Correlation Analysis
Costco Wholesale Corp vs MSCI, Inc.
COST vs MSCI
+0.409
Moderate 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
MSCI, Inc.
↗MSCI
MSCI has described its mission as enabling investors to build better portfolios for a better world. MSCI's largest and most profitable segment is its index segment, where it provides benchmarking to asset managers and asset owners. MSCI boasts over $18 trillion in benchmarked assets, including over $2.3 trillion in ETF assets linked to MSCI indexes. The MSCI analytics segment provides portfolio management and risk management analytics software to asset managers and asset owners. In its sustainability and climate segment, MSCI provides ESG data to the investment industry. In private assets, MSCI provides real restate reporting, market data, benchmarking, and analytics to investors and real estate managers.
Market cap 40B · 6,268 employees
Time Series
Relative Performance
Who Moves First
MSCI leads COST by 6 days
MSCI tends to move before COST.
After testing 13 timing shifts, the strongest relationship was +0.411 (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
+0.239
16 periods · Return correlation when both series rose
Both Falling
+0.510
8 periods · Return correlation when both series fell
Diverging
-0.705
11 periods · Return correlation when series moved apart
R-Squared
16.7%
Share of variance in one series explained by the other.
Trend Agreement
66.4%
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: [0.362, 0.454]
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
MSCI, Inc.
MSCI
Market cap 40B · 6,268 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
0.1100
Linear regression slope.
Intercept
459.2568
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-cost-vs-stock-msci-daily