Correlation Analysis
Costco Wholesale Corp vs NetApp, Inc
COST vs NTAP
+0.803
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
NetApp, Inc
↗NTAP
NetApp Inc is a provider of enterprise data management and storage solutions. The company's segments include Hybrid Cloud and Public Cloud. It generates maximum revenue from the Hybrid Cloud segment. The Hybrid Cloud segment offers a portfolio of storage management and infrastructure solutions that help customers recast their traditional data centers with the power of the cloud. This portfolio is designed to operate with public clouds to unlock the potential of hybrid, multi-cloud operations. Hybrid Cloud is composed of software, hardware, and related support, as well as professional and other services. Geographically, the company generates the majority of its revenue from the United States, Canada and Latin America (Americas).
Market cap 19.9B · 11,700 employees
Time Series
Relative Performance
Who Moves First
NTAP leads COST by 5 days
NTAP tends to move before COST.
After testing 13 timing shifts, the strongest relationship was +0.804 (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
+0.326
13 periods · Return correlation when both series rose
Both Falling
+0.773
9 periods · Return correlation when both series fell
Diverging
-0.763
13 periods · Return correlation when series moved apart
R-Squared
64.5%
Share of variance in one series explained by the other.
Trend Agreement
61.4%
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: [0.783, 0.822]
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
NetApp, Inc
NTAP
Market cap 19.9B · 11,700 employees
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
0.0754
Linear regression slope.
Intercept
39.8361
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 5 hours ago · ID: stock-cost-vs-stock-ntap-daily