Correlation Analysis
Costco Wholesale Corp vs Monster Beverage Corporation
COST vs MNST
+0.634
Moderate positive
When one moves up, the other tends to follow.
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
Monster Beverage Corporation
↗MNST
Monster Beverage is a leader in the energy drink category within the nonalcoholic ready-to-drink beverage market, generating two-thirds of revenue in the US and Canada. The well-known Monster trademark includes brands such as Monster Energy, Monster Ultra, Java Monster, and Juice Monster. The firm also owns other energy drink brands, such as Reign, NOS, Burn, Bang, and Mother, and brews and distributes beers and flavored malt beverages following the acquisition of a craft brewer in 2022. Monster controls branding and innovation but outsources beverage manufacturing and packaging to co-packers and finished goods distribution to bottlers in the global Coca-Cola system (pursuant to a 20-year agreement inked in 2015). Coke is the largest shareholder of Monster, owning a 20% stake.
Market cap 72.5B · 6,891 employees
Time Series
Relative Performance
Who Moves First
in sync
COST and MNST tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.634 (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
+0.385
10 periods · Return correlation when both series rose
Both Falling
N/A
4 periods · Return correlation when both series fell
Diverging
-0.685
21 periods · Return correlation when series moved apart
R-Squared
40.3%
Share of variance in one series explained by the other.
Trend Agreement
63.7%
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: [0.600, 0.666]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired data points 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
Costco Wholesale Corp
COST
Market cap 451.9B
Stock · 1,254 raw → 1,254 prepared
Series B
Monster Beverage Corporation
MNST
Market cap 72.5B · 6,891 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
0.0279
Linear regression slope.
Intercept
34.8178
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-cost-vs-stock-mnst-daily