Correlation Analysis
ResMed Inc. vs Walmart Inc. Common Stock
RMD vs WMT
+0.383
Light positive
When one moves up, the other tends to follow.
ResMed Inc.
↗RMD
ResMed is one of the largest respiratory care device companies globally, primarily developing and supplying flow generators, masks and accessories for the treatment of sleep apnea. Increasing diagnosis of sleep apnea combined with ageing populations and increasing prevalence of obesity is resulting in a structurally growing market. The company earns roughly two thirds of its revenue in the Americas and the balance across other regions dominated by Europe, Japan and Australia. Recent developments and acquisitions have focused on digital health as ResMed is aiming to differentiate itself through the provision of clinical data for use by the patient, medical care advisor and payer in the out-of-hospital setting.
Market cap 32.8B · 10,600 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
RMD leads WMT by 6 days
RMD tends to move before WMT.
After testing 13 timing shifts, the strongest relationship was +0.389 (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
+0.051
16 periods · Return correlation when both series rose
Both Falling
+0.590
7 periods · Return correlation when both series fell
Diverging
-0.301
12 periods · Return correlation when series moved apart
R-Squared
14.6%
Share of variance in one series explained by the other.
Trend Agreement
60.4%
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: [0.334, 0.429]
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
ResMed Inc.
RMD
Market cap 32.8B · 10,600 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
40
Estimated crossover points between normalized spreads.
Slope
0.2862
Linear regression slope.
Intercept
1.9512
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-rmd-vs-stock-wmt-daily