Correlation Analysis
Costco Wholesale Corp vs DoorDash, Inc. Class A Common Stock
COST vs DASH
+0.612
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
DoorDash, Inc. Class A Common Stock
↗DASH
Founded in 2013 within the confines of the San Francisco application renaissance, DoorDash is an online delivery demand aggregator. Consumers can use its app to order food on demand for delivery or in-store pickup from participating merchants. Following the 2022 acquisition of Wolt, the firm also provides this service in Europe and Asia. DoorDash creates a marketplace for merchants to establish an online presence, market their offerings, and meet demand through delivery. The firm provides similar services to non-restaurant businesses, such as grocery, retail, and pet supplies. DoorDash is also rolling out emerging technologies, such as drone delivery, to continually innovate and deliver the best possible service to both supply-side and demand-side participants in its marketplace.
Market cap 67.4B · 31,400 employees
Time Series
Relative Performance
Who Moves First
COST leads DASH by 6 days
COST tends to move before DASH.
After testing 13 timing shifts, the strongest relationship was +0.614 (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
+0.590
15 periods · Return correlation when both series rose
Both Falling
+0.594
7 periods · Return correlation when both series fell
Diverging
-0.896
13 periods · Return correlation when series moved apart
R-Squared
37.5%
Share of variance in one series explained by the other.
Trend Agreement
60.9%
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: [0.576, 0.645]
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
DoorDash, Inc. Class A Common Stock
DASH
Market cap 67.4B · 31,400 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
0.1777
Linear regression slope.
Intercept
14.5269
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
DASH
DoorDash, Inc. Class A Common Stock
Highest
+0.886
NetFlix Inc
NFLX · 1,254 data points
Lowest
-0.011
Exxon Mobil Corporation
XOM · 1,254 data points
Saved 7 hours ago · ID: stock-cost-vs-stock-dash-daily