Correlation Analysis
Albemarle Corporation vs Costco Wholesale Corp
ALB vs COST
-0.790
Strong inverse
When one moves up, the other tends to move down.
Albemarle Corporation
↗ALB
Albemarle is one of the world's largest lithium producers. In the lithium industry, the majority of demand comes from batteries, where lithium is used as the energy storage material, particularly in electric vehicles. Albemarle is a fully integrated lithium producer. Its upstream resources include salt brine deposits in Chile and the US and two hard rock mines in Australia, both of which are joint ventures. The company operates lithium refining plants in Chile, the US, Australia, and China. Albemarle is a global leader in the production of bromine, used in flame retardants.
Market cap 20.4B · 7,800 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
ALB leads COST by 6 days
ALB tends to move before COST.
After testing 13 timing shifts, the strongest relationship was -0.800 (they moved in opposite directions).
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
-0.347
12 periods · Return correlation when both series rose
Both Falling
-0.692
5 periods · Return correlation when both series fell
Diverging
-0.705
18 periods · Return correlation when series moved apart
R-Squared
62.5%
Share of variance in one series explained by the other.
Trend Agreement
55.6%
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: [-0.810, -0.769]
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
Albemarle Corporation
ALB
Market cap 20.4B · 7,800 employees
Stock · 1,254 raw → 1,254 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
3
Estimated crossover points between normalized spreads.
Slope
-2.4914
Linear regression slope.
Intercept
1093.4826
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-alb-vs-stock-cost-daily