercept.

Related Extremes

Highest and Lowest Correlated

Saved 6 hours ago · ID: stock-cost-vs-stock-hood-daily