Correlation Analysis
Costco Wholesale Corp vs Mondelez International, Inc. Class A
COST vs MDLZ
-0.091
Weak inverse
When one moves up, the other tends to move down.
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
Mondelez International, Inc. Class A
↗MDLZ
Mondelez has operated independently since its split from the former Kraft Foods North American grocery business in October 2012. The firm is a leading player in the global snack enclave with a presence in the biscuit (48% of sales as of the end of fiscal 2025), chocolate (33%), gum/candy (10%), beverage (3%), and cheese and grocery (6%) aisles. Mondelez's portfolio includes well-known brands like Oreo, Chips Ahoy, Halls, and Cadbury. The firm derives around one-third of its revenue from developing markets, around 40% from Europe, and more than one-fourth from North America.
Market cap 74.9B · 91,000 employees
Time Series
Relative Performance
Who Moves First
COST leads MDLZ by 6 days
COST tends to move before MDLZ.
After testing 13 timing shifts, the strongest relationship was -0.105 (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
+0.158
11 periods · Return correlation when both series rose
Both Falling
-0.882
6 periods · Return correlation when both series fell
Diverging
-0.613
18 periods · Return correlation when series moved apart
R-Squared
0.8%
Share of variance in one series explained by the other.
Trend Agreement
62.7%
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 < 0.01
95% CI: [-0.146, -0.036]
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
Mondelez International, Inc. Class A
MDLZ
Market cap 74.9B · 91,000 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
-0.0022
Linear regression slope.
Intercept
66.8367
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
COST
Costco Wholesale Corp
Highest
+0.977
Republic Services Inc.
RSG · 1,254 data points
Lowest
-0.912
Fiserv, Inc. Common Stock
FISV · 644 data points
MDLZ
Mondelez International, Inc. Class A
Highest
+0.120
Exxon Mobil Corporation
XOM · 1,254 data points
Lowest
-0.584
Tesla, Inc. Common Stock
TSLA · 1,254 data points
Saved 6 hours ago · ID: stock-cost-vs-stock-mdlz-daily