Correlation Analysis
Costco Wholesale Corp vs Nucor Corporation
COST vs NUE
+0.325
Light 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
Nucor Corporation
↗NUE
Nucor Corp manufactures steel and steel products. The company's reportable segments are steel mills, steel products, and raw materials. The majority of its revenue is derived from the steel mills segment, which is engaged in producing sheet steel (hot-rolled, cold-rolled, and galvanized), plate steel, structural steel (wide-flange beams, beam blanks, H-piling, and sheet piling), and bar steel products. Nucor manufactures steel principally from scrap steel and scrap steel substitutes using electric arc furnaces (EAFs), along with continuous casting and automated rolling mills. The steel mills segment sells its products mainly to steel service centers, fabricators, and manufacturers located in the United States, Canada, and Mexico.
Market cap 38.6B · 33,000 employees
Time Series
Relative Performance
Who Moves First
in sync
COST and NUE tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.325 (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
-0.047
12 periods · Return correlation when both series rose
Both Falling
+0.478
5 periods · Return correlation when both series fell
Diverging
-0.866
18 periods · Return correlation when series moved apart
R-Squared
10.6%
Share of variance in one series explained by the other.
Trend Agreement
56.0%
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: [0.275, 0.374]
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
Nucor Corporation
NUE
Market cap 38.6B · 33,000 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
11
Estimated crossover points between normalized spreads.
Slope
0.0393
Linear regression slope.
Intercept
114.4440
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-cost-vs-stock-nue-daily