Correlation Analysis
Coherent Corp. vs Walmart Inc. Common Stock
COHR vs WMT
-0.031
Near-zero inverse
When one moves up, the other tends to move down.
Coherent Corp.
↗COHR
Coherent Corp is a vertically integrated manufacturing company that develops, manufactures, and markets lasers, transceivers, and other optical and optoelectronic devices, modules, and systems, as well as engineered materials, for use in the communications, industrial, instrumentation, and electronics markets. Its reporting segments are Datacenter Communications and Industrial. Its geographic areas are North America, Europe, China, Japan, and the rest of the world.
Market cap 47.5B · 30,000 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
COHR leads WMT by 6 days
COHR tends to move before WMT.
After testing 13 timing shifts, the strongest relationship was -0.052 (they moved in opposite directions).
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
+0.501
13 periods · Return correlation when both series rose
Both Falling
+0.339
5 periods · Return correlation when both series fell
Diverging
-0.732
17 periods · Return correlation when series moved apart
R-Squared
0.1%
Share of variance in one series explained by the other.
Trend Agreement
54.3%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,207
Deep shared window — 1,207 usable pairs.
Significance
n.s.
95% CI: [-0.088, 0.025]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,207 paired data points survived the daily window.
Raw input
1,207
1,254
Normalized
1,207
1,254
Prepared
1,207
1,254
Aligned
1,207
1,207
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
47
A: 0 / B: 47
Series A
Coherent Corp.
COHR
Market cap 47.5B · 30,000 employees
Stock · 1,207 raw → 1,207 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
6
Estimated crossover points between normalized spreads.
Slope
-0.0084
Linear regression slope.
Intercept
68.6601
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-cohr-vs-stock-wmt-daily