Correlation Analysis
Costco Wholesale Corp vs Home Depot, Inc.
COST vs HD
+0.706
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
Home Depot, Inc.
↗HD
Home Depot is the world's largest home improvement specialty retailer, operating 2,359 warehouse-format stores offering more than 30,000 products in store and 1 million products online in the US, Canada, and Mexico. Its stores offer building materials, home improvement products, lawn and garden products, and decor products and provide various services, including home improvement installation services and tool and equipment rentals. The acquisition of Interline Brands in 2015 allowed Home Depot to enter the MRO business, which has been expanded through the tie-up with HD Supply (2020). The 2024 tie-up with SRS will help grow professional demand in roofing, pool, and landscaping projects, while the 2025 purchase of GMS will lift building product sales through 1,250 distribution locations.
Market cap 325.3B
Time Series
Relative Performance
Who Moves First
HD leads COST by 3 days
HD tends to move before COST.
After testing 13 timing shifts, the strongest relationship was +0.707 (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
+0.375
15 periods · Return correlation when both series rose
Both Falling
+0.303
8 periods · Return correlation when both series fell
Diverging
-0.440
12 periods · Return correlation when series moved apart
R-Squared
49.8%
Share of variance in one series explained by the other.
Trend Agreement
68.2%
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: [0.677, 0.733]
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
Home Depot, Inc.
HD
Market cap 325.3B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
0.1294
Linear regression slope.
Intercept
254.6946
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-cost-vs-stock-hd-daily