Correlation Analysis
Medline Inc. Class A common stock vs Walmart Inc. Common Stock
MDLN vs WMT
+0.509
Moderate positive
When one moves up, the other tends to follow.
Medline Inc. Class A common stock
↗MDLN
Medline is the largest medical-surgical products and supply chain solutions provider in the US. The company generates over 90% of its revenue domestically and serves some of the largest US health systems. Medline offers approximately 190,000 Medline-branded products across more than 250 product families—including front line care, surgical solutions, and laboratory and diagnostics—as well as roughly 150,000 third-party products sourced from over 1,250 vendors. The company maintains prime vendor relationships with many customers, acting as the primary consolidated logistics partner for their medical-surgical needs. Medline has significant scale, supported by more than 30 manufacturing facilities and a fleet of over 2,000 owned delivery trucks. Medline went public in December 2025.
Market cap 35.6B · 45,000 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
MDLN leads WMT by 4 days
MDLN tends to move before WMT.
After testing 13 timing shifts, the strongest relationship was +0.558 (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
+0.046
9 periods · Return correlation when both series rose
Both Falling
+0.555
7 periods · Return correlation when both series fell
Diverging
-0.529
19 periods · Return correlation when series moved apart
R-Squared
25.9%
Share of variance in one series explained by the other.
Trend Agreement
41.9%
How often both series moved in the same direction period-to-period.
Overlap Quality
75
Thin shared window — 75 usable pairs.
Significance
p < 0.001
95% CI: [0.319, 0.660]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
75 paired data points survived the daily window.
Raw input
75
1,254
Normalized
75
1,254
Prepared
75
1,254
Aligned
75
75
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,179
A: 0 / B: 1179
Series A
Medline Inc. Class A common stock
MDLN
Market cap 35.6B · 45,000 employees
Stock · 75 raw → 75 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
1.2204
Linear regression slope.
Intercept
68.0054
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
MDLN
Medline Inc. Class A common stock
Highest
+0.529
Johnson & Johnson
JNJ · 75 data points
Lowest
-0.600
NetFlix Inc
NFLX · 75 data points
Saved 7 hours ago · ID: stock-mdln-vs-stock-wmt-daily