Correlation Analysis
Costco Wholesale Corp vs Coca-Cola Company
COST vs KO
+0.802
Strong 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
Coca-Cola Company
↗KO
Founded in 1886, Atlanta-headquartered Coca-Cola is the world's largest nonalcoholic beverage company, with a strong portfolio of 200 brands covering key categories including carbonated soft drinks, water, sports, energy, juice, and coffee. Together with bottlers and distribution partners, the company sells finished beverage products bearing Coca-Cola and licensed brands through retailers and food-service locations in more than 200 countries and regions globally. Coca-Cola generates around 60% of its total revenue overseas, with sizable contributions from emerging economies in Latin America and Asia-Pacific.
Market cap 332.4B
Time Series
Relative Performance
Who Moves First
COST leads KO by 6 days
COST tends to move before KO.
After testing 13 timing shifts, the strongest relationship was +0.805 (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
+0.585
15 periods · Return correlation when both series rose
Both Falling
N/A
4 periods · Return correlation when both series fell
Diverging
-0.608
16 periods · Return correlation when series moved apart
R-Squared
64.4%
Share of variance in one series explained by the other.
Trend Agreement
63.8%
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: [0.782, 0.821]
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
Coca-Cola Company
KO
Market cap 332.4B
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
0.0223
Linear regression slope.
Intercept
47.8135
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-cost-vs-stock-ko-daily