Correlation Analysis
Costco Wholesale Corp vs Howmet Aerospace Inc.
COST vs HWM
+0.872
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
Howmet Aerospace Inc.
↗HWM
Howmet Aerospace Inc offers engineered solutions for the aerospace and transportation industries. The company's products and solutions include investment castings for jet engines and industrial gas turbines; seamless rolled rings for jet engines; fastening systems for aerospace, industrial and commercial transportation applications; forged jet engine components (e.g., jet engine disks); machined and forged aircraft parts; and forged aluminum commercial vehicle wheels, all of which are sold directly to customers or through distributors. It has four reportable segments: Engine Products, which derives key revenue, Fastening Systems, Engineered Structures, and Forged Wheels. Geographically, the company derives maximum revenue from the USA, followed by France, Japan, Germany, and other markets.
Market cap 94.9B · 25,430 employees
Time Series
Relative Performance
Who Moves First
COST leads HWM by 6 days
COST tends to move before HWM.
After testing 13 timing shifts, the strongest relationship was +0.873 (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
+0.645
15 periods · Return correlation when both series rose
Both Falling
N/A
3 periods · Return correlation when both series fell
Diverging
-0.482
17 periods · Return correlation when series moved apart
R-Squared
76.0%
Share of variance in one series explained by the other.
Trend Agreement
61.6%
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: [0.858, 0.885]
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
Howmet Aerospace Inc.
HWM
Market cap 94.9B · 25,430 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
0.2563
Linear regression slope.
Intercept
-91.7380
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-cost-vs-stock-hwm-daily