Correlation Analysis
Akamai Technologies Inc vs Costco Wholesale Corp
AKAM vs COST
-0.372
Light inverse
When one moves up, the other tends to move down.
Akamai Technologies Inc
↗AKAM
Akamai operates a content delivery network, which entails locating servers at the edges of networks so its customers, which store content on Akamai servers, can reach their own customers faster, more securely, and with better quality. Akamai has over 325,000 servers distributed over 4,100 points of presence in more than 1,000 cities worldwide. The firm also offers security and cloud computing for its customers, and those businesses have grown to be bigger than the legacy CDN.
Market cap 16.9B · 11,000 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
COST leads AKAM by 6 days
COST tends to move before AKAM.
After testing 13 timing shifts, the strongest relationship was -0.387 (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
+0.203
16 periods · Return correlation when both series rose
Both Falling
+0.668
9 periods · Return correlation when both series fell
Diverging
-0.853
10 periods · Return correlation when series moved apart
R-Squared
13.9%
Share of variance in one series explained by the other.
Trend Agreement
64.2%
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: [-0.419, -0.324]
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
Akamai Technologies Inc
AKAM
Market cap 16.9B · 11,000 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
1
Estimated crossover points between normalized spreads.
Slope
-5.7718
Linear regression slope.
Intercept
1242.8693
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 7 hours ago · ID: stock-akam-vs-stock-cost-daily