Correlation Analysis
Constellation Energy Corporation Common Stock vs Costco Wholesale Corp
CEG vs COST
+0.916
Very strong positive
When one moves up, the other tends to follow.
Constellation Energy Corporation Common Stock
↗CEG
Constellation Energy Corp producer of carbon-free energy and a supplier of energy products and services. The company offers generating capacity that includes nuclear, wind, solar, natural gas, and hydroelectric assets. It sells electricity, natural gas, and other energy-related products and sustainable solutions to various types of customers, including distribution utilities, municipalities, cooperatives, and commercial, industrial, public sector, and residential customers in markets across multiple geographic regions. Its operating segments and reporting units are Mid-Atlantic, Midwest, New York, ERCOT, and Other Power Regions.
Market cap 99.7B · 15,339 employees
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
Time Series
Relative Performance
Who Moves First
in sync
CEG and COST tend to move at the same time.
After testing 13 timing shifts, the strongest relationship was +0.916 (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
-0.206
14 periods · Return correlation when both series rose
Both Falling
+0.106
7 periods · Return correlation when both series fell
Diverging
-0.622
14 periods · Return correlation when series moved apart
R-Squared
83.9%
Share of variance in one series explained by the other.
Trend Agreement
59.3%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,047
Deep shared window — 1,047 usable pairs.
Significance
p < 0.001
95% CI: [0.906, 0.925]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,047 paired data points survived the daily window.
Raw input
1,047
1,254
Normalized
1,047
1,254
Prepared
1,047
1,254
Aligned
1,047
1,047
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
207
A: 0 / B: 207
Series A
Constellation Energy Corporation Common Stock
CEG
Market cap 99.7B · 15,339 employees
Stock · 1,047 raw → 1,047 prepared
Series B
Costco Wholesale Corp
COST
Market cap 451.9B
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
23
Estimated crossover points between normalized spreads.
Slope
1.8296
Linear regression slope.
Intercept
401.9214
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
CEG
Constellation Energy Corporation Common Stock
Highest
+0.968
JPMorgan Chase & Co.
JPM · 1,047 data points
Lowest
+0.306
Johnson & Johnson
JNJ · 1,047 data points
Saved 6 hours ago · ID: stock-ceg-vs-stock-cost-daily