Correlation Analysis
Costco Wholesale Corp vs United Rentals, Inc.
COST vs URI
+0.916
Very 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
United Rentals, Inc.
↗URI
United Rentals is the world's largest equipment rental company, principally operating in the US and Canada. It has 16% share in a highly fragmented market serving general industrial (49%), commercial construction (46%), and residential construction (5%). The company operates a $21 billion fleet of equipment, including aerial platforms, forklifts, excavators, trucks, power generators, and various other materials serving local and national accounts from nearly 1,600 locations in North America and 100 abroad. It has pursued a strategy of bundling specialty rental capabilities to offer its customers more advanced solutions in addition to its core equipment rental business, supporting its ambitions to become a one-stop shop for customers and enhance and maintain its margin profile.
Market cap 46.3B · 28,500 employees
Time Series
Relative Performance
Who Moves First
URI leads COST by 6 days
URI tends to move before COST.
After testing 13 timing shifts, the strongest relationship was +0.918 (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
+0.037
14 periods · Return correlation when both series rose
Both Falling
+0.420
7 periods · Return correlation when both series fell
Diverging
-0.604
14 periods · Return correlation when series moved apart
R-Squared
83.9%
Share of variance in one series explained by the other.
Trend Agreement
59.6%
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: [0.907, 0.925]
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
United Rentals, Inc.
URI
Market cap 46.3B · 28,500 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
37
Estimated crossover points between normalized spreads.
Slope
0.9218
Linear regression slope.
Intercept
-89.0244
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-cost-vs-stock-uri-daily