Correlation Analysis
Church & Dwight Co., Inc. vs Costco Wholesale Corp
CHD vs COST
+0.554
Moderate positive
When one moves up, the other tends to follow.
Church & Dwight Co., Inc.
↗CHD
Church & Dwight is the leading global producer of baking soda. Its portfolio extends beyond its legacy category to include laundry products, cat litter, oral care, deodorant, and nasal care, all sold under the Arm & Hammer brand. Its brands also include Batiste, OxiClean, Vitafusion, Hero, and TheraBreath, which, together with Arm & Hammer, account for around 70% of its annual sales and profits. Most recently, the firm added Touchland and its hand sanitizer business to its fold. Even as it works to expand its product reach, Church & Dwight still derives around 80% of its sales from its home market in the US.
Market cap 22.1B · 5,550 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
CHD leads COST by 6 days
CHD tends to move before COST.
After testing 13 timing shifts, the strongest relationship was +0.556 (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
+0.258
15 periods · Return correlation when both series rose
Both Falling
-0.075
8 periods · Return correlation when both series fell
Diverging
-0.640
12 periods · Return correlation when series moved apart
R-Squared
30.6%
Share of variance in one series explained by the other.
Trend Agreement
62.0%
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: [0.514, 0.591]
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
Church & Dwight Co., Inc.
CHD
Market cap 22.1B · 5,550 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
7
Estimated crossover points between normalized spreads.
Slope
13.2046
Linear regression slope.
Intercept
-557.7779
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 4 hours ago · ID: stock-chd-vs-stock-cost-daily