Correlation Analysis
Coupang, Inc. vs Walmart Inc. Common Stock
CPNG vs WMT
+0.192
Weak positive
When one moves up, the other tends to follow.
Coupang, Inc.
↗CPNG
Coupang is South Korea's largest e-commerce platform that sells both owned and third-party inventory. Headquartered in the US, Coupang operates e-commerce businesses mainly in South Korea and Taiwan. The company has built an integrated logistics network that covers the entirety of South Korea, with extensive fulfillment centers that ensure timely delivery, even for orders placed seconds before midnight. Outside of its bread-and-butter e-commerce business, Coupang has expanded into Rocket delivery services to third-party merchants (fulfillment and logistics by Coupang), online grocery delivery Rocket Fresh, online meal delivery (Eats), e-commerce in Taiwan, luxury e-commerce (Farfetch), and travel.
Market cap 35.7B · 108,000 employees
Walmart Inc. Common Stock
↗WMT
Since its founding in 1962, Walmart has become the world's largest retailer, operating over 10,700 stores globally (including 4,600 namesake locations on its home turf and another 600 Sam's Club outlets) and growing its e-commerce presence, attracting 270 million customers weekly. In aggregate, the firm posted more than $680 billion in fiscal 2025 sales. Its core operations span three reporting segments: Walmart US (68% of fiscal 2025 sales), Walmart International (18%), and Sam's Club (14%). Within the US, nearly 60% of its $465 billion in fiscal 2025 revenue came from its grocery offerings, with another quarter from general merchandise. Internationally, Walmart's operations are concentrated in Mexico, though it also has budding exposure to India.
Market cap 1T
Time Series
Relative Performance
Who Moves First
WMT leads CPNG by 6 days
WMT tends to move before CPNG.
After testing 13 timing shifts, the strongest relationship was +0.209 (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
+0.548
12 periods · Return correlation when both series rose
Both Falling
+0.419
7 periods · Return correlation when both series fell
Diverging
-0.653
16 periods · Return correlation when series moved apart
R-Squared
3.7%
Share of variance in one series explained by the other.
Trend Agreement
53.4%
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: [0.138, 0.245]
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
Coupang, Inc.
CPNG
Market cap 35.7B · 108,000 employees
Stock · 1,254 raw → 1,254 prepared
Series B
Walmart Inc. Common Stock
WMT
Market cap 1T
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
0.6682
Linear regression slope.
Intercept
51.6398
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-cpng-vs-stock-wmt-daily